STAINLESS STEEL SEAMLESS PIPE UNS 30815 253MA 1.4835 PIPE
253MA is a high-temperature austenitic stainless steel.
253MA is an austenitic stainless steel known for its excellent resistance to high-temperature oxidation and good creep strength.
Chemical Composition of ASTM A312 253MA Stainless Steel Seamless Pipe
| Grade | C max | Si max | Mn max | P max | S max | Cr | Ni | Mo | N |
| UNS S30815 | 0.05~0.10 | 1.4~2.0 | 0.80 | 0.030 | 0.030 | 20.0-22.0 | 10.0-12.0 | / | 0.14-0.20 |
Key Advantages:
Exceptional High-Temperature Performance:Resists oxidation and scaling up to 1150°C (2100°F), outperforming standard grades like 309/310SS.
Enhanced Creep Strength:Nitrogen and rare earth elements improve long-term mechanical stability under stress at high temperatures.
Carburization and Sulfidation Resistance:Suitable for aggressive environments like chemical processing.
Fabricability: Good weldability and formability compared to other high-temperature alloys.
Applications:
- Industrial furnaces (burners, radiant tubes, conveyor systems).
- Power generation components (heat exchangers, boilers).
- Petrochemical processing equipment.
- Cement and mineral processing kilns.
253MA is a versatile, cost-efficient solution for high-temperature environments, combining oxidation resistance, creep strength, and durability, making it ideal for industries requiring reliability under thermal stress.
Mechanical Properties of ASTM A312 253MA Stainless Steel Seamless Pipe
| Tensile Str (MPa) min | Yield Str 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness |
| Rockwell B (HR B) max | Brinell (HB) max |
| 600 | 310 | 40 | 95 | 217 |
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STAINLESS STEEL SEAMLESS PIPE UNS 30815 253MA 1.4835 PIPE Images
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