EN 10130 — Cold rolled low carbon steel flat products for cold forming. Technical delivery conditions
Last updated
Scope
Cold-rolled uncoated sheet and strip 0.35–3.0 mm in grades DC01 to DC06 (bending to super-deep-drawing), with surface qualities A/B, finishes b/g/m/r and optional +ZE electro-galvanizing (EN 10152). Specifies chemistry, yield/tensile/elongation, r and n values (DC04+), ageing limits and tolerances (EN 10131).
Grades covered by EN 10130
| Grade | No. | Type | C % | Yield MPa | Tensile MPa | Nearest equivalents |
|---|---|---|---|---|---|---|
| DC01 | 1.0330 | Cold-rolled low-carbon steel for cold forming | ≤ 0.12 | 140–280 | 270–410 | CS Type B, SPCC, DC01 |
Revision history and superseded standards
| Year | Change |
|---|---|
| 1991 | EN 10130:1991 — FeP01…FeP06 |
| 1998 | EN 10130:1998 — DC01…DC06 names |
| 2006 | EN 10130:2006 — current |
Supersedes: DIN 1623-1 (St12, St13, St14); EN 10130:1991 (FeP01–FeP06); BS 1449-1 CR grades.
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Related standards
DC grades are specified by how far they draw
EN 10130 covers cold-rolled low-carbon flat products for cold forming and grades them by formability: DC01 general, DC03 drawing, DC04 deep drawing, DC05 extra deep drawing, DC06 and DC07 for the most severe pressings.
What separates them is not strength. It is the r-value, the plastic strain ratio that measures resistance to thinning, and the n-value, the work-hardening exponent, together with progressively tighter carbon. The higher grades also carry a yield *ceiling* rather than a floor — an unusual specification that exists because a press tool set for soft material fails on hard material, not the other way round.
Surface, oiling and the clock
Two things beyond the grade belong on a cold-rolled order. Surface quality — A for general work, B where the finished part will be painted and the visible face matters — and the surface finish, matt, bright or rough, which controls how lubricant sits during drawing.
The third is time. DC01 in particular is subject to ageing: nitrogen in solution migrates over weeks and produces stretcher strains, visible as bands across a drawn part. Skin-passed material stays formable for a limited period, which is why cold-rolled forming stock is ordered against a production date rather than stockpiled.