Gall-Tough® Plus

UNS #S20162/S21800

Gall-Tough® Plus is a high silicon, high manganese, nitrogen strengthened, austenitic stainless alloy which exhibits superior self-mated galling and metal-to-metal wear resistance. The alloy possesses higher strength and chloride corrosion resistance equal to or better than 316, along with equivalent high temperature oxidation resistance. Gall-Tough® Plus stainless may be considered for applications in which parts are in relative motion under load without lubricants.

Type Analysis

  • Carbon (Maximum) 0.15
  • Phosphorus (Maximum) 0.04
  • Silicon (Maximum) 2.50-4.50
  • Nickel (Nominal) 6.00-10.00
  • Manganese (Maximum) 4.00-8.00
  • Sulfur (Maximum) 0.04
  • Chromium (Nominal) 16.50-21.00
  • Cobalt (Nominal) 0.75
  • Molybdenum (Nominal) 0.50-2.50
  • Iron (Nominal) Balance
  • Nitrogen (Nominal) 0.05-0.25

Applications

Components in food and drug processing industries- Bolts, nuts and other fasteners for electronic and nuclear applications- Fittings for pumps and valves in chemical process industry- Surgical and analytical instrumentation- Petrochemical equipment- Bridge pins

Applicable Specifications

Bar

Billet

Flats

Hexagons

Rounds

Strip

Sheet

Wire

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