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Industry Focus
Pipe & Tube Manufacturing
Dimensional, chemical & mechanical compliance for every production lot.
How QML Serves This Industry
Pipe and tube manufacturers supplying to plumbing, structural, hydraulic, and process industries need batch-wise test certification to satisfy customer specifications and IS/ASTM standards. QML provides chemical analysis, tensile testing, bend testing, and weld examination for seamless and welded pipes, tubes, and hollow sections.
Testing Scope for Pipe & Tube Manufacturing
Every testing requirement matched to what QML does and the applicable standard.
| Testing Requirement | What We Do | Standard |
|---|---|---|
| Chemical composition of tube grade steel | OES analysis — C, Mn, Si, S, P, Cr, Ni, Mo against pipe / tube specification | IS 8811 / ASTM E415 |
| Tensile properties | UTS, yield, elongation on longitudinal strip specimens from tube body | IS 1608-1 / ASTM A370 |
| Flatten / crush test | Flatten tube between platens to specified gap — no crack or open seam | ASTM E290 / IS 2328 |
| Bend test on tube samples | Guided bend — face and root bend on welded tube seam specimens | IS 1599 / ASTM E290 |
| Hardness of tube body & weld seam | Vickers HV10 across ERW seam, HAZ, and parent metal | BS EN ISO 9015-1 |
| Weld seam microstructure | Macro & micro examination of ERW or SAW seam — fusion, penetration, heat-affected zone | ISO 17639 |
| Corrosion resistance of coated / GI tubes | Salt spray test for zinc-coated and hot-dip galvanised tube | ASTM B117 / IS 6745 |
Materials Handled
IS 1239 / IS 3589 mild steel pipes
IS 4923 hollow sections (SHS/RHS/CHS)
IS 1978 / 1979 oil & gas line pipes
Stainless steel tubes (304, 316 — seamless & welded)
Copper tubes (IS 191)
Aluminium tubes & extrusions
Need testing for Pipe & Tube Manufacturing?
Submit your enquiry and our team will confirm scope, turnaround, and pricing — usually within the same working day.