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310S Austenitic Chromium-Nickel Stainless Steel Round Bars
- High-Temperature Performance:Continuous service up to 1150°C with exceptional oxidation resistance.
- Corrosion Resistance:Superior resistance to sulfidation, carburization, and acidic environments.
- Mechanical Strength:High creep strength and thermal stability due to 24-26% Cr and 19-22% Ni.
- Material Form:Available as hot-rolled, cold-finished, or forged round bars (Diameter: 1mm–480mm).
Chemical Composition (wt%)
Element | Content (%) | Key Role |
Carbon (C) | ≤0.08 | Reduces brittleness |
Chromium (Cr) | 24.00–26.00 | Enhances oxidation resistance |
Nickel (Ni) | 19.00–22.00 | Stabilizes austenitic structure |
Manganese (Mn) | ≤2.00 | Improves ductility |
Silicon (Si) | ≤1.50 | Deoxidation agent |
Phosphorus (P) | ≤0.045 | Minimizes segregation |
Sulfur (S) | ≤0.030 | Controls machinability |
Surface Treatment
- Hot-Rolled:Scale-free surface with pickling/passivation.
- Cold-Drawn:Smooth finish for precision applications.
- Black Bars:Oxide-coated for cost-effective industrial use.
Why Choose Us ?
- Certified Quality:ASTM A276/A479, JIS SUS310S, EN 1.4845.
- Custom Sizing:Stock includes Φ1mm–480mm with custom cutting.
- Fast Delivery:5,000+ tons in warehouse, global shipping.
Applications & Industries
Aerospace:
High-power density actuators.
Electronics:
Precision sensors & MEMS components.
Energy:
Magnetic coupling devices for turbines.
Frequently Asked Questions
Q1: Maximum operating temperature?
Yes, using TIG/GTAW methods with 310 filler wire.
Q2: Minimum order quantity?
1150°C continuous; 1200°C short-term.
Q3: How to improve machinability?
Use high-thermal-conductivity tools (e.g., carbide) with sharp edges.
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