St37-2 equivalent grades: ASTM, EN, JIS, GB, DIN
Cross-reference for St37-2 across standard systems. Each match is graded so you can see how safe the substitution is. General structural steel (DIN 17100, withdrawn) — today S235JR — full St37-2 data sheet.
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| 40B | BS (superseded British) | Near | BS 4360 40B (withdrawn). |
| Q235B | 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'. |
| IS 2062 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 = same composition and mechanical limits within rounding. Near = one limit differs (e.g. carbon max or impact temperature). Functional = interchangeable for most uses after an engineering check.
How the matches are graded
Identical means the chemical composition windows overlap so that material certified to one specification meets the other without deviation, and the mechanical minimums are the same or the other is inside them — mills usually dual-certify. Near means one limit differs (a carbon maximum, an impact temperature, a strength minimum or a delivery condition) and a substitution needs a one-line engineering check. Functional means the grades serve the same purpose but are not the same steel — a designer can often use one for the other, but only after re-checking the design.
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)
- Q235B — 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)
- IS 2062 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.