304LN Stainless Steel Plate
Grade: 304LN
Thickness: 3.0mm-200mm
Width: 1.5m/2.0m/2.2m or as client’s requirement.
Standard: ASTM A240/A240M, JIS G4304, JISG 4305, EN 10088/3
Finish: No.1, Polished
- Fast Shipping / Ready Stock
- ISO 9001 Direct Factory
- Custom Cutting & Processing
- 100% MTC & SGS Inspection Supported
AISI 304LN (UNS S30453) is an optimized variant of the classic 304 family that combines two important improvements: extra-low carbon content (maximum 0.03%) and intentional nitrogen addition. The low carbon provides excellent resistance to intergranular corrosion after welding, while the nitrogen significantly increases yield and tensile strength compared with standard 304L.
This dual enhancement makes AISI 304LN particularly suitable for welded constructions that also require higher mechanical strength. The grade remains fully austenitic, non-magnetic in the annealed condition, and offers good formability and toughness.
AISI 304LN offers corrosion resistance essentially equivalent to standard AISI 304 and 304L in most environments. It performs well in atmospheric conditions, fresh water, food products and many mild to moderate chemical media.
The low carbon content provides excellent resistance to intergranular corrosion after welding. The nitrogen addition has a neutral to slightly beneficial effect on pitting resistance. In chloride-containing service, however, AISI 304LN remains susceptible to pitting and stress corrosion cracking. For such conditions, we recommends upgrading to a240 316l or a240 2205.
| Chemical composition | 304LN (UNS S30453/ EN1.4311) |
| Carbon, Max% | 0.03 |
| Manganese, Max% | 2 |
| Phosphorus, Max% | 0.045 |
| Sulphur, Max% | 0.03 |
| Silicon, Max% | 0.75 |
| Chromium Range% | 18.0-20.0 |
| Nickel Range% | 8.0-10.5 |
| Nitrogen Range% | 0.1-0.16 |
| Mechanical Properties | 304N |
| Tensile Min | 75 ksi |
| Yield Min | 30 ksi |
| Elongation Min | 40% |
| Hardness Max | 95 HRB |
- Chemical industry
- Natural gas denitrogenation and decarburization columns
- Petrochemical industry
- Liquid gas production and storage
- Space equipment testing facilities
- Tanks and containers for rail or road transportation (higher mechanical properties than 304L)
- Building infrastructures
AISI 304LN (UNS S30453) is an optimized variant of the classic 304 family that combines two important improvements: extra-low carbon content (maximum 0.03%) and intentional nitrogen addition. The low carbon provides excellent resistance to intergranular corrosion after welding, while the nitrogen significantly increases yield and tensile strength compared with standard 304L.
This dual enhancement makes AISI 304LN particularly suitable for welded constructions that also require higher mechanical strength. The grade remains fully austenitic, non-magnetic in the annealed condition, and offers good formability and toughness.
AISI 304LN offers corrosion resistance essentially equivalent to standard AISI 304 and 304L in most environments. It performs well in atmospheric conditions, fresh water, food products and many mild to moderate chemical media.
The low carbon content provides excellent resistance to intergranular corrosion after welding. The nitrogen addition has a neutral to slightly beneficial effect on pitting resistance. In chloride-containing service, however, AISI 304LN remains susceptible to pitting and stress corrosion cracking. For such conditions, we recommends upgrading to a240 316l or a240 2205.
| Chemical composition | 304LN (UNS S30453/ EN1.4311) |
| Carbon, Max% | 0.03 |
| Manganese, Max% | 2 |
| Phosphorus, Max% | 0.045 |
| Sulphur, Max% | 0.03 |
| Silicon, Max% | 0.75 |
| Chromium Range% | 18.0-20.0 |
| Nickel Range% | 8.0-10.5 |
| Nitrogen Range% | 0.1-0.16 |
| Mechanical Properties | 304N |
| Tensile Min | 75 ksi |
| Yield Min | 30 ksi |
| Elongation Min | 40% |
| Hardness Max | 95 HRB |
- Chemical industry
- Natural gas denitrogenation and decarburization columns
- Petrochemical industry
- Liquid gas production and storage
- Space equipment testing facilities
- Tanks and containers for rail or road transportation (higher mechanical properties than 304L)
- Building infrastructures
