SPHC equivalent grades: ASTM, EN, JIS, GB, DIN
SPHC is hot-rolled mild steel sheet and strip for commercial and drawing quality specified in JIS G3131. The cross-reference runs across 4 standard systems and grades every candidate, so the reason a substitution is safe is on the same row as the name. The full SPHC data sheet carries the composition and mechanical tables.
Last updated
A single clause separates A1011 CS Type B, St 22, DD11 and 2 more: differ either a test temperature or a composition bound that the other does not. At the functional level DX52D, Q195 / Q235 serve as a replacement once the design has been re-run. Across systems that is 1 in ASTM / ASME, 1 in DIN (superseded German), 4 in EN (European), 1 in GB/T (China).
Cross-reference table
| Grade | System | Match | Why / differences |
|---|---|---|---|
| A1011 CS Type B | ASTM / ASME | Near | ASTM A1011 Commercial Steel Type B: hot-rolled sheet with C ≤ 0.10–0.20 and no guaranteed yield. The US equivalent by role; the grade families are organised differently (CS, DS, SS, HSLAS). |
| St 22 | DIN (superseded German) | Near | JIS G3131 SPHC is the Japanese commercial hot-rolled forming grade at the same level: C ≤ 0.15, tensile ≥ 270 MPa, no guaranteed yield. |
| DD11 | EN (European) | Near | EN 10111 DD11: hot-rolled mild steel for cold forming, Rm ≤ 440 MPa, A80 ≥ 24 %, C ≤ 0.12. The direct European counterpart of SPHC; the EN grade caps tensile strength where JIS sets a minimum, so a certificate should be read in both directions. |
| DD12 | EN (European) | Near | EN 10111 DD12 corresponds to SPHD: cleaner chemistry, higher elongation, for drawn parts. |
| DD13 | EN (European) | Near | EN 10111 DD13 corresponds to SPHE: the deep-drawing member of the family. |
| DX52D | EN (European) | Functional | Uncoated hot-rolled commercial sheet; comparable base metal but no coating and no yield band. The coated JIS counterpart is SGCD1 in G3302. |
| Q195 / Q235 | GB/T (China) | Functional | GB/T 700 carbon structural steels often supplied against SPHC enquiries in East Asian trade. Q195 is close in chemistry but is a structural grade with a declared yield. |
Identical, near and functional are defined once on the grade index; the reason column below says which limit differs in each case.
SPHC in ASTM / ASME
- A1011 CS Type B — Near ASTM A1011 Commercial Steel Type B: hot-rolled sheet with C ≤ 0.10–0.20 and no guaranteed yield. The US equivalent by role; the grade families are organised differently (CS, DS, SS, HSLAS).
SPHC in DIN (superseded German)
- St 22 — Near JIS G3131 SPHC is the Japanese commercial hot-rolled forming grade at the same level: C ≤ 0.15, tensile ≥ 270 MPa, no guaranteed yield.
SPHC in EN (European)
- DD11 — Near EN 10111 DD11: hot-rolled mild steel for cold forming, Rm ≤ 440 MPa, A80 ≥ 24 %, C ≤ 0.12. The direct European counterpart of SPHC; the EN grade caps tensile strength where JIS sets a minimum, so a certificate should be read in both directions.
- DD12 — Near EN 10111 DD12 corresponds to SPHD: cleaner chemistry, higher elongation, for drawn parts.
- DD13 — Near EN 10111 DD13 corresponds to SPHE: the deep-drawing member of the family.
- DX52D — Functional Uncoated hot-rolled commercial sheet; comparable base metal but no coating and no yield band. The coated JIS counterpart is SGCD1 in G3302.
SPHC in GB/T (China)
- Q195 / Q235 — Functional GB/T 700 carbon structural steels often supplied against SPHC enquiries in East Asian trade. Q195 is close in chemistry but is a structural grade with a declared yield.
Superseded names for SPHC
- SPHC — JIS G3131:1996: the designation is unchanged in the 2018 edition
- SS400 (confused with) — JIS G3101: a structural grade with 245 MPa guaranteed yield — not a substitute for a forming grade
Key data for SPHC
Full composition, mechanical properties by thickness, heat treatment and applications for SPHC →
Verified against JIS G3131:2018. Last checked: September 2026.