DD11 equivalent grades: ASTM, EN, JIS, GB, DIN
DD11 is hot-rolled low-carbon steel for cold forming specified in EN 10111. Substitutes are collected here from 8 standard systems; the grading column says whether a certificate covers the swap or an engineer has to. The full DD11 data sheet carries the composition and mechanical tables.
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DD11 and HR1, St 22, IS 1079 D and 1 more are the same steel under different national numbers; a single mill certificate covers both. The near matches are CS Type B (A1011), DD12, Q195 / SPHC and 1 more; what differ is the tested condition, not the alloy. At the functional level St37-2, DD13, S235JR serve as a replacement once the design has been re-run. Counted by system: 1 in BS (superseded British), 2 in DIN (superseded German), 1 in IS (India), 1 in JIS (Japan), 1 in ASTM / ASME, 3 in EN (European), 1 in GB/T (China), 1 in GOST (Russia/CIS).
Cross-reference table
| Grade | System | Match | Why / differences |
|---|---|---|---|
| HR1 | BS (superseded British) | Identical | BS 1449-1 HR1 (commercial hot-rolled). |
| St 22 | DIN (superseded German) | Identical | EN 10111 DD11 is the direct replacement: same chemistry envelope, same role as the general hot-rolled forming sheet. Any supplier asked for St 22 today will quote DD11, and the certificate will say DD11. |
| IS 1079 D | IS (India) | Identical | IS 1079 grade D (drawing) / O (ordinary); D is the DD11 match. |
| SPHC | JIS (Japan) | Identical | JIS G3131 SPHC: C ≤ 0.15, Mn ≤ 0.60, Rm ≥ 270 MPa, A ≥ 27–31 % by thickness. Commercial hot-rolled forming sheet — SPHD ≈ DD12, SPHE ≈ DD13. |
| CS Type B (A1011) | ASTM / ASME | Near | ASTM A1011 Commercial Steel Type B hot-rolled: C ≤ 0.02–0.15, Mn ≤ 0.60, no guaranteed mechanicals. DS (Drawing Steel) Type B corresponds to DD12/DD13. |
| DD12 | EN (European) | Near | Drawing quality with tighter chemistry and higher elongation. |
| Q195 / SPHC | GB/T (China) | Near | GB/T 5213 hot-rolled uses DD11-type names in newer editions; older specs use Q195 (yield ≥ 195 MPa) or 08Al. |
| 08kp / 08ps hot-rolled | GOST (Russia/CIS) | Near | GOST 16523 group KhP (cold-forming quality) on 08kp/08ps base. |
| St37-2 | DIN (superseded German) | Functional | Hot-rolled forming sheet often bought 'as St37' in Turkey/Middle East — but it has no guaranteed minimum yield. |
| DD13 | EN (European) | Functional | Deep-drawing quality (A ≥ 28–33 %) for demanding pressings. |
| S235JR | EN (European) | Functional | Structural steel of similar chemistry with guaranteed 235 MPa yield and impact; DD11 has no minimum yield guarantee for structural design. |
Identical, near and functional are defined once on the grade index; the reason column below says which limit differs in each case.
DD11 in BS (superseded British)
- HR1 — Identical BS 1449-1 HR1 (commercial hot-rolled).
DD11 in DIN (superseded German)
- St 22 — Identical EN 10111 DD11 is the direct replacement: same chemistry envelope, same role as the general hot-rolled forming sheet. Any supplier asked for St 22 today will quote DD11, and the certificate will say DD11.
- St37-2 — Functional Hot-rolled forming sheet often bought 'as St37' in Turkey/Middle East — but it has no guaranteed minimum yield.
DD11 in IS (India)
- IS 1079 D — Identical IS 1079 grade D (drawing) / O (ordinary); D is the DD11 match.
DD11 in JIS (Japan)
- SPHC — Identical JIS G3131 SPHC: C ≤ 0.15, Mn ≤ 0.60, Rm ≥ 270 MPa, A ≥ 27–31 % by thickness. Commercial hot-rolled forming sheet — SPHD ≈ DD12, SPHE ≈ DD13.
DD11 in ASTM / ASME
- CS Type B (A1011) — Near ASTM A1011 Commercial Steel Type B hot-rolled: C ≤ 0.02–0.15, Mn ≤ 0.60, no guaranteed mechanicals. DS (Drawing Steel) Type B corresponds to DD12/DD13.
DD11 in EN (European)
- DD12 — Near Drawing quality with tighter chemistry and higher elongation.
- DD13 — Functional Deep-drawing quality (A ≥ 28–33 %) for demanding pressings.
- S235JR — Functional Structural steel of similar chemistry with guaranteed 235 MPa yield and impact; DD11 has no minimum yield guarantee for structural design.
DD11 in GB/T (China)
- Q195 / SPHC — Near GB/T 5213 hot-rolled uses DD11-type names in newer editions; older specs use Q195 (yield ≥ 195 MPa) or 08Al.
DD11 in GOST (Russia/CIS)
- 08kp / 08ps hot-rolled — Near GOST 16523 group KhP (cold-forming quality) on 08kp/08ps base.
Superseded names for DD11
- StW22 — DIN 1614-1 (withdrawn): Still the common German/Turkish shop name; StW23 = DD12, StW24 = DD13.
- FeP11 — EN 10111:1991: Renamed DD11 in 1998.
- HR1 / HR2 — BS 1449-1: HR1 is the nearer match.
- 1C — NF A 36-301
Key data for DD11
Full composition, mechanical properties by thickness, heat treatment and applications for DD11 →
Verified against EN 10111:2008. Last checked: September 2026.