AH32 vs AH36 steel plate
Both are IACS higher-strength hull structural steel grades from the same 0°C impact-test class, and both are held in stock at the WISCO mill — the difference between them is minimum yield strength, not toughness.
Spec comparison
| Property | AH32 | AH36 |
|---|---|---|
| Min. yield ReH | 315 MPa | 355 MPa |
| Tensile Rm | 440–570 MPa | 490–630 MPa |
| Elongation A5 | 22% | 21% |
| Impact test temp. | 0 °C | 0 °C |
| Availability | Stock / to order | Core stock |
How to choose
AH32 is stocked at the mill on a mixed basis (stock plus made-to-order runs), while AH36 is held as core stock — the larger, most consistently available line. The 40 MPa higher minimum yield on AH36 (355 MPa against 315 MPa) also allows a thinner plate to carry the same structural load. Which one your project actually needs is set by the classification society's rule calculation for that structural member, not by preference — check the vessel's structural drawing before substituting one grade for the other.
Tell us the grade, thickness and tonnage.
Send grade, thickness, dimensions and tonnage. You get availability, price and a lead time, normally within 24 hours.