A36 equivalent grades: ASTM, EN, JIS, GB, DIN
A36 is carbon structural steel specified in ASTM A36. The cross-reference runs across 9 standard systems and grades every candidate, so the reason a substitution is safe is on the same row as the name. The full A36 data sheet carries the composition and mechanical tables.
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Mills routinely dual-certify A36 as IS 2062 E250 A — the limits sit inside each other in both directions. The near matches are A283 Gr. C / D, A1011 CS / SS Gr 36, 43A / S275 and 8 more; what differ is the tested condition, not the alloy. 1018 / 1020, 1018, A572 Grade 50 and 3 more serve the same purpose without being the same steel, so a substitution there needs the design re-checked rather than the certificate. The cross-reference below covers 2 in IS (India), 5 in ASTM / ASME, 1 in BS (superseded British), 1 in DIN (superseded German), 3 in EN (European), 2 in GB/T (China), 1 in GOST (Russia/CIS), 1 in JIS (Japan), 2 in AISI / SAE.
Cross-reference table
| Grade | System | Match | Why / differences |
|---|---|---|---|
| IS 2062 E250 A | IS (India) | Identical | IS 2062 E250 (Fe 410): yield 250 MPa, Rm 410 MPa min, C ≤ 0.23 — the Indian A36. |
| A283 Gr. C / D | ASTM / ASME | Near | Lower-strength plate (205 / 230 MPa yield) for tanks and non-critical structures; Grade D is near A36. |
| A1011 CS / SS Gr 36 | ASTM / ASME | Near | Hot-rolled sheet/strip < 6 mm; SS Grade 36 has the same 250 MPa yield in sheet form. |
| 43A / S275 | BS (superseded British) | Near | BS 4360 43A (withdrawn; 275 MPa yield) was the historical UK match; today S275JR. |
| St37-2 | DIN (superseded German) | Near | Yield 250 MPa, Rm 400–550 MPa — slightly stronger; the usual US substitute on St37 drawings. |
| S235JR | EN (European) | Near | Yield 235 MPa (≤ 16 mm), Rm 360–510 MPa, 27 J at +20 °C guaranteed; slightly weaker than A36 but with impact toughness. S275JR (275 MPa) exceeds A36 on yield. |
| S235J0 | EN (European) | Near | A36 has a higher yield (250 MPa) and no Charpy requirement at all, so it does not substitute where the 0 °C toughness is the reason for the specification. |
| Q235 | GB/T (China) | Near | GB/T 700 Q235B: yield 235 MPa, Rm 370–500 MPa, 27 J at +20 °C. Q255/Q275 are stronger. |
| Q235 | GB/T (China) | Near | A36 yield is 250 MPa with no impact requirement; close on strength, different on quality class. |
| St3sp | GOST (Russia/CIS) | Near | GOST 380 St3sp: yield 245 MPa (≤ 20 mm), Rm 370–480 MPa. |
| E250 | IS (India) | Near | A36 is 250 MPa yield and 400–550 MPa tensile: the same yield, a slightly lower tensile floor and a ceiling that E250 does not have. |
| SS400 | JIS (Japan) | Near | JIS G3101 SS400: yield 245 MPa (≤ 16 mm), Rm 400–510 MPa — the closest Asian match; no chemistry beyond P/S limits. |
| 1018 / 1020 | AISI / SAE | Functional | Bar grades with defined chemistry and no guaranteed yield — what buyers receive for 'A36 round bar' is often 1018/1020 hot-rolled. |
| 1018 | AISI / SAE | Functional | Structural plate/shape with guaranteed 250 MPa yield — the alternative for welded structures; 1018 is a bar product with no guaranteed properties. |
| A572 Grade 50 | ASTM / ASME | Functional | HSLA 345 MPa yield — the upgrade for weight-critical shapes; A992 for W-shapes. |
| A516 Grade 70 | ASTM / ASME | Functional | Structural plate without pressure-vessel quality (grain size, testing, chemistry control) — not accepted for ASME pressure parts except by special provisions. |
| A572 Grade 50 | ASTM / ASME | Functional | 250 MPa carbon steel — the grade A572-50 replaces when weight matters. |
| S275JR | EN (European) | Functional | A36 yield 250 MPa is below 275 MPa; A36 is not a drop-in replacement where the design used fy = 275. |
Identical, near and functional are defined once on the grade index; the reason column below says which limit differs in each case.
A36 in IS (India)
- IS 2062 E250 A — Identical IS 2062 E250 (Fe 410): yield 250 MPa, Rm 410 MPa min, C ≤ 0.23 — the Indian A36.
- E250 — Near A36 is 250 MPa yield and 400–550 MPa tensile: the same yield, a slightly lower tensile floor and a ceiling that E250 does not have.
A36 in ASTM / ASME
- A283 Gr. C / D — Near Lower-strength plate (205 / 230 MPa yield) for tanks and non-critical structures; Grade D is near A36.
- A1011 CS / SS Gr 36 — Near Hot-rolled sheet/strip < 6 mm; SS Grade 36 has the same 250 MPa yield in sheet form.
- A572 Grade 50 — Functional HSLA 345 MPa yield — the upgrade for weight-critical shapes; A992 for W-shapes.
- A516 Grade 70 — Functional Structural plate without pressure-vessel quality (grain size, testing, chemistry control) — not accepted for ASME pressure parts except by special provisions.
- A572 Grade 50 — Functional 250 MPa carbon steel — the grade A572-50 replaces when weight matters.
A36 in BS (superseded British)
- 43A / S275 — Near BS 4360 43A (withdrawn; 275 MPa yield) was the historical UK match; today S275JR.
A36 in DIN (superseded German)
- St37-2 — Near Yield 250 MPa, Rm 400–550 MPa — slightly stronger; the usual US substitute on St37 drawings.
A36 in EN (European)
- S235JR — Near Yield 235 MPa (≤ 16 mm), Rm 360–510 MPa, 27 J at +20 °C guaranteed; slightly weaker than A36 but with impact toughness. S275JR (275 MPa) exceeds A36 on yield.
- S235J0 — Near A36 has a higher yield (250 MPa) and no Charpy requirement at all, so it does not substitute where the 0 °C toughness is the reason for the specification.
- S275JR — Functional A36 yield 250 MPa is below 275 MPa; A36 is not a drop-in replacement where the design used fy = 275.
A36 in GB/T (China)
- Q235 — Near GB/T 700 Q235B: yield 235 MPa, Rm 370–500 MPa, 27 J at +20 °C. Q255/Q275 are stronger.
- Q235 — Near A36 yield is 250 MPa with no impact requirement; close on strength, different on quality class.
A36 in GOST (Russia/CIS)
- St3sp — Near GOST 380 St3sp: yield 245 MPa (≤ 20 mm), Rm 370–480 MPa.
A36 in JIS (Japan)
- SS400 — Near JIS G3101 SS400: yield 245 MPa (≤ 16 mm), Rm 400–510 MPa — the closest Asian match; no chemistry beyond P/S limits.
A36 in AISI / SAE
- 1018 / 1020 — Functional Bar grades with defined chemistry and no guaranteed yield — what buyers receive for 'A36 round bar' is often 1018/1020 hot-rolled.
- 1018 — Functional Structural plate/shape with guaranteed 250 MPa yield — the alternative for welded structures; 1018 is a bar product with no guaranteed properties.
Superseded names for A36
- A7 — ASTM A7 (withdrawn 1967): The predecessor structural steel (33 ksi / 230 MPa yield); A36 replaced it in 1960.
- K02600 — UNS
- SA-36 — ASME BPVC Section II: ASME adoption for non-pressure and limited pressure use (e.g. structural attachments, some vessels to 340 °C).
- Grade 36 — AASHTO M270 / ASTM A709: A709 Grade 36 is the bridge version (with Charpy zones).
- CSA G40.21 300W — Canada: Canadian equivalent (300 MPa yield, slightly stronger).
Key data for A36
Yield250 MPa Plate, shapes, bar ≤ 200 mm (8 in)
Tensile400–550 MPa
Carbon≤ 0.25 %
StandardASTM A36
Full composition, mechanical properties by thickness, heat treatment and applications for A36 →
Verified against ASTM A36/A36M-19. Last checked: September 2026.