304LN Stainless Steel Seamless Pipe
Grade: 304LN/S30453
Size:
Seamless: 6mm*1mm-720mm*50mm
Coiled: 4mm*0.5mm-32mm*3mm
Standard: ASTM A312, ASTM A213 etc.
Surface: No.1(Pickling), Bright(Polished)
- Fast Shipping / Ready Stock
- ISO 9001 Direct Factory
- Custom Cutting & Processing
- 100% MTC & SGS Inspection Supported
304LN Stainless Steel Pipe is a nitrogen-strengthened low-carbon austenitic grade combining excellent corrosion resistance, good weldability, and higher yield strength than conventional 304L. Its controlled nitrogen content improves strength while maintaining useful ductility and toughness. The grade is well suited to demanding process, heat-exchanger, chemical, food, and nuclear service where reliable corrosion resistance and mechanical performance are required.
Chemical Composition
| Element | Content (wt. %) |
| C | ≤0.030 |
| Si | ≤1.00 |
| Mn | ≤2.00 |
| P | ≤0.045 |
| S | ≤0.030 |
| Cr | 18.0–20.0 |
| Ni | 8.0–12.0 |
| Mo | — |
| N | 0.10–0.16 |
| Other | Fe: Balance |
Mechanical Properties
| Condition | Tensile Strength | Yield Strength (0.2%) | Elongation | Hardness |
| Solution annealed | ≥515 | ≥205 | ≥40 | ≤217 HB / ≤95 HRB |
- Heat exchangers
- Chemical processing
- Food processing
- Petrochemical equipment
- Nuclear and cryogenic equipment
- Industrial piping systems


304LN Stainless Steel Pipe is a nitrogen-strengthened low-carbon austenitic grade combining excellent corrosion resistance, good weldability, and higher yield strength than conventional 304L. Its controlled nitrogen content improves strength while maintaining useful ductility and toughness. The grade is well suited to demanding process, heat-exchanger, chemical, food, and nuclear service where reliable corrosion resistance and mechanical performance are required.
Chemical Composition
| Element | Content (wt. %) |
| C | ≤0.030 |
| Si | ≤1.00 |
| Mn | ≤2.00 |
| P | ≤0.045 |
| S | ≤0.030 |
| Cr | 18.0–20.0 |
| Ni | 8.0–12.0 |
| Mo | — |
| N | 0.10–0.16 |
| Other | Fe: Balance |
Mechanical Properties
| Condition | Tensile Strength | Yield Strength (0.2%) | Elongation | Hardness |
| Solution annealed | ≥515 | ≥205 | ≥40 | ≤217 HB / ≤95 HRB |
- Heat exchangers
- Chemical processing
- Food processing
- Petrochemical equipment
- Nuclear and cryogenic equipment
- Industrial piping systems






