St37-2 equivalent grades: ASTM, EN, JIS, GB, DIN
St37-2 is general structural steel (DIN 17100, withdrawn) — today S235JR specified in DIN 17100. Substitutes are collected here from 7 standard systems; the grading column says whether a certificate covers the swap or an engineer has to. The full St37-2 data sheet carries the composition and mechanical tables.
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St37-2 and S235JR are the same steel under different national numbers; a single mill certificate covers both. A36, 40B, Q235 and 3 more sit one step away, differ in a strength minimum or in the quality class rather than in the metallurgy. DD11 serves in the same applications, but the composition differs enough that the engineer signs it off, not the buyer. The cross-reference below covers 2 in EN (European), 1 in ASTM / ASME, 1 in BS (superseded British), 1 in GB/T (China), 1 in GOST (Russia/CIS), 1 in IS (India), 1 in JIS (Japan).
Cross-reference table
| Grade | System | Match | Why / differences |
|---|---|---|---|
| S235JR | EN (European) | Identical | Direct successor (1.0038). S235JR guarantees 27 J at +20 °C which St37-2 did not; ordering S235JR always satisfies an St37-2 requirement. |
| A36 | ASTM / ASME | Near | Yield 250 MPa, Rm 400–550 MPa — slightly stronger; the usual US substitute on St37 drawings. |
| 40B | BS (superseded British) | Near | BS 4360 40B (withdrawn). |
| Q235 | GB/T (China) | Near | GB/T 700 Q235B: 235 MPa yield, 370–500 MPa tensile, 27 J at +20 °C. |
| St3sp / St3ps | GOST (Russia/CIS) | Near | GOST 380 St3: yield 245 MPa (≤ 20 mm), Rm 370–480 MPa; the Russian/CIS 'St37'. |
| E250 | IS (India) | Near | Yield 250 MPa, Rm 410 MPa min. |
| SS400 | JIS (Japan) | Near | JIS G3101 SS400: yield 245 MPa, Rm 400–510 MPa; often listed as St37 equivalent in Asian catalogues. |
| DD11 | EN (European) | Functional | Hot-rolled forming sheet often bought 'as St37' in Turkey/Middle East — but it has no guaranteed minimum yield. |
Identical, near and functional are defined once on the grade index; the reason column below says which limit differs in each case.
St37-2 in EN (European)
- S235JR — Identical Direct successor (1.0038). S235JR guarantees 27 J at +20 °C which St37-2 did not; ordering S235JR always satisfies an St37-2 requirement.
- DD11 — Functional Hot-rolled forming sheet often bought 'as St37' in Turkey/Middle East — but it has no guaranteed minimum yield.
St37-2 in ASTM / ASME
- A36 — Near Yield 250 MPa, Rm 400–550 MPa — slightly stronger; the usual US substitute on St37 drawings.
St37-2 in BS (superseded British)
- 40B — Near BS 4360 40B (withdrawn).
St37-2 in GB/T (China)
- Q235 — Near GB/T 700 Q235B: 235 MPa yield, 370–500 MPa tensile, 27 J at +20 °C.
St37-2 in GOST (Russia/CIS)
- St3sp / St3ps — Near GOST 380 St3: yield 245 MPa (≤ 20 mm), Rm 370–480 MPa; the Russian/CIS 'St37'.
St37-2 in IS (India)
- E250 — Near Yield 250 MPa, Rm 410 MPa min.
St37-2 in JIS (Japan)
- SS400 — Near JIS G3101 SS400: yield 245 MPa, Rm 400–510 MPa; often listed as St37 equivalent in Asian catalogues.
Superseded names for St37-2
- St37-2 → S235JR (1.0038) — EN 10025:1993 / EN 10025-2:2004: The direct replacement. Old number 1.0037 (St37-2) merged into 1.0038 (RSt37-2 / S235JRG2).
- USt37-2 → S235JRG1 (1.0036) — EN 10025:1993: Rimmed grade; deleted in EN 10025-2:2004.
- RSt37-2 → S235JRG2 → S235JR (1.0038) — EN 10025:1993 → 2004
- St37-3 U → S235J0 (1.0114) — EN 10025: Impact temperature moved from +20 °C to 0 °C.
- St37-3 N → S235J2G3 → S235J2 (1.0117) — EN 10025
- St37.0 / St37.4 (tubes) — DIN 1629 / DIN 1630 → EN 10216-1 P235TR1/TR2: Tube grades are a separate lineage.
Key data for St37-2
Full composition, mechanical properties by thickness, heat treatment and applications for St37-2 →
Verified against DIN 17100:1980 (withdrawn) and EN 10025-2:2019. Last checked: September 2026.