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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.

Inventory

Product FormSize Range FromSize Range To
253 MA® Pipe0.5 in4 in
253 MA® Round bar12.7 mm101.6 mm
253 MA® Sheet & plate1.6 mm50.8 mm
253 MA® Welding wire1.6 mm3.175 mm

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Chemical Analysis

%CrNiSiCMnPSNCeFe
Min20101.400.05---0.140.03Balance
Max221220.100.800.040.030.200.08-

Applications

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Perfect for applications in the Thermal Processing industry

253 MA® can be used in a variety of applications, here are just a few examples:

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

About 253 MA®

253 MA® alloy, despite its lean nickel content 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.

 

Contact us for more information on 253 MA® alloy!

 

Properties

Density:
8 g/cm³
Melting Range:
1371-1432 ⁰C
Poisson's Ratio:
0.31

Specifications

UNS Number:
S30815
W.Nr.Number:
1.4835
Standards:
ASTM A182, A240, A276, A312, A479
Download the 253 MA® Data Sheet Download

FAQs & Resources

Stainless steel is the generic name of different grades of steels (containing low carbon and iron), used primarily because of their corrosion resistance. All stainless steels share a minimum percentage of 10.5% chromium element. Chromium (Cr), usually a deciding factor, nickel and molybdenum are commonly added to steels to improve their corrosion resistant and make them ‘stainless’. Most of the stainless steel grades will have a UNS number that start off with letter ‘S’ such as UNS S32100 (Alloy 321) and UNS S31008/S31009 (Alloy 310/310S).

You can fill in ‘Request a Quote’ form online on most of the pages on our website or click ‘contact us’. Alternatively, you can also call us, fax your enquiry to us or send an email to enquiries@neonickel.com

You can download our current approvals from our quality page.

Request a Quote

Fill in our online form to get a fast quote. Got a technical question? Contact us on techsales@neonickel.com or for more general enquiries please email us at enquiries@neonickel.com