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St37-2 is general structural steel (DIN 17100, withdrawn) — today S235JR specified in DIN 17100.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 is cross-certified with S235JR: the composition windows overlap closely enough that one certificate satisfies the other. The near matches are A36, 40B, Q235 and 3 more; what differ is the tested condition, not the alloy. At the functional level DD11 serves as a replacement once the design has been re-run. The table holds 2 in EN (European), 1 in ASTM / ASME, 1 in BS (superseded British), 1 in GB/T (China), 1 in GOST (Russia/CIS), 1 in IS (India), 1 in JIS (Japan).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| 40B | BS (superseded British) | Near | BS 4360 40B (withdrawn).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.