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.

Last updated 19 September 2026

For A36 the exact matches are IS 2062 E250 A, and material bought as one is accepted as the other without deviation. A283 Gr. C / D, A1011 CS / SS Gr 36, 43A / S275 and 8 more sit one step away, differ in a strength minimum or in the quality class rather than in the metallurgy. At the functional level 1018 / 1020, 1018, A572 Grade 50 and 4 more serve as a replacement once the design has been re-run. Counted by system: 2 in IS (India), 6 in ASTM / ASME, 1 in BS (superseded British), 1 in DIN (superseded German), 3 in EN (European), 2 in GB/T (China), 1 in GOST (Russia/CIS), 1 in JIS (Japan), 2 in AISI / SAE.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

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.
• A53 Grade B — Functional The structural plate and shape specification at 250 MPa yield. Relevant because A53 Grade B pipe is widely used as a structural member — but structural pipe is properly specified to ASTM A500 or A501, not to A53, and the allowable stresses differ.
• 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A36 in BS (superseded British)

• 43A / S275 — Near BS 4360 43A (withdrawn; 275 MPa yield) was the historical UK match; today S275JR.

A36 in DIN (superseded German)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

Full composition, mechanical properties by thickness, heat treatment and applications for A36 →

Verified against ASTM A36/A36M-19. Last checked: September 2026.