Nitronic 60 (UNS S21800)

Nitronic 60 (UNS S21800) is known for its excellent galling resistance, even at elevated temperatures. The additions of 4% silicon and 8% manganese inhibit wear, galling, and fretting. It is commonly used for various fasteners and pins that require strength and resistance to galling. It maintains decent strength up to temperatures of 1800°F and has oxidation resistance similar to that of 309 stainless steel. The general corrosion resistance is between that of 304 and 316 stainless steel.

Equivalent Grades

TrademarkGBGOSTASTMUNSDINW.Nr.NFBSJISSS
Nitronic 60Alloy 218S21800N-60

Chemical Composition, %

AlloyCSiMnPSCrNiMoNFe
Nitronic 60≤0.103.5-4.57.0-9.0≤0.040≤0.03016.0-18.08.0-9.0≤0.750.08-0.18Bal

Typical Physical and Mechanical Properties (RT, Annealed)

Density, g/cm3Melting Point, ℃Tensile Strength, MPaYield Strength, MPaELongation, %Hardness, HRB
8.01350-1380≥655≥345≥35/

Available Products and Specifications

Rod, Bar, Wire and ForgingsASTM A276, ASTM A314, ASTM A479, ASTM A580, AMS 5848
Plate, Sheet and StripASTM A240
Pipe and Tube
Welding ProductA5.9 ER218
OthersASTM A193, ASTM A194, ASTM A351, ASTM A743

Features

  • Anti galling
  • Wear resistant

Applications

  • Valve Stems
  • Pins
  • Brushes
  • Roller bearings
  • Pump shafts and rings
  • Thread inserts
  • Fasteners