DMR 249A Naval-Grade Steel Manufacturer & Supplier
The Indian naval construction grade: a low carbon, micro-alloyed HSLA steel developed for warship hulls, with good low temperature toughness and weldability without preheat in normal thicknesses.
UNS: DMR 249A · IS 8500 family | Category: Naval & Shipbuilding Steel
Size Range
Outer Diameter: 5 mm to 60 mm thick · up to 3000 mm wide
Chemical Composition (%)
| C | Mn | Nb+V+Ti | S |
|---|---|---|---|
| 0.12 max | 1.30-1.70 | micro-alloyed | 0.010 max |
Mechanical Properties
- Yield Strength
- 390 MPa min
- Tensile Strength
- 510-690 MPa
- Elongation
- 22% min
- Impact
- 50 J at -40 °C
Applicable Standards
- ASTM A131
- IS 8500
- IACS W11
- ASTM A370
- EN 10204 3.1
Applications
- Warship and patrol vessel hull plate
- Bulkheads, decks and superstructure
- Submarine support structures
- Naval yard fabrication packages
- Defence infrastructure structural steel
Industries Served
- Naval Shipbuilding
- Marine & Offshore
- Defence MRO
- Power & Energy
- Heavy Engineering
- Ordnance & Ammunition
Equivalent Grades
- DMR 249A
- DMR 249A
- IS 8500 Fe 490
- IS 8500 Fe 490
- ASTM A131 EH36 class
- ASTM A131 EH36 class