S355MC equivalent grades: ASTM, EN, JIS, GB, DIN
Cross-reference for S355MC across standard systems. Each match is graded so you can see how safe the substitution is. Thermomechanically rolled HSLA steel for cold forming — full S355MC data sheet.
Cross-reference table
| Grade | System | Match | Why / differences |
|---|---|---|---|
| A1011 HSLAS-F Grade 50 | ASTM / ASME | Near | ASTM A1011 High-Strength Low-Alloy with improved Formability, Grade 50 [340]: 340 MPa yield, 410 MPa tensile, inclusion-controlled for bending — the US sheet equivalent. |
| S420MC | EN (European) | Near | Next class in EN 10149-2 (420 MPa) — the usual step up for trailer chassis. |
| S355MC (EN 10149-2) vs S355NC (EN 10149-3) | EN (European) | Near | NC is the normalized-rolled version with the same yield but slightly larger bend radii. |
| Q355 (QStE380TM-type) | GB/T (China) | Near | GB/T 1591 Q355 or the automotive GB/T 3273 grades of 355–380 MPa class. |
| SAPH440 | JIS (Japan) | Near | JIS G3113 hot-rolled automotive structural sheet: yield ≥ 305 MPa, tensile ≥ 440 MPa, good formability. |
| A572 Grade 50 | ASTM / ASME | Functional | Same yield class (345 MPa) as plate/sections, but not thermomechanically rolled and without the guaranteed bend radii. |
| S355J2 | EN (European) | Functional | Normalized/as-rolled structural steel of the same yield; heavier chemistry (C ≤ 0.22), larger bend radii, chosen for plate and sections rather than cold-formed parts. |
| S700MC | EN (European) | Functional | The general cold-forming HSLA grade — roughly half the yield, twice the elongation. |
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.
S355MC in ASTM / ASME
- A1011 HSLAS-F Grade 50 — Near ASTM A1011 High-Strength Low-Alloy with improved Formability, Grade 50 [340]: 340 MPa yield, 410 MPa tensile, inclusion-controlled for bending — the US sheet equivalent.
- A572 Grade 50 — Functional Same yield class (345 MPa) as plate/sections, but not thermomechanically rolled and without the guaranteed bend radii.
S355MC in EN (European)
- S420MC — Near Next class in EN 10149-2 (420 MPa) — the usual step up for trailer chassis.
- S355MC (EN 10149-2) vs S355NC (EN 10149-3) — Near NC is the normalized-rolled version with the same yield but slightly larger bend radii.
- S355J2 — Functional Normalized/as-rolled structural steel of the same yield; heavier chemistry (C ≤ 0.22), larger bend radii, chosen for plate and sections rather than cold-formed parts.
- S700MC — Functional The general cold-forming HSLA grade — roughly half the yield, twice the elongation.
S355MC in GB/T (China)
- Q355 (QStE380TM-type) — Near GB/T 1591 Q355 or the automotive GB/T 3273 grades of 355–380 MPa class.
S355MC in JIS (Japan)
- SAPH440 — Near JIS G3113 hot-rolled automotive structural sheet: yield ≥ 305 MPa, tensile ≥ 440 MPa, good formability.
Superseded names for S355MC
- QStE380TM — SEW 092 (withdrawn): German thermomechanical HSLA grade; direct predecessor with 380 MPa yield.
- FeE355TM — EN 10149-2:1995 (draft names)
- Domex 355 MC — SSAB trade name: Widely used as a generic term for S355MC in Northern Europe.
Key data for S355MC
Full composition, mechanical properties by thickness, heat treatment and applications for S355MC →
Verified against EN 10149-2:2013. Last checked: September 2026.