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Description
Chemical Composition and Mechanical Properties of SUS310S Stainless Steel
SUS310S is an austenitic stainless steel with the following composition and properties:
| Element | Percentage |
|---|---|
| Chromium | 24.0-26.0% |
| Nickel | 19.0-22.0% |
| Carbon | ≤0.08% |
| Silicon | ≤1.50% |
| Manganese | ≤2.00% |
| Phosphorus | ≤0.045% |
| Sulfur | ≤0.030% |
Mechanical Properties:
| Property | Value |
|---|---|
| Tensile Strength (min) | 520 MPa |
| Yield Strength (min) | 205 MPa |
| Elongation (min) | 40% |
| Density | 7.98 g/cm³ |
| Melting Point | 1400°C |
Applications and Industries Using SUS310S
SUS310S is widely used in high-temperature applications:
- Furnaces and heat treatment equipment
- Chemical processing plants
- Petroleum refining catalytic recovery systems
- Power generation equipment
- Heat exchangers
- Food processing industry
- Aerospace and defense applications
Manufacturing Process of SUS310S Stainless Steel
The manufacturing process of SUS310S typically involves:
- Melting raw materials in an electric furnace
- Refining the molten metal
- Continuous casting into slabs
- Hot rolling to reduce thickness
- Cold rolling to achieve final dimensions
- Solution annealing at 1100-1150°C followed by rapid cooling
Comparison of SUS310S with Other Stainless Steel Grades
| Grade | Carbon Content | Oxidation Resistance | Weldability |
|---|---|---|---|
| SUS310S | ≤0.08% | Up to 1150°C | Excellent |
| SUS309S | ≤0.08% | Up to 1038°C | Excellent |
| SUS304 | ≤0.08% | Up to 870°C | Excellent |
SUS310S offers superior oxidation resistance and high-temperature strength compared to other austenitic grades.
Heat Treatment and Corrosion Resistance of SUS310S
SUS310S exhibits excellent corrosion resistance in high-temperature environments:
- Resists oxidation up to 1150°C in continuous service
- Suitable for intermittent service up to 1040°C
- Resistant to carburization and reducing environments
Heat treatment:
- Solution annealing: 1100-1150°C, followed by rapid cooling
- Stress relief annealing may be performed at lower temperatures
At HL Steel Company, we offer high-quality SUS310S stainless steel products tailored to meet your specific industrial needs, ensuring superior performance in high-temperature applications.
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