Crucible Steel 17Cr-4Ni Super-X® Precipitation Hardening Stainless Steel

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Crucible Steel 17Cr-4Ni Super-X® Precipitation Hardening Stainless Steel
Categories:	Metal; Ferrous Metal; Martensitic; Stainless Steel; Precipitation Hardening Stainless
Material Notes:	Crucible 17Cr-4Ni is a version of 17CR-4Ni which has been modified to substantially improve machinability and other properties. Patented 17Cr-4Ni Super-X meets industry specifications for 17Cr-4Ni. The machinability improvement, of up to 45% over conventional solution-treated ( Condition A) 17Cr-4Ni material, has been achieved by close control of the chemical composition within the standard range. Crucible 17Cr-4Ni shows a significant improvement in ductility in all conditions, especially the solution-treated condition. In addition, the steel is markedly tougher than conventional 17Cr-4Ni as measured by Charpy impact tests. Crucible 17Cr-4Ni Super-X is a precipitation-hardening stainless steel which is capable of a high strength and hardness levels after a relatively simple heat-treatment procedure. This grade is martensitic and magnetic in both the solution-treated and precipitation-hardened conditions. It has high resistance to crack propagation, good transverse properties, and corrosion resistance is normally superior to the regular martensitic chromium-type of stainless steel. Because of the single low-temperature (900-1150°F) precipitation-hardening heat treatment of this grade, scaling and distortion are virtually eliminated. This enables materials to be finish machined to close tolerance prior to heat treatment. Information provided by Crucible Specialty Metals.
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Available Properties

Density, A
Density, H1150
Hardness, Brinell, A
Hardness, Brinell, H1100
Hardness, Brinell, H925
Hardness, Rockwell C, H1150-M
Hardness, Rockwell C, H1075
Hardness, Rockwell C, H900
Tensile Strength, Ultimate, H1150-M
Tensile Strength, Ultimate, A
Tensile Strength, Ultimate, H1025
Tensile Strength, Ultimate, H1150
Tensile Strength, Ultimate
Tensile Strength, Ultimate, H1150
Tensile Strength, Ultimate, H900
Tensile Strength, Yield, H1150
Tensile Strength, Yield, H1075
Tensile Strength, Yield, H900
Tensile Strength, Yield, H1150
Tensile Strength, Yield, H900
Tensile Strength, Yield, H1150
Tensile Strength, Yield, H900
Elongation at Break, in 2", A
Elongation at Break, in 2", H1025
Elongation at Break, in 2", H1150-M
Elongation at Break, in 2"; H900
Elongation at Break, in 2", H1150
Elongation at Break, in 2"; H900
Elongation at Break, in 2", H1150
Reduction of Area, H900
Reduction of Area, H925
Reduction of Area, H1100
Reduction of Area, H900
Reduction of Area, H900
Reduction of Area, H1150
Reduction of Area, H1150
Rupture Strength
Rupture Strength
Rupture Strength
Rupture Strength
Tensile Modulus, H900
Poissons Ratio, H900; Calculated
Fatigue Strength
Fatigue Strength
Shear Modulus, H1075 and H1150
Shear Modulus, H900
Charpy Impact, H900
Charpy Impact, H1150-M
Electrical Resistivity, H900
Electrical Resistivity, A
CTE, linear, A and H900
CTE, linear, H1075
CTE, linear, A
CTE, linear, H1150
CTE, linear, H1150
Specific Heat Capacity
Thermal Conductivity, H900
Thermal Conductivity, H900
Carbon, C
Chromium, Cr
Copper, Cu
Iron, Fe, As Remainder
Manganese, Mn
Nb + Ta
Nickel, Ni
Nitrogen, N
Phosphorus, P
Silicon, Si
Sulfur, S

Property Data

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