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Stainless Steel 253 MA
ASTM A 240, A 276, A 312
A 358, A 409, A 473, A 479
A 480, A 813, A 814
UNS S30815
Stainless 253 MA is a lean austenitic heat resistant alloy with high strength and outstanding oxidation resistance. 253 MA maintains its heat resistant properties by advanced control of micro alloy additions. The use of rare earth metals in combination with silicon gives superior oxidation resistance to 2000ºF. Nitrogen, carbon and a dispersion of rare earth and alkali metal oxides combine to provide creep rupture strength comparable to the nickel base alloys.
Mega Mex supplies Stainless 253 MA in the form of plates, sheets, strips, wire, pipe, pipe fittings, welding wire, and welding electrode.
Typical applications are:
- Pulverized coal burners in power boilers
- Recuperators
- Petrochemical, refinery and steam superheater tube hangers
- Thermal oxidizers
- Expansion bellows
- Furnace fans, dampers
- Kilns
Chemical Composition:
| Element | Avg. Nominal % |
|---|---|
| Chromium | 20.00 – 22.00 |
| Nickel | 10.00 – 12.00 |
| Carbon | 0.05 – 0.10 |
| Silicon | 1.40 – 2.00 |
| Manganese | Nil – 0.80 |
| Nitrogen | 0.14 – 0.20 |
| Cerium | 0.03 – 0.08 |
| Iron | Balance |
Fabrication with Stainless 253 MA
Stainless 253 MA is readily fabricated by standard commercial procedures. In comparison to carbon steel, stainless steels are tougher and tend to work harden rapidly.
Stainless 253 MA can be welded using conventional welding processes. Filler metal should be of similar composition for maximum weld integrity and properties.
Stainless 253 MA Availability
Mega Mex supplies Stainless 253 MA in the form of plates, sheets, strips, wire, pipe, pipe fittings, welding wire, welding electrode.
You will find our prices highly competitive.