With better strength at higher temperatures, Stainless 422 is an appealing alternative to Stainless 403. It offers ductility and strength from room temperature to 1200°F (649°C) and resists scaling and oxidation to 1400°F (760°C).

Chemical Composition of Stainless 422

• Carbon 0.20-0.25
• Manganese 1.00 max
• Molybdenum 0.75-1.25
• Chromium 12.00-14.00
• Silicon 1.00 max
• Sulfur 0.03 max
• Nickel 0.40-1.00
• Tungsten 0.75-1.25
• Vanadium 0.20-0.50
• Phosphorus 0.04 max
• Iron balance

Heat Treatment of Stainless 422

• To anneal, heat to 1600° to 1650°F (871° to 899°C), then slowly cool in furnace
• For stress relief, heat to 1100° to 1150°F (593° to 621°C) before furnace or air cooling
• Harden by heating to 1875° to 1925°F (1024° to 1052°C) before oil quenching and tempering

Machinability of Stainless 422

• Comparable to 18-8 but easier to machine
• Help avoid galling with sharply ground tools
• Maintain consistent speed and feed
• Turning tools: 8-14° side rake
• Drilling: 140° point
• Threading: grind tools with 10-15° back rake
• Cobalt high-speed tools: turn at 90-120 sfpm, drill at 40-75 sfpm, mill at 70-120 sfpm, ream at 20-60 sfpm, roughing and finishing at 200-400 sfpm

In what form is Stainless Steel 422 available at ISHWAR STEEL CORPORATION?

• Bar
• Wire
• Sheet
• Plate
• Forgings
• Pipe
• Flanges