IS 2062 acceptance is a chain: representative sampling, cast/product chemical analysis (CE), tensile test (IS 1608), bend test, and Charpy impact for the C/D quality grades, all judged against the specified yield grade AND quality grade. Mill test certificates must be verified against the specified grade — the recurring error is accepting 'IS 2062 steel' without confirming the actual grade and quality.
Key Requirements
•Representative sampling per heat/cast/section; cast and product analysis for chemistry/CE
•Tensile (IS 1608), bend, and Charpy (C/D grades, IS 1757) tests to the specified grade
•Verify the mill test certificate matches the SPECIFIED yield grade AND quality grade
•Reject material that meets the E-number but not the required quality (weldability/impact)
•Traceability/marking so grade is identifiable at fabrication
Practical Notes
✓The common failure is accepting steel on 'IS 2062' alone — confirm both the yield grade and the quality grade on the certificate and by test where critical.
✓For welded/critical structures, independent test verification (not just the mill TC) is prudent — the quality grade is a safety property.
Common Mistakes
⚠Accepting 'IS 2062' without confirming the specified yield AND quality grade.
⚠Trusting the mill TC without verification on critical/welded work.