309S Stainless Steel Flat Bar
309S is an austenitic heat-resistant stainless steel renowned for its high-temperature strength (up to 980°C), oxidation resistance, and anti-carburization properties.
Key Features of 309S Steel
309S is an austenitic heat-resistant stainless steel renowned for its high-temperature strength (up to 980°C), oxidation resistance, and anti-carburization properties. Key characteristics include:
High-Temperature Performance
Superior oxidation resistance for prolonged use at 980°C.
Excellent creep resistance in industrial furnaces and boilers.
Machinability
Sulfur content (S≤0.03%) enhances Cutting performance and surface finish.
Low-carbon variant 309L (C≤0.03%) minimizes weld-related intergranular corrosion.
Corrosion Resistance
Outperforms 304 stainless steel (0Cr19Ni9) in acidic/alkaline environments.
Performance Comparison with Similar Materials
309S vs 310S
Composition: 310S has higher Cr (24-26%) and Ni (19-22%), enabling higher service temperatures (1150°C).
Strength: Similar tensile strength (309S 515MPa vs 310S 520MPa), but 310S excels in creep resistance.
309S vs 304 (0Cr19Ni9)
309S offers superior heat and corrosion resistance for extreme environments.
Applications
Industrial Furnaces
Burner components, heat treatment racks.
Energy Systems
Boilers, turbine parts.
Chemical Processing
Corrosion-resistant pipelines, reactor linings.
Hot Tags: 309s stainless steel flat bar, China 309s stainless steel flat bar manufacturers, suppliers, factory, 1 4539 material, 1 4541 aisi 321, 310 stainless steel plate, 310S Stainless Steel Wire, High Temperature Stainless Steel Wire, UNS S31008
Global Grade Equivalents
|
Country/Standard |
China (GB) |
USA (ASTM) |
Europe (EN) |
|
309S |
0Cr23Ni13 |
UNS S30908 |
X12CrNi23-13, 1.4833 |
Send Inquiry
