Stainless Steel 442

General Characteristics of Stainless 442

Ferritic and magnetic in all conditions, Stainless 442 is a high-chromium, heat-resistant steel offering better corrosion resistance than varieties with lower amounts of chromium. Difficult to fabricate, it’s ideal for high-heat applications.

Chemical Composition of Stainless 442

  • Carbon 0.20 max
  • Chromium 18.0-23.0
  • Silicon 1.00 max
  • Manganese 1.00 max
  • Phosphorus 0.040 max
  • Sulfur 0.030 max
  • Iron balance

Heat Treatment of Stainless 442

  • Anneal by heating to 1300°F (704°C), then air cool or water quench
  • Thermal treatment won’t harden

Applications of Stainless 442

  • Storage tanks for nitric acid
  • Nitrogen fixation parts
  • Zinc die casing machines
  • Furnace and combustion components
  • Decorative trim

Machinability of Stainless 442

  • Lower work-hardening rate than iron-chromium-nickel varieties
  • Rigid and powerful machines, deep cuts, slow feeds
  • Carbide and high-speed steel tools appropriate
  • Lubrication and thorough cooling are critical

Workability of Stainless 442

  • Hot forge from 1600° to 2100°F (871° to 1149°C)
  • Reheat below 1900°F (1038°C)
  • Easily cold formed; preheating to 200° to 300°F (93° to 149°C) is beneficial

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