Alloy 1.4311 is an austenitic stainless steel with a high nitrogen content. The alloy offers good corrosion resistance, particularly against pitting and stress corrosion cracking in chloride-containing environments. It is widely used in the chemical industry, shipbuilding, and food processing.
Chemical composition:
- Carbon content: ≤0.030%
- Silicon content: ≤1.00%
- Manganese: ≤2.00%
- Phosphorus content: ≤0.040%
- Sulfur content: ≤0.015%
- Chromium content: 17.0-19.5%
- Nickel content: 6.0-8.0%
- Nitrogen content: 0.15-0.25%
Mechanical properties:
- Tensile strength: ≥500 MPa
- Elongation: ≥40%
- Hardness (HB): ≤215
Physical properties:
- Density: 7.9 g/cm³
- Melting point: 1400-1450°C
- Thermal conductivity: 15 W/(m*K)
- Electrical conductivity: 0.75×10^6 S/m
- Specific heat capacity: 500 J/(kg*K)
Processing properties:
- Weldability: good
- Machinability: good
- Formability: good
Corrosion resistance:
- Resistant to pitting and stress corrosion cracking in chloride-containing environments
- Good resistance to general corrosion in acidic and alkaline environments
Applications:
- Chemical industry
- shipbuilding
- Food processing
- Medical technology
- Water treatment
Please note that technical specifications may vary depending on the alloy composition, manufacturing process, and conditions. The values provided are for guidance only and should not be considered precise.
