GNB200

GNB200 is high strength, low alloy vacuum arc re-melted steel the possesses an excellent combination of strength, impact strength at -40F, and high temperature temper resistance. The superior combination of strength, toughness, superior microstructural cleanliness, and controlled microstructure readily identify it as a candidate for critical applications.

Type Analysis

  • Carbon (Nominal) 0.21-0.27
  • Phosphorus (Maximum) 0.005
  • Silicon (Maximum) 0.1
  • Nickel (Nominal) 3.0-3.8
  • Manganese (Maximum) 0.1
  • Sulfur (Maximum) 0.002
  • Chromium (Nominal) 1.2-1.8
  • Molybdenum (Nominal) 1.1-1.9
  • Iron (Nominal) Balance
  • Aluminum (Maximum) 0.02
  • Copper (Maximum) 0.1
  • Columbium/Niobium .005-0.03

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