AISI 316L is an austenitic stainless steel alloyed with molybdenum. It offers high corrosion resistance in aggressive environments and high temperatures.
Chemical composition:
| Element | Content, % |
|---|---|
| Chromium | 16-18 |
| Nickel | 10-14 |
| Molybdenum | 2-3 |
| Manganese | 2 |
| Silicon | 1 |
| Carbon | ≤ 0.03 |
| Nitrogen | ≤ 0.10 |
| Phosphorus | ≤ 0.045 |
| Sulfur | ≤ 0.030 |
Characteristics:
- High corrosion resistance:
- in chloride environments, such as seawater.
- to acids, such as sulfuric, nitric, and phosphoric.
- to pitting corrosion.
- to intergranular corrosion.
- Weldability: easily welded using various methods.
- Ductility: easily shaped and formed.
- Strength: high tensile and yield strength.
Mechanical properties:
| Property | Value |
|---|---|
| Tensile strength | 520 MPa |
| Yield strength | 220 MPa |
| Elongation at break | 50% |
| Brinell hardness | 217 HB |
Physical properties:
| Property | Value |
|---|---|
| Density | 7.98 g/cm³ |
| Melting point | 1400°C |
| Thermal conductivity | 16.3 W/m·K |
| Electrical resistivity | 72 μΩm·cm |
Equivalents:
| Country | Equivalent |
|---|---|
| Ukraine | 08Х16Н11М3 |
| European Union | 1.4404 |
| USA | 316L |
Applications:
- Chemical industry: manufacturing tanks, pipes, and fittings for aggressive environments.
- Oil and gas industry: manufacturing parts for drilling equipment and pipelines.
- Food industry: manufacturing containers for storing and transporting food, столовые приборы.
- Medical industry: manufacturing surgical instruments and implants.
- Construction: facade cladding, manufacturing decorative elements.
- Shipbuilding: manufacturing hulls and parts for marine equipment.
Advantages:
- High corrosion resistance
- High-temperature resistance
- Weldability
- Ductility
- Strength
Disadvantages:
- Relatively high cost
- Difficult to machine
Conclusion:
AISI 316L is a versatile stainless steel with high performance characteristics. It is widely used in various industries.