Chemical Composition, weight %

  • Carbon: 0.06 Max
  • Manganese: 0.50 Max
  • Silicon: 1.00 Max
  • Phosphorus: 0.02 Max
  • Sulfur: 0.02 Max
  • Chromium: 10.5-12.5
  • Nickel: 6.0-8.0

Tensile Requirements

  • Tensile Strength, ksi: 140 Min
  • Yield Strength, ksi: 135 Min
  • Elongation in 2 in.: 15% Min