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310 Stainless Sheet
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310 stainless sheet is a high-temperature austenitic stainless steel designed for excellent oxidation resistance and strength at elevated temperatures. It contains higher chromium and nickel content than standard 300-series grades, making it suitable for extreme heat environments.
The material is commonly known as 310 stainless steel.
1. Chemical Composition of 310 Stainless Steel
The high chromium and nickel levels are the key to its superior heat resistance.
Typical Chemical Composition (%)
| Element | Content (%) |
|---|---|
| Chromium (Cr) | 24.0 – 26.0 |
| Nickel (Ni) | 19.0 – 22.0 |
| Carbon (C) | ≤ 0.25 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 1.5 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.03 |
| Iron (Fe) | Balance |
High chromium improves oxidation resistance, while high nickel enhances structural stability at high temperatures.
2. Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 520 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 217 HB |
310 stainless steel maintains strength and stability at temperatures up to 1000–1100°C in continuous service.
3. Key Performance Characteristics
3.1 Excellent High-Temperature Resistance
Continuous service up to approximately 1100°C
Strong resistance to scaling and oxidation
3.2 Good Corrosion Resistance
Performs well in oxidizing and moderately carburizing environments.
3.3 Good Fabrication Performance
Can be welded using common austenitic welding techniques
Good formability in annealed condition
3.4 Thermal Stability
High nickel content reduces risk of structural instability at elevated temperatures.
4. Common Applications of 310 Stainless Sheet
4.1 Furnace and Heat Treatment Equipment
Furnace linings
Burner components
Heat treatment trays
Radiant tubes
4.2 Petrochemical Industry
High-temperature piping
Thermal processing equipment
Refinery components
4.3 Power Generation
Boiler parts
Superheater components
High-temperature structural parts
4.4 Industrial Heating Systems
Kilns
Incinerators
Combustion chambers
5. Difference Between 310 and 301 Stainless Steel
301 stainless steel is mainly designed for strength through cold working, while 310 is designed for extreme heat resistance.
Composition Comparison
| Grade | Chromium (%) | Nickel (%) | Main Feature |
|---|---|---|---|
| 301 | 16–18 | 6–8 | High work hardening |
| 310 | 24–26 | 19–22 | High-temperature resistance |
Performance Difference
| Aspect | 301 | 310 |
|---|---|---|
| Heat Resistance | Moderate | Excellent (up to 1100°C) |
| Work Hardening | Very High | Moderate |
| Strength After Cold Work | Very High | Not primary feature |
| Typical Use | Springs, clips | Furnace parts |
Application Difference
301 stainless sheet → Springs, automotive trim, structural reinforcement, precision components
310 stainless sheet → Furnaces, boilers, high-temperature industrial equipment



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