Alloy 253 MA SS - Weldability

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Stainless Steel 253 MA is promptly fabricated by a standard commercial process. In comparison to carbon steel, stainless steels are tougher and tend to work harden quickly. So, with the positive feeds and slow speeds combined with abundant cutting fluid Stainless Steel 253 MA alloys tendency to work harden may be minimized. All ordinarily known welding techniques apply here, which involve SMAW, GMAW and SAW. Preheating and post weld annealing are not required. Filler metal should be of comparable composition for maximum weld integrity and properties.

Applications
  • Burners, Boiler Nozzles
  • Petrochemical and refinery tube hangers
  • Heat exchangers
  • Expansion bellow
  • Stack dampers


Chemical Composition %

GradeCN Si PS CrMn NiCe
253 MA 0.05 - 0.10 0.14 - 0.20 1.4 - 2.0 0.04 max0.03 max 20.0 - 22.0 0.8 max 10.0 - 12.0 0.03 - 0.08

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