S355J2W equivalent grades: ASTM, EN, JIS, GB, DIN
Cross-reference for S355J2W across standard systems. Each match is graded so you can see how safe the substitution is. Weathering (atmospheric-corrosion-resistant) structural steel, −20 °C impact — full S355J2W data sheet.
Cross-reference table
| Grade | System | Match | Why / differences |
|---|---|---|---|
| A588 Grade A / B | ASTM / ASME | Near | ASTM A588: 345 MPa yield, 485 MPa tensile, Cu-Cr-Ni(-V) weathering steel for bridges — the US Corten B; Grade A is Cr-rich, Grade B Ni-rich, both within S355J2W chemistry ranges. |
| S235J2W | EN (European) | Near | Lower-strength weathering grade (235 MPa) for façades and non-critical members. |
| Q355NH | GB/T (China) | Near | GB/T 4171 weathering structural steel, 355 MPa yield; Q355NH (Cu-Cr-Ni) ≈ S355J2W, Q355GNH ≈ WP type. |
| 10ХНДП / 14ХГНДЦ | GOST (Russia/CIS) | Near | GOST 19281 weathering (Cu-Ni-P and Cu-Cr-Ni) structural steels of 345–355 MPa class. |
| SMA490BW / CW | JIS (Japan) | Near | JIS G3114 welded structural weathering steel, 355 MPa yield (≤ 16 mm), 490–610 MPa tensile; B = 0 °C, C = −5 °C impact. |
| A242 Type 1 | ASTM / ASME | Functional | ASTM A242: the original Cu-P weathering steel (345 MPa ≤ 19 mm) — closer to S355J2WP; used for sheet and light sections. |
| A606 Type 4 | ASTM / ASME | Functional | ASTM A606 Type 4 sheet and strip with enhanced corrosion resistance (345 MPa) — the thin-gauge façade equivalent. |
| S355J2 | EN (European) | Functional | Same mechanical properties without the weathering alloying — use where the steel is painted or galvanized. |
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.
S355J2W in ASTM / ASME
- A588 Grade A / B — Near ASTM A588: 345 MPa yield, 485 MPa tensile, Cu-Cr-Ni(-V) weathering steel for bridges — the US Corten B; Grade A is Cr-rich, Grade B Ni-rich, both within S355J2W chemistry ranges.
- A242 Type 1 — Functional ASTM A242: the original Cu-P weathering steel (345 MPa ≤ 19 mm) — closer to S355J2WP; used for sheet and light sections.
- A606 Type 4 — Functional ASTM A606 Type 4 sheet and strip with enhanced corrosion resistance (345 MPa) — the thin-gauge façade equivalent.
S355J2W in EN (European)
- S235J2W — Near Lower-strength weathering grade (235 MPa) for façades and non-critical members.
- S355J2 — Functional Same mechanical properties without the weathering alloying — use where the steel is painted or galvanized.
S355J2W in GB/T (China)
- Q355NH — Near GB/T 4171 weathering structural steel, 355 MPa yield; Q355NH (Cu-Cr-Ni) ≈ S355J2W, Q355GNH ≈ WP type.
S355J2W in GOST (Russia/CIS)
- 10ХНДП / 14ХГНДЦ — Near GOST 19281 weathering (Cu-Ni-P and Cu-Cr-Ni) structural steels of 345–355 MPa class.
S355J2W in JIS (Japan)
- SMA490BW / CW — Near JIS G3114 welded structural weathering steel, 355 MPa yield (≤ 16 mm), 490–610 MPa tensile; B = 0 °C, C = −5 °C impact.
Superseded names for S355J2W
- WTSt52-3 — DIN 17100 / SEW 087: German weathering structural steel; direct predecessor.
- S355J2G1W / S355J2G2W — EN 10155:1993: G1 = as-rolled, G2 = normalized; merged into S355J2W in EN 10025-5:2004.
- Fe510D2K1 — EN 10155:1993 (Fe designation)
- WR50B / WR50C — BS 4360: British weathering grades.
Key data for S355J2W
Full composition, mechanical properties by thickness, heat treatment and applications for S355J2W →
Verified against EN 10025-5:2019. Last checked: September 2026.