MA® is a trademark owned by Outokumpu. Stainless AB. The standard grade designation covering this grade is UNS S Other mills produce grades. Stainless Steel MA Plate Forms of MA Available at Mega Mex. Plate; Welding Material: Bare Weld Wire, Coated Electrode and Spooled Weld Wire. With the addition of rare earth elements, RA MA still performs well at temperatures up to °F (°C), similar to that of stainless steel.
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Machinability Similar in characteristics to other austenitic heat resisting alloys. No forming should be performed in the range of F C due to low ductility.
Applications Applications include a wide variety of components requiring high strength at elevated temperatures. Alloy Chemistry Data: Stainless MA is a lean austenitic heat resistant alloy with high strength and outstanding oxidation resistance.
However, with positive feeds and slow speeds combined with abundant cutting fluid this alloys tendency to work harden may be minimized.
Among them are included radiant heating tubes, heat exchangers, heat treating oven components, kilns, expansion bellows and stack dampers. Nitrogen, carbon and a dispersion of rare earth and alkali metal oxides combine to provide creep rupture strength comparable to the nickel base alloys. Do not hold or soak at temperature due to problems associated with excessive grain growth.
In comparison to carbon steel, stainless steels are tougher and tend to work harden rapidly. Hardening This alloy will not harden by thermal treatment.
Principal Design Features This alloy combines oxidation resistance up to F C with high strength, good general corrosion ateel and ease of fabrication. Preheating and post weld annealing are not required. Electrical Resistivity microhm-cm at 68 Deg F. Modulus of Elasticity Tension. This alloy combines oxidation resistance up to F C with high strel, good general corrosion resistance and ease of fabrication. Similar in characteristics to other austenitic heat resisting alloys.
Developed as an alternative for and stainless in heat resistant applications by replacing some of the chromium and silicon with domestically available rare earth metals.
Filler metal should be of similar composition for maximum weld integrity and properties. 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 MA.
Annealing Stress relieve at F Cheld for minutes followed by air cooling.
This alloy will not harden by thermal treatment. It is austenitic in all conditions. Forming This alloy can be readily sheared, formed and punched. Applications include a wide variety of components requiring high strength at elevated temperatures. Stainless MA can be welded using conventional welding processes. Heat to F C and finish at F C. Positive feeds and slow speeds combined with abundant cutting fluid can minimize this alloys’ high tendency to work harden.
Humble, Texas etainless Megamex is a metal supplier for hastelloy, monel, inconel, stainless steel, carbon steel, metal fabrication, nickel alloys, and more. Stress relieve at F Cheld for minutes followed by air cooling. Filler metal should be of similar composition for maximum weld integrity and properties. Full annealing is obtained by heating to F Cholding for minutes followed by air cooling.
Due to its high strength, however, expect to use higher forces to counteract its tendency to spring-back. Stainless steel MA is readily fabricated by standard commercial procedures. Distributors will offer small quantity buys while mills will generally only sell large quantities, with delivery times anywhere from 10 to 50 weeks depending on size and form required This material is stocked primarily in Tubular Products by 3 distributors but is also available to a lesser stainlezs in Wire Products, Bar Products, Flat Rolled Products, and Piping Components.
For improved creep strength 253ms high temperature, consider Alloysand This alloy can be readily sheared, formed and punched.