Stainless Steel 1.4315 / AISI 301LN
General Technical Characteristics
Stainless steel 1.4315 / AISI 301LN is an austenitic corrosion-resistant steel with reduced carbon content and nitrogen addition. This grade was developed to provide increased strength and improved mechanical properties compared to standard AISI 301 steel.
Due to the presence of nitrogen, AISI 301LN stainless steel offers high strength, excellent ductility, and good corrosion resistance. The material is characterized by good formability and a strong ability to work-harden during cold deformation.
Steel 1.4315 is widely used in structures where a combination of high strength, corrosion resistance, and long-term operational reliability is required.
Applications
Stainless steel 1.4315 / AISI 301LN is used in various industrial sectors:
- transport and railway engineering
- automotive industry
- production of springs and elastic components
- architectural structures
- manufacturing of thin sheet parts
- equipment components operating under load
- production of fasteners and structural components
Due to its high strength, AISI 301LN is used for manufacturing parts subjected to significant mechanical loads.
Features and Advantages
Key advantages of stainless steel 1.4315:
- high strength and wear resistance
- excellent formability during cold working
- high work-hardening capability during deformation
- good corrosion resistance
- stable mechanical properties
- durability and reliability in operation
These characteristics make AISI 301LN a widely used material for structural and engineering applications.
Chemical Composition
| Element | Content % |
|---|---|
| Chromium (Cr) | 16.5–18.5 |
| Nickel (Ni) | 6–8 |
| Nitrogen (N) | 0.10–0.16 |
| Manganese (Mn) | ≤ 2 |
| Silicon (Si) | ≤ 1 |
| Carbon (C) | ≤ 0.03 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.015 |
| Iron (Fe) | balance |
Mechanical Properties
Main mechanical properties of AISI 301LN steel:
- Tensile Strength (Rm): 650–950 MPa
- Yield Strength (Rp0.2): ≥ 300 MPa
- Elongation: ≥ 35 %
- Hardness: up to 220 HB
High strength and the ability to harden during cold deformation make stainless steel 1.4315 / AISI 301LN an excellent choice for manufacturing components operating under increased loads.
