Responsible Welding Coordinator (RWC) Services

Our company offers comprehensive Responsible Welding Coordinator (RWC) services in line with ISO 3834 and relevant international welding standards. Our experienced RWC professionals ensure full compliance with welding quality requirements by overseeing welding operations, reviewing technical documentation, qualifying welding procedures and personnel, and maintaining effective coordination between production and quality assurance. With a focus on safety, traceability, and consistent workmanship, our RWC services help clients achieve reliable welding performance and certification readiness across various industries, including structural steel, pressure vessels, pipelines, and more.

WPS/ PQR Qualifications

WPS Development (Welding Procedure Specification) - Identify applicable standards (e.g. ASME Section IX, ISO 15614, AWS D1.1) - Select base materials and filler metals based on project requirements - Define joint design, welding positions, and preheat/post-weld heat treatment - Specify essential and non-essential welding variables: - Amperage, voltage, travel speed, shielding gas, electrode type - Ensure alignment with client specifications and regulatory codes - Draft WPS documents for production use and welder guidance PQR Execution (Procedure Qualification Record) - Prepare and weld test coupons using preliminary WPS (pWPS) - Conduct destructive and non-destructive testing: - Tensile, bend, impact, macro/micro examination, radiography, etc. - Record actual welding parameters used during qualification - Validate mechanical properties and weld integrity against code requirements - Finalize and approve PQR as evidence of procedure reliability Documentation & Compliance - Maintain traceable records of WPS, PQR, and WPQ (Welder Performance Qualification) - Ensure documentation meets audit and certification standards (e.g. ISO 3834) - Support CE marking and other regulatory compliance for structural steel Technical Review & Support - Review third-party or subcontractor WPS/PQR submissions - Provide technical support during fabrication and inspection phases - Liaise with clients, inspectors, and certifying bodies to resolve queries.

Welder Qualifications

Preparation & Planning - Review project specifications and applicable welding codes (e.g. ASME, ISO, AWS) - Select appropriate Welding Procedure Specifications (WPS) for qualification testing - Identify required welder skill sets, joint configurations, and welding positions Execution of Qualification Tests - Supervise or coordinate welder performance qualification tests (WPQ) - Ensure test coupons are prepared and welded under controlled conditions - Monitor and record essential welding variables during testing: - Current, voltage, travel speed, shielding gas, electrode type, etc. Inspection & Evaluation - Facilitate destructive and non-destructive testing of test welds: - Visual inspection, bend tests, radiographic testing, ultrasonic testing, etc. - Evaluate results against code acceptance criteria to determine qualification status - Document findings and ensure traceability of test records Certification & Documentation - Prepare and issue Welder Qualification Records (WQR/WPQ) with full traceability - Maintain welder qualification matrix and renewal schedules - Ensure documentation complies with quality management systems (e.g. ISO 3834) Technical Support & Oversight - Provide guidance to welders on technique improvements and procedural compliance - Liaise with third-party inspectors and certifying bodies during audits - Support continuous improvement through feedback and requalification programs

Weld Visual Inspection

Before Welding - Review WPS and PQR: Ensure welding procedures are approved and applicable. - Verify Welder Certification: Confirm that welders are qualified per project standards. - Check Materials and Consumables: Validate MTCs and inspect electrodes/fillers. - Inspect Joint Preparation: Confirm groove geometry, root gap, and alignment. - Confirm Preheat Requirements: verify preheat temperature before welding begins. During Welding - Monitor Welding Parameters: Ensure current, voltage, and travel speed match WPS. - Observe Technique and Progress: Check for proper slag removal and interpass cleaning. - Witness Root Pass and Interpass Temperatures: Confirm adherence to procedure. - Inspect Consumables: Ensure correct usage and storage of electrodes and filler materials. After Welding - Conduct Full Visual Examination: Look for surface defects and discontinuities. - Identify and Document Defects: - Cracks - Undercut - Underfill - Surface porosity - Overlap - Lack of fusion - Arc strikes - Spatter - Excessive reinforcement or penetration - Dimensional Survey: Verify weld size, throat thickness, and leg length. - Mark and Record Welds: Punch identification numbers and document inspection results.

Welding Supervision

Welding Engineering - Develop and approve Welding Procedure Specifications (WPS) - Oversee Procedure Qualification Records (PQR) - Ensure compliance with applicable standards (e.g., ASME IX, AWS D1.1) Material Selection - Verify material certificates and compatibility - Ensure correct filler materials and consumables are used Welding Supervision - Monitor welding operations for adherence to WPS - Ensure qualified welders are assigned to tasks - Control environmental conditions (e.g., preheat, interpass temperature) Non-Destructive Examination (NDE) - Coordinate NDT activities (VT, PT, MT, UT, RT) - Review and interpret inspection results - Ensure timely defect resolution and repair procedures Quality Control Management - Implement and maintain welding quality plans - Conduct visual inspections and dimensional checks - Maintain traceability of welds and inspection records Contract Review and Compliance - Analyze client specifications and welding requirements - Ensure project documentation aligns with ISO 3834 scope - Communicate technical requirements to fabrication teams Documentation and Record Keeping - Maintain welder qualification records - Track welding consumables and equipment calibration - Prepare and review Manufacturing Data Records (MDR)

Weld Map and NDT Map Preparations

- Mark all weld joints on drawings (isometric, GA, or fabrication drawings). - Assign unique weld numbers or IDs. - Reference applicable WPS for each weld. - Include PQR numbers and welder IDs where required. - Specify weld type, joint configuration, material grade, thickness, and welding process. - Cross-reference weld IDs with fabrication records, inspection logs, and MDR. - Align weld numbering and mapping with shop floor activities to avoid discrepancies. - Maintain version control and update maps as fabrication progresses or changes occur. - Identify welds requiring NDT based on project specifications, codes (e.g., ASME, AWS). - Specify techniques like RT, UT , MT or PT. - Indicate percentage of weld length or full coverage. - Highlight critical welds needing 100% inspection. - Ensure NDT map references the same weld IDs and locations as the weld map. - Reference applicable standards and acceptance levels (e.g., ASME Section V, ISO 17635). - Provide space or linkage for recording NDT outcomes, defect locations, and repair status. - Ensure NDT maps are part of the final documentation package for client.

MDR Preparations

1. Document Collection & Verification - Gather all fabrication records - Welding Procedure Specifications (WPS) - Procedure Qualification Records (PQR) - Welder Qualification Records (WQTR) - Material Test Certificates (MTCs) - Consumable certificates (electrodes, filler wires) Verify compliance - Ensure all documents meet AS/NZS 5131, AS/NZS ISO 3834, and project standards. - Confirm traceability of materials and personnel qualifications. 2. Welding & Inspection Documentation - Weld Maps & NDT Maps - Include finalized versions with weld IDs, inspection coverage, and results. - NDT Reports - RT, UT, MT, PT reports with acceptance criteria and defect disposition. - Visual Inspection Reports - Fit-up, root pass, final weld inspections with inspector sign-offs. - Repair Records - Documentation of weld repairs, re-inspections, and approvals. 3. Quality Assurance Records - Inspection Test Plans (ITPs) - Signed and approved ITPs showing hold points and witness points. - Calibration Certificates - For inspection tools and equipment used during fabrication and testing. - Process Control Records - Preheat, interpass temperature logs, PWHT records (if applicable). 4. Traceability & Compliance - Material Traceability Matrix - Link materials to components, welds, and certificates. - Compliance Statements - Declaration of conformity to standards and client specifications. - Third-Party Inspection Reports - If required for CC3, include independent verification documents. 5. Final Compilation & Review - Organize MDR Index - Create a structured table of contents with document references. - Cross-check for completeness - Ensure no missing weld IDs, certificates, or inspection records. - Sign-off and Submission - Obtain signatures from QA/QC, project manager, and client (if required). - Submit in digital format (PDF binder or DMS upload) or hard copy as per contract.

Why Choosing Us

In-Depth Knowledge of RWC Requirements

We understand the role and responsibilities of RWCs under AS/NZS ISO 3834 and AS/NZS 5131 standards.

Tailored RWC Implementation Support

We help you establish or strengthen your welding coordination function to meet project and certification needs.

Qualified and Experienced Advisors

Our consultants have practical welding and fabrication experience, ensuring relevant and effective guidance.

Support for Compliance and Certification

We align your RWC systems with ISO 3834 and CC certification requirements for audit and project readiness.

Training and Competency Development

We offer mentoring and training pathways to build internal RWC capability and long-term compliance.