A weld defect or a casting flaw is invisible from the outside. By the time it fails in a structure, a pipeline, or a piece of machinery the cost of finding it has multiplied many times over. Steel and metal inspection exists to find these problems on the shop floor, not in the field.
TNV Inspection Division provides UAF-accredited steel and metal inspection services in India, under ISO/IEC 17020:2012 (Accreditation No. 5241222IB04). As a Type A inspection body, we hold no commercial stake in the fabricator, mill, or buyer. Our inspectors verify materials and workmanship against exactly what the drawings and specifications require.
We work with fabricators, steel mills, casting and forging units, and buyers across India’s structural steel, metals, and fabrication sector.
What is Steel and Metal Inspection?
Steel and metal inspection is the independent, on-site verification of structural steel, castings, forgings, pipes, fittings, and fabricated metal assemblies against material certificates, engineering drawings, and applicable fabrication codes.
Depending on the product and contract, this typically covers:
- Material verification : confirming steel grade, chemical composition, and mechanical properties against mill test certificates and purchase specifications
- Dimensional and visual inspection : checking fabricated components against approved drawings and tolerances
- Weld inspection and NDT : ultrasonic testing (UT), radiographic testing (RT), magnetic particle inspection (MPI), and dye penetrant testing (DPT) applied to welds and critical components, typically aligned with codes such as ISO 3834
- Casting and forging inspection : surface and internal defect checks for cast and forged components
- Coating and surface treatment inspection : verifying paint, galvanising, or other protective coatings meet specification
- Pre-dispatch inspection : final checks before fabricated components leave the workshop
The Importance of Steel and Metal Inspection in India
- Fabrication Defects Are Expensive to Fix After Installation: A weld that fails inspection at the fabrication stage costs a fraction of what it costs to repair after the component has been transported, installed, and put into service — sometimes as part of a larger assembly that must now be partially dismantled.
- Structural Steel Underpins Major Infrastructure and Industrial Projects: Structural steel and fabricated components are load-bearing elements in buildings, bridges, pipelines, and industrial plants. Independent inspection provides documented assurance that these components meet the specifications they are certified against before they carry real loads.
- India’s Steel and Fabrication Sector Serves Demanding End Markets: Steel and metal fabricators supply into oil and gas, construction, power, and heavy industry — sectors where end clients and EPC contractors frequently specify third party inspection as a contractual or tender requirement.
- Multiple Fabrication Vendors Require Consistent Quality Verification: Large projects often source structural steel and fabricated components from multiple vendors in parallel. Independent inspection provides a consistent, unbiased quality standard across all of them, rather than relying on each vendor’s own quality claims.
Inspection Services We Offer
- Material Verification: Checking steel, castings, and forgings against mill test certificates, chemical composition requirements, and mechanical property specifications.
- Dimensional and Visual Inspection: Verification of fabricated structural steel, pipes, fittings, and assemblies against approved drawings and tolerances.
- Weld Inspection and NDT: Non-destructive testing including ultrasonic testing (UT), radiographic testing (RT), magnetic particle inspection (MPI), and dye penetrant testing (DPT), along with visual weld inspection against relevant fabrication codes such as ISO 3834.
- Casting and Forging Inspection: Surface and dimensional inspection of cast and forged components, with NDT coordination for internal defect detection where required.
- Coating and Surface Treatment Inspection: Verification of paint systems, galvanising, and other protective coatings against specification, important for corrosion protection in outdoor and industrial environments.
- Pre-Dispatch Inspection: Final inspection of fabricated components before they leave the workshop, confirming conformance to purchase order and specification before transport.
Areas We Serve for Steel and Metal Inspection
TNV provides steel and metal inspection services across India’s major steel production and fabrication regions, with strong active coverage in:
- Jharkhand : structural steel and fabrication units serving the state’s steel production base
- Odisha : steel and metal fabrication inspection across the state’s industrial belt
- West Bengal : structural steel fabrication inspection
- Gujarat : pipe, fitting, and fabricated component inspection across the state’s industrial corridor
- Maharashtra : structural steel and fabrication inspection for industrial and infrastructure projects
For fabrication inspection needs in other states, contact us directly we mobilise inspectors across India.
Our Steel and Metal Inspection Process
- Step 1 : Scope and Standards Confirmation You share drawings, material specifications, applicable codes, and the inspection milestones required. We confirm scope and provide a cost estimate.
- Step 2 : Inspector and NDT Resource Assignment We assign inspectors experienced in your fabrication type, along with NDT technicians where specialised testing is required.
- Step 3 : Stage-wise Inspection Our inspectors conduct inspection at raw material stage, in-process fabrication, and pre-dispatch, verifying conformance at each step.
- Step 4 : Inspection and Test Reports You receive detailed reports for each milestone, including findings, NDT results, photographic evidence, and any non-conformances identified.
- Step 5 : Follow-Up and Closeout Verification Where non-conformances are found, we support corrective action verification and re-inspection before dispatch is approved.
Benefits of Choosing TNV for Steel and Metal Inspection
- UAF Accreditation — Internationally Recognised: TNV Global Limited is accredited by the United Accreditation Foundation (UAF), an IAF MLA signatory and APAC MRA signatory. Accreditation No. 5241222IB04, valid through December 2028.
- Type A Independence: TNV has no financial relationship with fabricators, mills, or buyers. Our findings are not shaped by commercial pressure from any party in the supply chain.
- Specialised NDT and Welding Inspection Capability: Our inspectors and NDT technicians are equipped to handle the welding and testing verification that structural steel and fabricated metal components require.
- Coverage Across India’s Steel and Fabrication Belt: We inspect across Jharkhand, Odisha, West Bengal, Gujarat, and Maharashtra, so your fabrication inspection is not limited by geography.
- Trusted by Established Indian Organisations: Our client base includes IRCTC, Adani Wilmar, Patanjali Ayurved, and ICAR, reflecting a track record across large-scale Indian industrial supply chains.
- Verifiable Accreditation: Our accreditation status can be verified at any time at certificate.tnvib.com.
Request a Steel & Metal Inspection Quote in India
Tell us about your component, fabrication scope, and applicable standards. We will respond within one business day with a scope confirmation and cost estimate.
Email: info@tnvib.com
Website: www.tnvib.com
Head Office: TNV House, B-1/19/69, Sector-K, Aliganj, Lucknow, Uttar Pradesh 226204, India
Accreditation No. 5241222IB04 | ISO/IEC 17020:2012 | Type A Inspection Body | Valid through December 2028 | Verify at certificate.tnvib.com
Frequently Asked Questions(FAQ)
What is steel and metal inspection?
Steel and metal inspection is the independent verification of structural steel, castings, forgings, pipes, fittings, and fabricated metal components against material certificates, engineering drawings, and applicable fabrication codes such as ISO 3834.
Does TNV perform weld inspection and NDT for steel fabrication?
Yes. TNV provides weld inspection and non-destructive testing including ultrasonic testing (UT), radiographic testing (RT), magnetic particle inspection (MPI), and dye penetrant testing (DPT) for structural steel and fabricated metal components.
Which regions does TNV cover for steel and metal inspection?
TNV provides steel and metal inspection services across India's major fabrication and steel production regions, including Jharkhand, Odisha, West Bengal, Gujarat, and Maharashtra.
How much does steel and metal inspection cost in India?
Cost depends on the component type, fabrication scope, location, and whether NDT is required. Contact us at info@tnvib.com for a specific quote — initial enquiries are free.
Can TNV inspect castings and forgings before dispatch?
Yes. TNV inspects castings and forgings for material conformance, dimensional accuracy, and surface defects before dispatch, and can coordinate specialised NDT where internal defect detection is required.