Stainless Steel 304
CNC MachiningSheet Metal
Overview
304 stainless steel is the most common stainless steel. It contains 18% chromium and 8% nickel. It is an austenitic stainless steel that is non-magnetic and cannot be hardened by heat treatment. It has excellent corrosion resistance and is widely used in food processing, chemical, and medical industries.
Mechanical Properties
| Tensile Strength | ≥ 515 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Modulus of Elasticity | 193 GPa |
| Hardness | 70-90 HRB |
Physical Properties
| Density | 8,000 kg/m³ |
| Melting Point | 1,400-1,450°C |
| Specific Heat Capacity | 0.50 J/g·K |
| Thermal Conductivity | 16.2 W/m·K |
| Coefficient of Thermal Expansion | 17.3 × 10⁻⁶ K⁻¹ |
| Electrical Resistivity | 7.2 × 10⁻⁷ Ω·m |
Applications
Kitchen equipment
Food processing equipment
Medical devices
Chemical containers
Architectural trim
Marine hardware
Advantages
- Excellent corrosion resistance
- Food safe
- Easy to clean
- Non-magnetic
- Good formability
- Weldable
Limitations
- Work hardens quickly
- Lower strength than other stainless grades
- Not suitable for chloride environments
- More expensive than carbon steel
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