S250GD equivalent grades: ASTM, EN, JIS, GB, DIN
S250GD is hot-dip coated structural steel, guaranteed 250 MPa yield specified in EN 10346. Every grade in the database that can stand in for it is listed below, drawn from 5 standard systems, each with the reason it does or does not match exactly. The full S250GD data sheet carries the composition and mechanical tables.
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S250GD is cross-certified with S250GD+Z, IS 277 Grade 250: the composition windows overlap closely enough that one certificate satisfies the other. SS Grade 37 (A653), S280GD, SGC340 differ by one requirement, which is a line on the order rather than a redesign. S350GD, DX51D, S235JR and 1 more serve the same purpose without being the same steel, so a substitution there needs the design re-checked rather than the certificate. Counted by system: 1 in GB/T (China), 1 in IS (India), 1 in ASTM / ASME, 5 in EN (European), 1 in JIS (Japan).
Cross-reference table
| Grade | System | Match | Why / differences |
|---|---|---|---|
| S250GD+Z | GB/T (China) | Identical | GB/T 2518 adopts the EN designation (also listed as 250 by yield). |
| IS 277 Grade 250 | IS (India) | Identical | Indian galvanized sheet with 250 MPa yield. |
| SS Grade 37 (A653) | ASTM / ASME | Near | ASTM A653 Structural Steel Grade 37 [255]: 255 MPa yield, 360 MPa tensile — the closest US structural galvanized grade; SS Grade 33 [230] sits just below. |
| S280GD | EN (European) | Near | Next class up (280 MPa); the common purlin grade when S250GD is not stocked. |
| SGC340 | JIS (Japan) | Near | JIS G3302 SGC340: yield ≥ 245 MPa, tensile ≥ 340 MPa, A ≥ 20 % — Japanese structural galvanized. |
| S350GD | EN (European) | Functional | Same chemistry family, 350 MPa yield; used where span tables require it. |
| DX51D | EN (European) | Functional | Same substrate family without a guaranteed yield — for bending and profiling that is not load-bearing. |
| S235JR | EN (European) | Functional | Uncoated hot-rolled structural steel of similar strength for members that will be post-galvanized. |
| DX52D | EN (European) | Functional | Same standard and coatings but a structural grade with a 250 MPa minimum yield — specified when the sheet carries load rather than being formed. |
Identical, near and functional are defined once on the grade index; the reason column below says which limit differs in each case.
S250GD in GB/T (China)
- S250GD+Z — Identical GB/T 2518 adopts the EN designation (also listed as 250 by yield).
S250GD in IS (India)
- IS 277 Grade 250 — Identical Indian galvanized sheet with 250 MPa yield.
S250GD in ASTM / ASME
- SS Grade 37 (A653) — Near ASTM A653 Structural Steel Grade 37 [255]: 255 MPa yield, 360 MPa tensile — the closest US structural galvanized grade; SS Grade 33 [230] sits just below.
S250GD in EN (European)
- S280GD — Near Next class up (280 MPa); the common purlin grade when S250GD is not stocked.
- S350GD — Functional Same chemistry family, 350 MPa yield; used where span tables require it.
- DX51D — Functional Same substrate family without a guaranteed yield — for bending and profiling that is not load-bearing.
- S235JR — Functional Uncoated hot-rolled structural steel of similar strength for members that will be post-galvanized.
- DX52D — Functional Same standard and coatings but a structural grade with a 250 MPa minimum yield — specified when the sheet carries load rather than being formed.
S250GD in JIS (Japan)
- SGC340 — Near JIS G3302 SGC340: yield ≥ 245 MPa, tensile ≥ 340 MPa, A ≥ 20 % — Japanese structural galvanized.
Superseded names for S250GD
- FeE250G — EN 10147:1992: Structural galvanized designation before the S…GD names (EN 10147:2000).
- StE250-2Z — DIN 17162 (withdrawn): German structural galvanized grade; ≈ S250GD+Z.
- Z25 / Z28 — BS 2989: British structural galvanized qualities by yield in kgf/mm².
Key data for S250GD
Full composition, mechanical properties by thickness, heat treatment and applications for S250GD →
Verified against EN 10346:2015. Last checked: September 2026.