AH36 / DH36 / EH36 Shipbuilding Steel Manufacturer & Supplier
Classification-society higher strength hull steel. The A, D and E suffixes are impact test temperatures at 0, -20 and -40 °C — the grade letter, not the strength, is what usually decides acceptance.
UNS: ASTM A131 / IACS W11 | Category: Naval & Shipbuilding Steel
Size Range
Outer Diameter: 5 mm to 100 mm thick · up to 3000 mm wide
Chemical Composition (%)
| C | Mn | Si | Nb/V |
|---|---|---|---|
| 0.18 max | 0.90-1.60 | 0.10-0.50 | micro-alloyed |
Mechanical Properties
- Yield Strength
- 355 MPa min
- Tensile Strength
- 490-620 MPa
- Elongation
- 21% min
- Impact
- 34 J at 0 / -20 / -40 °C by grade
Applicable Standards
- ASTM A131
- IS 8500
- IACS W11
- ASTM A370
- EN 10204 3.1
Applications
- Hull and deck plate for naval auxiliaries
- Superstructure and bulkhead fabrication
- Landing craft and support vessel structures
- Shipyard block assembly packages
- Offshore and harbour structures
Industries Served
- Naval Shipbuilding
- Marine & Offshore
- Defence MRO
- Power & Energy
- Heavy Engineering
- Ordnance & Ammunition
Equivalent Grades
- ASTM A131 AH36
- ASTM A131 AH36
- DH36
- DH36
- EH36
- EH36
- IACS W11
- IACS W11
- EN 10225 S355G class
- EN 10225 S355G class