253MA Stainless Steel Plate
Stainless 253 MA, also name as 1.4835 stainless steel 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 up to 2000 F degree. Nitrogen, carbon and a dispersion of rare earth and alkali metal oxides combine to provide creep rupture strength comparable to the nickel base alloys. A wide variety of components requiring high strength at elevated temperatures such as heat exchangers, kilns, stack dampers and oven components are common applications for 253 MA.
Performance Profile
253 MA Creep Rupture Strength
253 MA is a lean austenitic heat resistant alloy with high strength and outstanding oxidation resistance. It offers an excellent combination of creep strength along with excellent resistance to oxidation, sulfidation, and erosion at high temperatures in an alloy containing just 11% nickel. Because of its lean chemistry, 253 MA is very economical compared to most heat resistant alloys.
253 MA obtains its heat resistant properties by tight control of micro alloy additions. The use of cerium in combination with silicon results in superior oxidation resistance to 1093 Centigrade degree. Nitrogen, carbon, and cerium combine to provide creep rupture strength that is double that of type 310 and 309 stainless at 871 Centigrade degree.
Chemistry
Cr Ni Si C Mn P S N Ce Fe
MIN 20.00 10.00 1.40 0.05 -- -- -- 0.14 0.03 Balance
MAX 22.00 12.00 2.00 0.10 0.80 0.04 0.03 0.20 0.08
1.4835 stainless steel plate
Size:
Thickness 0.6-30mm
Width 1000-1500mm
Length 2000-6000mm
Fabrication and Welding with Stainless 253 MA
Stainless steel 253 MA is readily fabricated by standard commercial procedures. In comparison to carbon steel, stainless steels are tougher and tend to work harden rapidly. However, with positive feeds and slow speeds combined with abundant cutting fluid this alloys tendency to work harden may be minimized.
Stainless 253 MA can be welded using conventional welding processes. Filler metal should be of similar composition for maximum weld integrity and properties.
Applications:
Burners, Boiler Nozzles
Petrochemical and refinery tube hangers
Heat exchangers
Expansion bellow
Stack dampers
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