AISI 304 Cu is an austenitic stainless steel that contains chromium, nickel, copper, and other elements. This steel has high corrosion resistance, strength, weldability, and machinability. AISI 304 Cu is used in a wide range of industries, including the food industry, chemical industry, oil and gas industry, construction, and mechanical engineering.
Chemical composition:
| Element | Content, % |
|---|---|
| Chromium (Cr) | 18.0-20.0 |
| Nickel (Ni) | 8.0-10.5 |
| Copper (Cu) | 1.0-2.0 |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Carbon (C) | 0.08 max |
| Nitrogen (N) | 0.10 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
Characteristics:
- Corrosion resistance: High corrosion resistance in atmospheric conditions, fresh water, many chemicals, and food products.
- Weldability: Easily welded by all standard methods.
- Machinability: Good machinability.
- Strength: High strength and hardness.
- Heat resistance: Resistant to oxidation at temperatures up to 870°C.
Mechanical properties:
| Property | Value |
|---|---|
| Tensile strength | 515-758 MPa |
| Yield strength | 205-310 MPa |
| Elongation at break | 50-60% |
| Brinell hardness | 143-207 HB |
Physical properties:
| Property | Value |
|---|---|
| Density | 7.9 g/cm³ |
| Melting point | 1400-1450°C |
| Thermal conductivity | 16.2 W/m·K |
| Electrical resistance | 72.4 μΩm |
Analogs of AISI 304 Cu in different countries:
| Country | Standard | Analog | Chemical composition (Cr-Ni-Cu-Mn-Si-C) |
|---|---|---|---|
| USA | AISI | 304 Cu | 18-20-1-2-1-0.08 |
| European Union | EN | 1.4567 | 17-19-1-2-1-0.07 |
| Ukraine | ДСТУ | 08Х18Н10Т | 18-10-1.5-2-1-0.08 |
| Japan | JIS | SUS304Cu | 18-8-1-2-1-0.08 |
Applications:
- Food industry: Utensils, cutlery, containers for storing and processing food products.
- Chemical industry: Tanks, pipes, pumps, valves, and other equipment.
- Oil and gas industry: Pipes, casing, tanks, and other equipment.
- Construction: Reinforcement, facade panels, roofing materials, fences, and other elements.
- Mechanical engineering: Machine parts, housings, tools, and other equipment.