EN 10111 — Continuously hot rolled low carbon steel sheet and strip for cold forming. Technical delivery conditions
Last updated
Scope
Hot-rolled sheet and strip for cold forming in grades DD11 (bending), DD12 (drawing), DD13 (deep drawing) and DD14 (extra deep drawing), width ≥ 600 mm, thickness typically 1.5–11 mm; as-rolled or pickled (+P). Chemistry, mechanical properties by thickness, ageing clause and tolerances (EN 10051).
Grades covered by EN 10111
| Grade | No. | Type | C % | Yield MPa | Tensile MPa | Nearest equivalents |
|---|---|---|---|---|---|---|
| DD11 | 1.0332 | Hot-rolled low-carbon steel for cold forming | ≤ 0.12 | 170–360 | ≤ 440 | CS Type B (A1011), SPHC, Q195 / SPHC |
Revision history and superseded standards
| Year | Change |
|---|---|
| 1991 | EN 10111:1991 — FeP11…FeP14 |
| 1998 | EN 10111:1998 — DD11…DD14 names |
| 2008 | EN 10111:2008 — current |
Supersedes: DIN 1614-1 (StW22, StW23, StW24); EN 10111:1991 (FeP11–FeP14).
Where to buy the standard
The full text is copyrighted by CEN and is not reproduced here. Purchase the current edition from CEN or your national standards body. The values on this site are the normative limits as published; the standard's own tables, notes and test methods govern.
Related standards
The hot-rolled counterpart of the DC family
EN 10111 covers continuously hot-rolled low-carbon sheet and strip for cold forming: DD11, DD12, DD13 and DD14 in rising order of formability. The DD grades do for hot-rolled material what the DC grades do for cold-rolled — they guarantee forming behaviour rather than strength — and the two families are frequently confused on drawings.
The practical difference is thickness and surface. Hot-rolled strip starts around 1.5 mm and carries mill scale unless it is pickled; cold-rolled starts far thinner with a clean, dimensionally tighter surface. A part that can be made from hot-rolled material should be, because the cold mill adds cost for nothing the part needs.
Black, pickled and oiled
Hot-rolled strip leaves the mill with an iron-oxide scale. Black material carries it; pickled and oiled material has had it removed in acid and been protected with a light oil film.
The choice is not cosmetic. Scale wrecks press tools, prevents sound welding and cannot be painted over, so any part that is formed, welded or finished needs pickled material. Black is for structural use where the scale is blasted off later or simply tolerated. The price gap between them is the acid line, and it is real.