ICC SI Structural Welding Codes Module - S2CY Exam Book Package Guide

The ICC Structural Welding Codes Module is intended for experienced inspection and construction professionals preparing to demonstrate their understanding of structural welding requirements, welding procedures, welder qualifications, welding symbols, base metals, filler metals, workmanship standards, discontinuities, inspection duties, and nondestructive examination.

The ICC SI Structural Welding Codes Module - S2CY Exam Book Package provides structural steel and AWS welding references selected to support organized, reference-based exam preparation. The package is listed at a sale price of $2,745.00, reduced from the regular price of $2,845.00.

This guide explains the purpose of the Structural Welding Codes Module, the references included in the package, the responsibilities of a Structural Welding Special Inspector, major welding study areas, code-navigation strategies, and practical ways to prepare for the examination.

ICC SI Structural Welding Codes Module - S2CY Exam Book Package

The ICC SI Structural Welding Codes Module - S2CY Exam Book Package is intended for candidates who prefer preparing directly from printed structural steel and welding standards.

Structural welding preparation requires candidates to know which reference applies to a particular material, weld, inspection condition, qualification question, or construction-document symbol. Working directly with the books helps candidates develop the navigation skills needed to identify the correct standard and locate technical requirements efficiently.

The package is listed at a sale price of $2,745.00, reduced from the regular price of $2,845.00.

This package may be appropriate for candidates who:

• Prefer studying from printed technical references
• Need structural steel and AWS welding standards in one package
• Want to practice open-book reference navigation
• Need to review structural steel, reinforcing steel, and sheet steel welding
• Want to improve welding-symbol interpretation
• Already have welding or inspection experience
• Want references that remain useful after the examination

What Is Included in the S2CY Exam Book Package?

The current package listing identifies the following structural steel and welding references:

• Manual of Steel Construction, 15th Edition
• AWS D1.1/D1.1M: Structural Welding Code—Steel, 2020 Edition
• AWS D1.4/D1.4M: Structural Welding Code—Reinforcing Steel, 2018 Edition
• AWS D1.3/D1.3M: Structural Welding Code—Sheet Steel, 2018 Edition
• AWS A2.4:2020 Standard Symbols for Welding, Brazing, and Nondestructive Examination

These references work together to support study of structural steel construction, welded steel connections, reinforcing steel welding, sheet steel welding, welding symbols, inspection procedures, qualification requirements, workmanship standards, and code-based decision-making.

Candidates should verify the current product contents and the references approved for their specific code cycle before purchasing or scheduling the examination.

What Is the ICC Structural Welding Codes Module?

ICC officially identifies the national Structural Welding Codes Module as S2C. The exam book package uses the product designation S2CY, which is associated with a particular preparation path or code cycle.

ICC currently lists the S2C Structural Welding Codes examination with 60 questions and a two-hour testing period.

The examination evaluates the candidate’s ability to locate, understand, and apply structural welding requirements. Questions may involve structural steel welding, reinforcing steel welding, sheet steel welding, welding symbols, welding procedures, personnel qualifications, inspection responsibilities, discontinuities, acceptance criteria, and nondestructive examination.

Candidates should confirm the current exam title, code year, references, testing method, and administrative rules through the ICC Exam Catalog before registering.

Structural Welding Special Inspector Certification Requirements

The Structural Welding Codes Module is connected to the ICC Structural Welding Special Inspector certification pathway.

ICC currently identifies the following requirements for the Structural Welding Special Inspector certification:

• Hold the ICC Structural Steel and Bolting Special Inspector certification, Category S1
• Pass the Structural Welding Codes examination, S2C

The Structural Steel and Bolting Special Inspector certification serves as a prerequisite because structural welding inspectors must already understand structural steel materials, steel construction, approved documents, bolted connections, fabrication, erection, and general steel inspection responsibilities.

Candidates should verify that their prerequisite certification remains active and confirm all current ICC requirements before registering for the S2C examination.

ICC Certification and Jurisdictional Approval

ICC certification does not automatically authorize a person to perform special inspection work in every jurisdiction. The building official or applicable authority determines whether an individual is qualified and approved to serve as a special inspector on a particular project.

Additional approval requirements may include:

• Documented education
• Structural welding inspection experience
• Professional references
• Employer or approved-agency affiliation
• Additional welding credentials
• Jurisdictional registration
• Project-specific qualifications
• Knowledge of locally adopted codes
• Continuing education
• Active ICC certification status

Candidates should review both ICC requirements and the requirements of the jurisdiction where they plan to work.

What Does a Structural Welding Special Inspector Do?

A Structural Welding Special Inspector observes welding operations and verifies that materials, procedures, personnel, workmanship, testing, and completed welds comply with approved construction documents and applicable welding standards.

Common responsibilities may include:

• Reviewing approved structural drawings and specifications
• Interpreting welding symbols and connection details
• Confirming base-metal identification
• Confirming filler-metal classification and storage
• Reviewing welding procedure specifications
• Verifying welder, welding operator, and tack-welder qualifications
• Observing joint preparation and fit-up
• Checking preheat and interpass temperature requirements
• Observing welding technique and sequence
• Performing visual inspection of completed welds
• Reviewing nondestructive examination requirements
• Documenting discontinuities and nonconforming work
• Observing approved repairs
• Preparing daily inspection reports
• Communicating findings to authorized project representatives

The special inspector verifies compliance but does not replace the responsibilities of the contractor, fabricator, erector, welder, welding supervisor, engineer, testing agency, or building official.

Approved Construction Documents

Structural welding inspection begins with the approved construction documents. The inspector must understand what members, welds, materials, procedures, and inspection activities are required for the project.

Important documents may include:

• Approved structural plans
• Project specifications
• Shop drawings
• Erection drawings
• Welding procedure specifications
• Procedure qualification records
• Welder qualification records
• Material certifications
• Filler-metal certifications
• Nondestructive examination procedures
• Statement of special inspections
• Approved submittals
• Requests for information
• Approved revisions and field changes
• Repair procedures

The inspector should compare actual field or shop conditions with the approved documents rather than relying only on customary practice.

Manual of Steel Construction, 15th Edition

The Manual of Steel Construction supports preparation in structural steel terminology, shapes, member properties, connection concepts, specifications, tables, and construction practices.

Important areas to review may include:

• Wide-flange shapes
• Channels and angles
• Structural tees
• Hollow structural sections
• Plates and bars
• Structural member properties
• Connection terminology
• Welded connection concepts
• Steel specifications
• Code of Standard Practice provisions
• Structural steel symbols and abbreviations
• Member identification
• Dimensional tables
• Reference indexes

Candidates should become comfortable identifying structural members and locating supporting information without reading the manual from beginning to end.

AWS D1.1 Structural Welding Code—Steel

AWS D1.1 is the primary structural welding code in the package for welded steel construction. It addresses requirements involving welded joints, welding procedures, personnel qualifications, fabrication, inspection, and acceptance.

Important study areas may include:

• General welding requirements
• Welded connection details
• Prequalified welding procedure specifications
• Welding procedure qualification
• Welder and welding operator qualification
• Fabrication requirements
• Joint preparation and assembly
• Preheat and interpass temperature
• Workmanship requirements
• Inspection responsibilities
• Visual inspection
• Nondestructive examination
• Weld discontinuities
• Acceptance criteria
• Repair and correction procedures

Candidates should practice locating requirements by clause, table, figure, and annex.

AWS D1.4 Structural Welding Code—Reinforcing Steel

AWS D1.4 addresses welding requirements for reinforcing steel used in concrete construction. Welding reinforcing bars requires attention to material properties, carbon equivalence, procedures, preheat, joint details, qualifications, and inspection.

Important study subjects may include:

• Reinforcing bar identification
• Weldable reinforcing steel
• Carbon-equivalent calculations
• Preheat requirements
• Filler-metal selection
• Welding procedure requirements
• Welder qualification
• Direct butt joints
• Lap-welded joints
• Welded splices
• Welding reinforcing bars to structural steel
• Joint preparation
• Inspection requirements
• Acceptance criteria
• Repair of nonconforming welds

Candidates should avoid applying structural steel welding rules automatically to reinforcing steel when AWS D1.4 provides material-specific requirements.

AWS D1.3 Structural Welding Code—Sheet Steel

AWS D1.3 addresses welding requirements for sheet steel. The standard is relevant to thin steel materials and welded connections that differ from heavier structural steel construction.

Important study areas may include:

• Sheet steel material requirements
• Applicable thickness ranges
• Weld types used in sheet steel
• Arc spot welds
• Arc seam welds
• Fillet welds
• Flare-groove welds
• Joint preparation
• Welding procedure requirements
• Welder qualification
• Fabrication requirements
• Visual inspection
• Weld dimensions
• Acceptance criteria
• Repair requirements

Candidates should know when AWS D1.3 applies and how sheet steel welding requirements differ from those used for heavier structural members.

AWS A2.4 Welding Symbols Standard

AWS A2.4 provides standardized symbols used to communicate welding, brazing, and nondestructive examination requirements on drawings and construction documents.

Candidates should understand:

• Reference lines
• Arrow elements
• Tails
• Arrow-side requirements
• Other-side requirements
• Basic weld symbols
• Supplementary symbols
• Contour symbols
• Finish-method symbols
• Weld size
• Weld length
• Pitch and spacing
• Groove angles
• Root openings
• Field-weld symbols
• All-around weld symbols
• Nondestructive examination symbols

Welding-symbol questions require careful attention to where information is placed in relation to the reference line.

Structural Steel Materials

Structural Welding Special Inspectors should understand how base metals are identified and how material properties can affect welding requirements.

Material verification may include:

• Steel specification
• Material grade
• Member shape
• Plate thickness
• Yield strength
• Tensile strength
• Mill test reports
• Heat numbers
• Material markings
• Certificates of compliance
• Approved substitutions
• Material traceability

The inspector should document discrepancies between the installed material and the approved construction documents.

Filler Metals and Welding Consumables

Filler metals must be suitable for the welding process, base metal, joint, position, procedure, and applicable welding standard.

Inspection considerations may include:

• Electrode classification
• Filler-metal strength
• Hydrogen designation
• Manufacturer identification
• Lot or batch information
• Storage condition
• Exposure limits
• Drying and reconditioning
• Electrode ovens
• Flux condition
• Shielding-gas identification
• Contamination
• Damage or deterioration
• Compatibility with the approved procedure

Improper storage or handling can affect weld quality even when the correct filler-metal classification was originally supplied.

Welding Processes

Candidates should recognize common structural welding processes and understand how process selection affects procedures, equipment, consumables, shielding, and inspection.

Processes may include:

• Shielded metal arc welding
• Gas metal arc welding
• Flux-cored arc welding
• Submerged arc welding
• Gas tungsten arc welding
• Stud welding
• Electroslag welding
• Electrogas welding

Important process-related considerations may include:

• Electrode type
• Polarity
• Shielding method
• Travel speed
• Heat input
• Position limitations
• Equipment condition
• Wind protection
• Procedure qualification
• Inspection visibility

Weld Types

Structural welding documents may require several types of welds. Candidates should be able to identify each weld type and understand its basic inspection considerations.

Common weld types include:

• Fillet welds
• Square-groove welds
• V-groove welds
• Bevel-groove welds
• U-groove welds
• J-groove welds
• Flare-V-groove welds
• Flare-bevel-groove welds
• Plug welds
• Slot welds
• Stud welds
• Arc spot welds
• Arc seam welds
• Surfacing welds

The required inspection depends on the weld type, joint configuration, material, procedure, and acceptance criteria.

Welded Joint Types

Welded joints describe the arrangement of the connected materials. Candidates should distinguish the joint type from the weld type.

Common joint types include:

• Butt joints
• Lap joints
• T-joints
• Corner joints
• Edge joints

Joint details may identify:

• Member orientation
• Groove preparation
• Root opening
• Groove angle
• Backing
• Backgouging
• Weld size
• Effective throat
• Weld length
• Required contour

Candidates should practice reading both written details and welding symbols.

Welding Positions

Welding position affects welder qualification, procedure limitations, technique, and inspection.

Common positions include:

• Flat position
• Horizontal position
• Vertical position
• Overhead position

Position designations may also differ according to whether the work involves plate, pipe, groove welds, or fillet welds.

The inspector should confirm that the welder is qualified for the position, process, material, and weld type being performed.

Welding Procedure Specifications

A Welding Procedure Specification provides instructions for producing a weld that complies with the applicable welding code.

A WPS may identify:

• Welding process
• Base-metal specification
• Material thickness range
• Joint design
• Welding position
• Filler-metal classification
• Electrical characteristics
• Shielding gas
• Preheat temperature
• Interpass temperature
• Travel speed
• Heat-input limitations
• Backing or backgouging
• Technique and sequence

The inspector should verify that the WPS applies to the actual welding operation and is available when required.

Prequalified Welding Procedures

Some structural steel welding procedures may be prequalified when all applicable requirements are satisfied. A prequalified procedure does not eliminate the need for a complete written WPS.

Prequalification considerations may include:

• Permitted welding process
• Approved base metal
• Approved filler metal
• Permitted joint detail
• Material thickness
• Welding position
• Preheat and interpass temperature
• Electrical characteristics
• Joint access
• Backing requirements
• Technique limitations
• Code-specific conditions

If the proposed welding operation falls outside the prequalified limits, procedure qualification may be required.

Procedure Qualification Records

A Procedure Qualification Record documents the variables and test results used to demonstrate that a welding procedure can produce an acceptable weld.

Information may include:

• Base-metal type
• Material thickness
• Joint configuration
• Welding process
• Filler-metal classification
• Electrical variables
• Shielding gas
• Preheat and interpass temperature
• Welding position
• Test specimen information
• Mechanical test results
• Visual examination results
• Nondestructive examination results
• Qualification ranges

Candidates should understand the difference between the WPS used for production and the PQR used to support a qualified procedure.

Welder and Welding Operator Qualifications

Welders and welding operators must be qualified for the work they perform when qualification is required by the applicable standard.

Qualification variables may include:

• Welding process
• Weld type
• Welding position
• Base-metal thickness
• Filler-metal classification
• Electrode diameter
• Backing condition
• Pipe diameter
• Progression direction
• Transfer mode
• Test type
• Continuity of qualification

The inspector should verify the individual’s identity, qualification record, permitted range, and continuity before accepting production welding.

Tack Welders and Tack Welding

Tack welds may become part of the completed weld or may be removed during fabrication. Improper tack welding can introduce defects or interfere with final weld quality.

Inspection considerations may include:

• Tack-welder qualification
• Tack-weld location
• Tack-weld size
• Tack-weld length
• Cracking
• Porosity
• Fusion
• Removal of defective tack welds
• Integration into the final weld
• Cleaning before production welding
• Use of temporary attachments
• Approved removal procedures

Tack welds that remain in the completed joint should meet the applicable quality requirements.

Joint Preparation and Fit-Up

Proper joint preparation and fit-up help ensure that the completed weld can achieve the required size, fusion, penetration, profile, and quality.

Inspection subjects may include:

• Joint type
• Groove angle
• Root face
• Root opening
• Member alignment
• Surface condition
• Backing
• Runoff tabs
• Weld access holes
• Dimensional tolerances
• Temporary attachments
• Cleanliness
• Moisture
• Damage or irregularities

Conditions outside permitted tolerances should be corrected or evaluated before welding continues.

Preheat and Interpass Temperature

Preheat and interpass temperature requirements help control cooling rates, reduce cracking risk, and support acceptable weld quality.

The required temperature may depend on:

• Base-metal specification
• Material thickness
• Filler-metal classification
• Welding process
• Joint restraint
• Heat input
• Ambient conditions
• Applicable welding standard
• Approved WPS

Inspection may include verifying:

• Temperature before welding
• Temperature between weld passes
• Location of temperature measurement
• Measurement method
• Maximum interpass temperature
• Maintenance of temperature during welding

Welding Technique and Workmanship

Welding technique affects weld profile, fusion, penetration, discontinuities, heat input, and final quality.

Inspection observations may include:

• Travel direction
• Travel speed
• Electrode angle
• Arc length
• Bead placement
• Stringer or weave technique
• Cleaning between passes
• Removal of slag
• Control of starts and stops
• Weld sequence
• Backgouging
• Protection from wind
• Protection from rain or moisture
• Condition of welding equipment

The inspector should compare observed technique with the approved WPS and applicable code provisions.

Fillet Weld Inspection

Fillet welds are common in structural steel construction. Candidates should understand how fillet weld size, length, profile, termination, and quality are evaluated.

Inspection considerations may include:

• Specified leg size
• Effective throat
• Weld length
• Intermittent weld spacing
• End returns
• Contour
• Convexity
• Concavity
• Undercut
• Overlap
• Porosity
• Cracks
• Fusion
• Weld termination

Weld gauges and other measurement tools may be used to verify dimensions and profile.

Groove Weld Inspection

Groove welds may be partial-joint-penetration or complete-joint-penetration welds. Their requirements depend on the approved joint detail and applicable welding procedure.

Inspection subjects may include:

• Groove type
• Groove angle
• Root opening
• Root face
• Backing
• Backgouging
• Joint alignment
• Weld reinforcement
• Penetration requirements
• Surface profile
• Undercut
• Porosity
• Cracks
• Required nondestructive examination

Candidates should distinguish the required joint penetration from the visible surface appearance of the weld.

Complete-Joint-Penetration Welds

Complete-joint-penetration groove welds are intended to provide weld metal through the full thickness of the joined components at the joint.

Inspection may involve:

• Approved CJP joint detail
• Correct WPS
• Joint preparation
• Backing or backgouging requirements
• Welder qualification
• Preheat and interpass temperature
• Welding sequence
• Visual inspection
• Ultrasonic testing
• Radiographic testing
• Repair procedures
• Final acceptance

CJP welds in critical structural connections may receive additional inspection and testing.

Partial-Joint-Penetration Welds

Partial-joint-penetration groove welds are designed with a specified effective weld size that does not necessarily extend through the entire thickness of the connected material.

Inspection considerations may include:

• Specified effective weld size
• Groove preparation
• Root opening
• Joint angle
• Weld access
• Required penetration
• Weld profile
• Welder qualification
• Procedure requirements
• Acceptance criteria

Candidates should use the approved design and welding symbol to determine the required weld rather than assuming every groove weld must be complete-joint penetration.

Stud Welding

Stud welding is commonly used to attach headed studs, shear connectors, anchors, and other components to structural steel.

Inspection considerations may include:

• Stud type and dimensions
• Base-metal condition
• Equipment setup
• Ferrule condition
• Welding surface cleanliness
• Test studs
• Production welding
• Visual appearance
• Required bend testing
• Incomplete fusion
• Missing weld flash
• Repair or replacement

Candidates should review the applicable inspection and testing procedures for both test studs and production studs.

Weld Discontinuities

A discontinuity is an interruption in the typical structure of a weld or base metal. A discontinuity becomes a defect when it exceeds applicable acceptance criteria.

Common discontinuities may include:

• Cracks
• Porosity
• Slag inclusions
• Lack of fusion
• Incomplete joint penetration
• Undercut
• Overlap
• Underfill
• Excessive convexity
• Excessive concavity
• Arc strikes
• Spatter
• Crater cracks
• Lamellar tearing
• Distortion

Acceptance depends on the type, size, location, orientation, frequency, and applicable welding standard.

Cracks

Cracks are among the most serious welding discontinuities and are generally unacceptable regardless of size when prohibited by the applicable standard.

Crack types may include:

• Longitudinal cracks
• Transverse cracks
• Crater cracks
• Toe cracks
• Root cracks
• Underbead cracks
• Heat-affected-zone cracks
• Delayed hydrogen cracks

When a crack is identified, the inspector should document its location and extent and verify that an approved repair procedure is followed.

Porosity and Slag Inclusions

Porosity consists of gas pockets trapped in the weld metal. Slag inclusions are nonmetallic material trapped within the weld or between weld passes.

Inspection considerations may include:

• Individual discontinuity size
• Frequency
• Distribution
• Alignment
• Location
• Weld type
• Material thickness
• Applicable acceptance criteria
• Required nondestructive examination

Candidates should use the specific acceptance table or clause that applies to the weld and inspection method.

Undercut, Overlap, and Weld Profile

Surface profile conditions can affect stress concentration, weld performance, and acceptance.

Visual inspection may evaluate:

• Undercut depth
• Undercut length
• Overlap
• Excessive convexity
• Excessive concavity
• Underfill
• Weld reinforcement
• Surface roughness
• Transitions at weld toes
• Weld termination
• Crater condition

The inspector should measure questionable conditions and compare them with the applicable acceptance criteria.

Visual Welding Inspection

Visual inspection is one of the most important and frequently used welding inspection methods. It may occur before, during, and after welding.

Before welding, the inspector may review:

• Materials
• WPS availability
• Personnel qualifications
• Joint preparation
• Fit-up
• Cleanliness
• Preheat requirements

During welding, the inspector may observe:

• Welding process
• Filler metal
• Preheat and interpass temperature
• Technique
• Cleaning between passes
• Environmental protection

After welding, the inspector may evaluate:

• Weld size
• Length
• Profile
• Surface discontinuities
• Arc strikes
• Repairs
• Required nondestructive examination

Nondestructive Examination

Nondestructive examination evaluates welds without destroying the completed connection. The required method depends on the project documents, welding standard, connection, material, and expected discontinuity.

Methods may include:

• Visual testing
• Magnetic particle testing
• Liquid penetrant testing
• Ultrasonic testing
• Radiographic testing

Candidates should understand:

• The basic purpose of each method
• Which materials each method can evaluate
• Whether the method detects surface or internal discontinuities
• Required personnel qualifications
• Surface preparation requirements
• Reporting requirements
• Acceptance criteria

Magnetic Particle Testing

Magnetic particle testing is used to identify surface and near-surface discontinuities in ferromagnetic materials.

Important concepts may include:

• Magnetization direction
• Field strength
• Dry or wet particles
• Visible or fluorescent particles
• Surface preparation
• Indication interpretation
• Demagnetization
• Equipment checks
• Personnel qualification
• Documentation

Candidates should understand the limitations of the method and why field direction can affect discontinuity detection.

Liquid Penetrant Testing

Liquid penetrant testing is used to identify surface-breaking discontinuities in nonporous materials.

The basic process may include:

• Surface cleaning
• Penetrant application
• Dwell time
• Excess penetrant removal
• Developer application
• Inspection
• Interpretation
• Post-cleaning

Candidates should understand that liquid penetrant testing does not locate discontinuities that do not reach the surface.

Ultrasonic Testing

Ultrasonic testing uses high-frequency sound waves to evaluate internal weld conditions.

Important concepts may include:

• Sound-beam direction
• Transducer type
• Calibration
• Reference standards
• Couplant
• Scanning patterns
• Indication location
• Indication length
• Signal amplitude
• Acceptance criteria
• Personnel qualification
• Reporting

Ultrasonic testing is commonly associated with examination of complete-joint-penetration groove welds in structural steel.

Radiographic Testing

Radiographic testing uses penetrating radiation to create an image of internal weld conditions.

Important concepts may include:

• Radiation source
• Film or digital imaging
• Image quality indicators
• Exposure arrangement
• Geometric unsharpness
• Density and image quality
• Discontinuity interpretation
• Acceptance criteria
• Radiation safety
• Personnel qualification
• Reporting

Candidates should understand the general purpose and limitations of radiographic testing without assuming it is required for every structural weld.

Welding Inspection Tools

Structural welding inspectors may use several tools to evaluate dimensions, temperatures, profiles, and surface conditions.

Common tools may include:

• Fillet weld gauges
• Bridge-cam gauges
• Undercut gauges
• Steel rules
• Measuring tapes
• Calipers
• Feeler gauges
• Magnifiers
• Flashlights
• Temperature-indicating crayons
• Infrared thermometers
• Surface thermometers
• Mirrors
• Borescopes

Candidates should know the purpose of common tools and the measurements each tool can provide.

Repair of Nonconforming Welds

Nonconforming welds should be evaluated and corrected through an approved process.

Repair considerations may include:

• Identification of the discontinuity
• Determination of its extent
• Engineering review when required
• Approved repair procedure
• Removal of defective weld metal
• Preparation of the repair area
• Preheat requirements
• Qualified welding personnel
• Visual inspection of the repair
• Repeat nondestructive examination
• Documentation of final acceptance

The inspector should not independently design a structural repair unless specifically authorized and qualified to do so.

Temporary Attachments and Arc Strikes

Temporary attachments may be used during fabrication or erection but can damage the base metal if they are installed or removed improperly.

Inspection considerations may include:

• Approved attachment locations
• Welder qualification
• Welding procedure
• Removal method
• Grinding and finishing
• Base-metal damage
• Cracks
• Required nondestructive examination
• Repair procedures

Arc strikes outside the intended weld area should be evaluated according to the applicable welding code and project requirements.

Welding Reinforcing Steel

Welding reinforcing steel requires material-specific preparation because not every reinforcing bar is equally suitable for welding.

Important considerations may include:

• Bar specification and grade
• Material identification
• Carbon-equivalent value
• Bar size
• Joint type
• Preheat temperature
• Filler-metal classification
• Welder qualification
• Connection to structural steel
• Mechanical splice coordination
• Visual inspection
• Repair requirements

Candidates should use AWS D1.4 when the question concerns reinforcing steel welding requirements.

Welding Sheet Steel

Sheet steel welding may involve thin materials, different weld configurations, and acceptance requirements that are addressed by AWS D1.3.

Important study areas may include:

• Applicable material thickness
• Base-metal identification
• Arc spot welds
• Arc seam welds
• Fillet welds
• Flare-groove welds
• Joint fit-up
• Burn-through
• Weld diameter
• Weld length
• Spacing
• Procedure requirements
• Qualification requirements
• Visual acceptance

Candidates should identify the material and governing standard before searching for an answer.

Seismic Welding Considerations

Some structural projects include seismic-force-resisting systems with additional welding, material, inspection, and testing requirements.

Possible study subjects may include:

• Demand-critical welds
• Seismic-force-resisting systems
• Protected zones
• Filler-metal requirements
• Welding procedure limitations
• Welder qualifications
• Preheat and interpass temperature
• Access-hole preparation
• Backing removal
• Weld-tab removal
• Nondestructive examination
• Repair limitations

Candidates should apply only the requirements included in the approved reference set and applicable project documents.

Inspection Frequency

Structural welding inspection may be continuous or periodic depending on the activity, applicable code, approved documents, and statement of special inspections.

Inspection frequency may be influenced by:

• Type of weld
• Connection classification
• Structural system
• Welding process
• Welder qualification
• Fabricator approval status
• Required nondestructive examination
• Project specifications
• Previous deficiencies
• Jurisdictional requirements

The inspector should understand what must be observed before, during, and after welding.

Inspection Reports and Documentation

Inspection reports provide an official record of welding activities observed, documents reviewed, tests performed, deficiencies identified, and corrective work completed.

A complete report may include:

• Project name and address
• Permit or project number
• Date and time of inspection
• Inspector name and certification information
• Shop or field location
• Structural members and connections inspected
• Welding process
• WPS identification
• Welder identification
• Base and filler materials
• Preheat and interpass temperatures
• Visual inspection results
• Nondestructive examination results
• Nonconforming conditions
• Corrective work
• Outstanding items
• Parties notified

Reports should be objective, complete, legible, and based on direct observations or clearly identified records.

Writing Objective Inspection Notes

Inspection notes should describe what occurred without unsupported opinions or vague conclusions.

Effective notes generally identify:

• What was inspected
• Where the work was located
• Which member or connection was involved
• Which welding symbol or detail applied
• Which WPS was used
• Which welder performed the work
• What condition was observed
• What measurement was taken
• Which acceptance requirement applied
• Who was notified
• What correction was completed
• Whether follow-up inspection is required

Specific measurements and observations are more useful than general statements such as “welds looked acceptable.”

Nonconformance Reporting

When welding work does not comply with the approved documents or applicable standard, the inspector should document and report the condition through the established project procedure.

Possible nonconforming conditions may include:

• Unapproved welding procedure
• Unqualified welding personnel
• Incorrect base metal
• Incorrect filler metal
• Improper electrode storage
• Incorrect joint preparation
• Insufficient preheat
• Unacceptable weld size
• Cracks
• Excessive porosity
• Undercut beyond permitted limits
• Incomplete fusion
• Unapproved field modification
• Missing nondestructive examination
• Unapproved repair

The inspector should distinguish observed facts from design recommendations and should not independently approve deviations.

Professional Responsibility

Structural Welding Special Inspectors must remain objective and work within the limits of their assigned authority and qualifications.

Professional responsibilities include:

• Reviewing applicable documents before inspection
• Maintaining independence
• Reporting observations accurately
• Communicating deficiencies promptly
• Protecting project records
• Avoiding conflicts of interest
• Following site safety procedures
• Using properly calibrated equipment
• Working within personal qualifications
• Referring design questions to authorized professionals
• Documenting follow-up inspections
• Maintaining certification requirements

The inspector verifies compliance but does not direct the contractor’s means and methods unless specifically authorized.

How to Use the Five References Together

A major part of S2CY preparation is learning which reference should be used first for each question.

• Use the Manual of Steel Construction for structural steel shapes, member properties, steel terminology, and general steel construction information.
• Use AWS D1.1 for structural steel welding procedures, qualifications, fabrication, inspection, and acceptance.
• Use AWS D1.4 for reinforcing steel welding requirements.
• Use AWS D1.3 for sheet steel welding requirements.
• Use AWS A2.4 for welding, brazing, and nondestructive examination symbols.

Candidates should practice identifying the material, weld, symbol, or inspection issue before opening a reference.

Reference-Book Navigation

An open-book examination still requires fast and accurate reference navigation. Searching the wrong welding standard can consume valuable time.

A practical lookup method includes:

• Read the complete question
• Identify the material being welded
• Identify the welding process or joint type
• Determine whether the question involves procedures, qualifications, fabrication, inspection, or symbols
• Select the most likely reference
• Use the table of contents or index
• Locate the complete clause, table, or figure
• Review notes, footnotes, exceptions, and definitions
• Confirm that the provision applies to the stated condition
• Record difficult topics for additional practice

Organizing the Exam References

Tabs, highlighting, bookmarks, and permitted notes may improve navigation when they comply with current ICC testing rules.

A practical organization system may include tabs for:

• Definitions
• Welding symbols
• Prequalified procedures
• Procedure qualification
• Welder qualification
• Fabrication requirements
• Preheat tables
• Visual inspection
• Acceptance criteria
• Nondestructive examination
• Repairs
• Reinforcing steel welding
• Sheet steel welding
• Structural shape tables
• Frequently used annexes

Candidates should verify current ICC rules before adding tabs, notes, highlighting, or other markings.

How to Prepare for the ICC S2CY Exam

Begin preparing several weeks before the examination and divide the references into manageable study subjects.

A practical study schedule may include:

• Structural steel terminology and materials
• Welding symbols
• Welding processes and weld types
• Joint types and welding positions
• Welding procedure specifications
• Procedure qualification records
• Welder and welding operator qualifications
• Joint preparation and fit-up
• Preheat and interpass temperature
• Structural steel welding under AWS D1.1
• Reinforcing steel welding under AWS D1.4
• Sheet steel welding under AWS D1.3
• Visual inspection and discontinuities
• Nondestructive examination
• Repairs and inspection reports
• Timed reference-navigation practice

Practice with Structural Welding Scenarios

Scenario-based practice helps candidates connect welding standards with realistic shop and field conditions.

Useful practice questions may include:

• Which AWS standard applies to the material?
• Does the WPS apply to the actual joint and welding process?
• Is the welder qualified for the required position?
• What preheat temperature is required?
• Does the welding symbol require work on the arrow side or other side?
• What fillet weld size is specified?
• Is the observed discontinuity acceptable?
• Which nondestructive examination method is required?
• Does the filler metal match the approved procedure?
• Was the electrode stored properly?
• Does the reinforcing steel require a carbon-equivalent calculation?
• What information belongs in the inspection report?

After answering each question, candidates should locate the supporting clause, table, figure, or symbol definition.

Time-Management Strategies

The current S2C examination listing includes 60 questions and a two-hour time limit. This provides an average of approximately two minutes per question.

Helpful time-management strategies include:

• Answer familiar questions first
• Mark difficult questions for later review
• Identify the correct reference before searching
• Avoid spending too much time on one clause or table
• Use permitted tabs efficiently
• Read every symbol, dimension, and unit carefully
• Eliminate clearly incorrect answers
• Keep calculations organized
• Reserve time for unanswered questions
• Practice under realistic time limits

Timed practice can reveal whether a candidate needs to improve terminology, book selection, symbol interpretation, or navigation speed.

Why Book-Based Study Helps

Printed structural steel and AWS references allow candidates to study the same technical language, clauses, tables, figures, and symbols used in structural welding work.

Book-based preparation may help candidates:

• Learn the organization of each standard
• Recognize which reference applies
• Create a personalized tab system
• Highlight important clauses
• Add permitted notes and reminders
• Compare related requirements
• Practice without electronic search tools
• Retain the references for professional use

The package is most effective when candidates actively practice locating and applying requirements instead of relying only on memorization.

Who Should Consider the S2CY Exam Book Package?

The ICC SI Structural Welding Codes Module - S2CY Exam Book Package may be useful for:

• Structural Welding Special Inspector candidates
• Structural Steel and Bolting Special Inspectors
• Certified Welding Inspectors
• Construction inspectors
• Fabrication-shop inspectors
• Field welding inspectors
• Quality-control inspectors
• Quality-assurance personnel
• Engineering technicians
• Structural steel fabricators
• Steel erection personnel
• Welding supervisors
• Building department personnel
• Professionals preparing for the ICC S2C examination

Candidates should confirm that the reference editions match the code cycle approved for their examination.

FAQ

Q. What is the ICC SI Structural Welding Codes Module?

A. It is the codes examination associated with the ICC Structural Welding Special Inspector certification pathway. It evaluates structural welding codes, procedures, qualifications, inspection, symbols, discontinuities, and acceptance requirements.

Q. Is the exam identified as S2C or S2CY?

A. ICC officially identifies the national examination as S2C. The exam book package uses the S2CY product designation.

Q. How many questions are on the S2C examination?

A. ICC currently lists the Structural Welding Codes examination with 60 questions.

Q. How much time is allowed for the examination?

A. ICC currently lists a two-hour testing period.

Q. How much does the S2CY Exam Book Package cost?

A. The package is listed at a sale price of $2,745.00, reduced from the regular price of $2,845.00.

Q. What references are included in the package?

A. The current listing includes the Manual of Steel Construction, 15th Edition; AWS D1.1/D1.1M:2020; AWS D1.4/D1.4M:2018; AWS D1.3/D1.3M:2018; and AWS A2.4:2020.

Q. Does this package include an online course?

A. No. This product is listed as an exam book package containing the specified structural steel and welding references.

Q. What certification is required before earning the Structural Welding Special Inspector certification?

A. ICC currently requires the Structural Steel and Bolting Special Inspector certification, Category S1, as a prerequisite.

Q. Does passing S2C automatically authorize me to perform special inspections?

A. No. The applicable building official or jurisdiction determines whether an individual is approved to perform special inspection work.

Q. What is AWS D1.1 used for?

A. AWS D1.1 addresses structural steel welding procedures, qualifications, fabrication, inspection, nondestructive examination, and acceptance requirements.

Q. What is AWS D1.4 used for?

A. AWS D1.4 addresses welding requirements for reinforcing steel.

Q. What is AWS D1.3 used for?

A. AWS D1.3 addresses welding requirements for sheet steel.

Q. What is AWS A2.4 used for?

A. AWS A2.4 provides standardized welding, brazing, and nondestructive examination symbols.

Q. Why is the Manual of Steel Construction included?

A. It supports study of structural steel terminology, shapes, member properties, connections, specifications, and general steel-reference navigation.

Q. What subjects should I study?

A. Study welding symbols, processes, weld types, procedures, qualifications, joint preparation, preheat, structural steel welding, reinforcing steel welding, sheet steel welding, visual inspection, discontinuities, nondestructive examination, and repairs.

Q. Should I study welder qualifications?

A. Yes. Candidates should understand qualification records, permitted ranges, welding processes, positions, material thicknesses, and continuity requirements.

Q. Should I study welding procedure specifications?

A. Yes. Candidates should understand the information contained in a WPS and how to determine whether it applies to a production weld.

Q. What welding discontinuities should I recognize?

A. Candidates should recognize cracks, porosity, slag inclusions, lack of fusion, incomplete penetration, undercut, overlap, underfill, arc strikes, and profile irregularities.

Q. What nondestructive examination methods should I review?

A. Review visual, magnetic particle, liquid penetrant, ultrasonic, and radiographic examination concepts.

Q. Is the examination open book?

A. Candidates should confirm the current testing format and reference rules through the ICC Exam Catalog before registering.

Q. Can I highlight and tab the books?

A. Reference-marking rules may change. Confirm current ICC requirements for tabs, highlighting, notes, and other modifications before exam day.

Q. How should I study with five references?

A. Learn which reference applies to each material and topic, study the layout of every book, create a permitted navigation system, and complete timed lookup exercises.

Q. Can welding experience replace exam preparation?

A. Welding experience is valuable, but candidates should also practice code navigation, welding-symbol interpretation, qualification review, inspection procedures, and exam-style questions.

Q. Does this package guarantee that I will pass?

A. No. The package supports preparation and reference familiarity, but exam results depend on the candidate’s knowledge, study consistency, and test-day performance.

Q. Where can I purchase the ICC S2CY Exam Book Package?

A. The package is available from 1 Exam Prep at https://1examprep.com/collections/icc-si-structural-welding-codes-module-s2cy.

Conclusion

The ICC Structural Welding Codes Module requires candidates to understand structural steel welding, reinforcing steel welding, sheet steel welding, welding symbols, procedures, personnel qualifications, joint preparation, preheat, workmanship, inspection, discontinuities, nondestructive examination, and repair requirements.

The ICC SI Structural Welding Codes Module - S2CY Exam Book Package brings together the structural steel manual and AWS welding references needed for focused, book-based preparation. The package is listed at a sale price of $2,745.00, reduced from the regular price of $2,845.00.

Successful candidates should begin preparing early, verify the current ICC requirements, study the organization of every reference, practice selecting the correct welding standard, review realistic inspection scenarios, and complete timed code-navigation exercises.

Shop the ICC SI Structural Welding Codes Module - S2CY Exam Book Package

Key Takeaways

• The product is designed for ICC Structural Welding Codes Module preparation.
• ICC officially identifies the national examination as S2C.
• The exam book package uses the S2CY designation.
• The package is listed at a sale price of $2,745.00.
• The regular listed price is $2,845.00.
• The package currently includes five structural steel and AWS welding references.
• ICC currently lists the S2C examination with 60 questions and a two-hour limit.
• The Structural Steel and Bolting Special Inspector certification is a prerequisite for the Structural Welding Special Inspector certification.
• AWS D1.1 covers structural steel welding.
• AWS D1.4 covers reinforcing steel welding.
• AWS D1.3 covers sheet steel welding.
• AWS A2.4 covers welding and nondestructive examination symbols.
• Important study areas include procedures, qualifications, fit-up, preheat, workmanship, inspection, discontinuities, testing, and repairs.
• Candidates should learn which reference applies before beginning each lookup.
• ICC certification does not automatically provide jurisdictional approval to perform special inspections.
• Consistent study, realistic scenarios, and timed reference navigation can improve exam readiness.