Third-Party Inspection Services

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Third-Party Inspection Services for Welding & Structural Works

โœ… What is Third-Party Inspection (TPI)?

Third-Party Inspection (TPI) refers to independent, unbiased verification services carried out by a certified inspection body that is not directly involved in the manufacturing, fabrication, or installation process.

In the context of welding and structural fabrication, TPI ensures that the work is executed as per the approved design, codes, quality plans, and international standards, providing assurance to clients, consultants, and regulatory authorities.

๐Ÿ› ๏ธ Scope of TPI Services for Welding & Structures

โœ”๏ธ Pre-Fabrication Inspection

  • Review of drawings, WPS, PQR, and WPQ
  • Material identification and traceability checks (MTC review)
  • Welder certification and qualification verification
  • Equipment calibration and consumables storage check
  • Fit-up inspection and joint preparation validation

โœ”๏ธ In-Process Welding Inspection

  • Monitoring welding parameters (amps, volts, travel speed)
  • Inter-pass temperature control and cleanliness
  • Visual weld monitoring (arc strikes, slag, alignment)
  • Verification of filler material, backing strips, and gas types
  • Adherence to approved WPS and welding sequence

โœ”๏ธ Post-Welding Inspection

  • Final Visual Weld Inspection (VT)
  • NDT Coordination and Witnessing:
    • RT (Radiography)
    • UT (Ultrasonic Testing)
    • LPT (Dye Penetrant Testing)
    • MPT (Magnetic Particle Testing)
  • Dimensional inspection and tolerances
  • Weld size, throat thickness, and leg length verification
  • Repair welding control and documentation

โœ”๏ธ Structural Inspection Scope

  • Verification of structural steel sections, bolts, and weldments
  • Alignment checks and plumbness verification
  • Assembly and erection sequence inspection
  • Inspection of connections (welded and bolted)
  • Paint and coating inspection (DFT, adhesion, surface profile)
  • Galvanizing inspection (thickness, finish, uniformity)

โœ”๏ธ Quality Documentation Review

  • Review of Inspection Test Plan (ITP)
  • Quality Assurance Plan (QAP) and Method Statement verification
  • Welder logbooks, consumable batch records, heat numbers
  • NDT reports, dimensional reports, and calibration certificates
  • Final inspection release notes and punch list clearance

๐Ÿ“˜ Applicable Codes & Standards

  • ASME Section IX
  • AWS D1.1 / D1.6
  • BS EN ISO 3834 / 9606
  • IS 2062 / IS 800 (India Standards)
  • AISC / ASTM
  • Client-specific specs (e.g., ONGC, BHEL, L&T)

๐Ÿ“‹ Reporting and Certification

Following inspections, a complete set of detailed reports and certificates are provided, including:

  • TPI Checklists
  • Inspection Release Certificates (IRC)
  • Non-Conformance Reports (NCR)
  • Site observation reports
  • Welding & NDT summary
  • Final dossier for project handover

๐Ÿ‘จโ€๐Ÿญ Industries We Serve

  • Oil & Gas (Onshore / Offshore)
  • Petrochemical & Refinery Projects
  • Shipbuilding & Marine Fabrication
  • Power Plants (Thermal / Hydro / Nuclear)
  • Heavy Structural Fabrication
  • Railways & Infrastructure
  • Aerospace & Defense

๐Ÿ† Benefits of Third-Party Welding & Structural Inspection

  • Ensures compliance with client and code specifications
  • Prevents costly rework and project delays
  • Enhances quality, safety, and reliability
  • Builds confidence with independent validation
  • Helps meet regulatory and audit requirements
  • Facilitates on-time project approvals and certifications

๐Ÿ“ Why Choose Our Services?

  • Certified CSWIP / AWS / ISO 9712 / ASNT inspectors
  • Pan-India & international inspection coverage
  • Fast report turnaround with real-time updates
  • Detailed documentation and traceability
  • End-to-end support from fabrication to final handover