HSLA-80 / ASTM A710 Grade A Manufacturer & Supplier
Copper-precipitation strengthened HSLA plate that reaches 550 MPa yield with very low carbon, so it welds without preheat. Adopted for naval structures specifically to cut the welding cost of high strength hulls.
UNS: ASTM A710 Grade A · MIL-S-24645 | Category: HSLA Structural Steel
Size Range
Outer Diameter: 6 mm to 75 mm thick · up to 3000 mm wide
Chemical Composition (%)
| C | Cu | Ni | Nb |
|---|---|---|---|
| 0.07 max | 1.00-1.30 | 0.70-1.00 | 0.02-0.06 |
Mechanical Properties
- Yield Strength
- 550 MPa min (Class 3)
- Tensile Strength
- 620 MPa min
- Elongation
- 20% min
- Impact
- 48 J at -34 °C
Applicable Standards
- ASTM A131
- IS 8500
- IACS W11
- ASTM A370
- EN 10204 3.1
Applications
- Naval structural and deck plate
- Lightweight protected structures
- Crane and lifting structures
- Launcher and mount structures
- Shock-resistant foundations
Industries Served
- Naval Shipbuilding
- Marine & Offshore
- Defence MRO
- Power & Energy
- Heavy Engineering
- Ordnance & Ammunition
Equivalent Grades
- ASTM A710 Grade A
- ASTM A710 Grade A
- HSLA-80
- HSLA-80
- HSLA-100 (Class 3)
- HSLA-100 (Class 3)
- MIL-S-24645
- MIL-S-24645