0Cr18Ni9 Stainless Steel: A Versatile Austenitic Grade
0Cr18Ni9, also known as 304 stainless steel in international standards, is one of the most widely used austenitic stainless steel grades. This grade contains approximately 18% chromium and 9% nickel, creating an excellent combination of corrosion resistance and mechanical properties.
Chemical Composition:
- Chromium: 17.5-19.5%
- Nickel: 8.0-10.0%
- Carbon: ≤0.08%
- Silicon: ≤1.0%
- Manganese: ≤2.0%
Key Properties:
- Corrosion Resistance
- Excellent resistance to atmospheric corrosion
- Good performance in mild chemical environments
- Superior resistance to oxidation
- Mechanical Properties
- Yield strength: ≥205 MPa
- Tensile strength: 520-720 MPa
- Elongation: ≥40%
- Good ductility and formability
Applications:
- Food Industry
- Processing equipment
- Storage tanks
- Kitchen equipment
- Chemical Industry
- Pressure vessels
- Piping systems
- Heat exchangers
- Architectural Applications
- Building facades
- Handrails
- Decorative elements
- Consumer Goods
- Kitchen utensils
- Home appliances
- Sinks and cookware
Manufacturing Characteristics:
- Excellent weldability
- Good machinability
- Suitable for various forming operations
- Can be polished to high surface finishes
Heat Treatment:
- Solution treatment temperature: 1050-1100°C
- Rapid cooling to prevent carbide precipitation
- Non-magnetic in annealed condition
The versatility and reliable performance of 0Cr18Ni9 make it a preferred choice across various industries. Its combination of corrosion resistance, formability, and cost-effectiveness continues to drive its widespread adoption in both industrial and consumer applications.