403Cb, 410Cb, B50A790, XM-30, UNS S41040

B50A947 403Cb, 410Cb is a martensitic stainless steel, this alloy has higher strength and toughness, mainly used in Power Generation.

403Cb, 410Cb, B50A790, XM-30, UNS S41040

What is 403Cb, 410Cb grade steel?

403Cb, 410Cb is a martensitic stainless steel, this alloy has higher strength and toughness, the addition of columbium can improve grain size control and make it easier to heat treat, mainly used in electrical energy.

See more materials in Steels of Blade for Steam and Gas Turbine, including 1.4906, XM-25, AISI 422 and B50A365.

Chemical Composition

GradeChemical composition WT %
CSiMnPSCrNiMoWVTiNSnAlCuCo
403Cb, B50A9470.06-0.150.50.25-0.650.0250.01011.25-130.60.30.1Tried0.05Tried0.050.0250.20.2

Mechanical Properties

403Cb Mechanical properties acc. to B50A947

  • Tensile strength Rm MPa: Min 760
  • Yield Strength Rp MPa: Min 555
  • Elong In2 inches %: min 15
  • RA %: min 15
  • Brinell Hardness, 3000Kg Load %: 223-269
  • V-Notch Charpy Min. Energy at R.T. ft-lbs(J): min 25(33.9)

Welding

Good welding property

Machining

Good machining property

Frequently Asked Questions about 403Cb, 410Cb

Common questions about 403Cb, 410Cb steel grade, properties, equivalents, and ordering from Longhai Steel.

What is 403Cb, 410Cb grade steel?
403Cb, 410Cb is a special steel grade supplied by Longhai Steel: 403Cb, 410Cb is a Low-Carbon AOD + ESR Melting Martensitic Stainless Steels for Turbine Blades, this alloy has higher strength and toughness acc. to GE B50A947, ASTM A276 , A479, GE B50A790, DOD-F-24669, Dresser Rand CM-8782, GE B50A947B
What is the chemical composition of 403Cb, 410Cb?
The chemical composition of 403Cb, 410Cb is listed on this datasheet page and in the downloadable PDF.
How can I get a quote for 403Cb, 410Cb?
Email sales@longhaisteel.com with size, quantity, and delivery requirements.