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253 MA®

An austenitic chromium-nickel-silicon grade, 253 MA® offers outstanding strength and unrivalled heat resistance.

253 MA® was developed over 30 years ago, when the need for a heat resistant stainless steel with high strength and good oxidation resistance was required in the industry.


Product Form Size Range From Size Range To
253 MA® Pipe 0.5 in 4 in
253 MA® Round bar 12.7 mm 101.6 mm
253 MA® Sheet & plate 1.6 mm 50.8 mm
253 MA® Welding wire 1.6 mm 3.175 mm

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Chemical Analysis

% Cr Ni Si C Mn P S N Ce Fe
Min 20 10 1.40 0.05 - - - 0.14 0.03 Balance
Max 22 12 2 0.10 0.80 0.04 0.03 0.20 0.08 -


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Perfect for applications in the Thermal Processing industry

253 MA® can be used in a variety of applications including:

  • Pyrolysis Vessels
  • Boiler Nozzles
  • Corrugated Boxes
  • Cyclones
  • Bar Baskets
  • Radiant Tubes
  • Combustion chambers

About 253 MA®

Despite its lean nickel content, 253 MA® alloy offers an outstanding combination of creep strength and high resistance to oxidation, sulphidation and erosion/abrasion at extremely high temperatures. This makes the alloy more economical than most heat resistant alloys.

The high heat resistant properties of 253 MA® are obtained by the tight control of micro alloy additions. Whilst the benefit of creep rupture strength is down to the combination of nitrogen, carbon and cerium, its superior oxidation resistance is a result of the combination of cerium and silicon.

253 MA® is the registered trademark of Outokumpu Stainless.

Contact us for more information on 253 MA® alloy!



8 g/cm³
Melting Range:
1371-1432 ⁰C
Poisson's Ratio:


UNS Number:
Werkstoff Number:
ASTM A182, A240, A276, A312, A479
Download the 253 MA® Data Sheet Download

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