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Description

USA UNS J92971 Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application and J92971 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: J92971
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy J92971 UNS USA Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application
HK30
HK40
HT30
J92500
J92800
J92804
J92600
J92710
J92900
J92901

Chemical composition(mass fraction)(wt.%) of the J92971

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) Nb(%)
0.1 1.5 1.5 0.04 0.04 15.0-18.0 13.0-16.0 1.75-2.25 ≥10×C%-1.20

Mechanical Properties of steel grade J92971

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
887 (≥) 476 (≥) 34 22 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade J92971

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
31 - -     0.14 -  
483 131 - 14.3 132   -  
947 - 34 43.2   143 332

Heat Treatment of steel grade J92971

Heat treated : 1333°C - 1579°C

Technological Curves of steel grade J92971

Cross Reference Table (Equivalent Grade) of J92971

Grade Standard Country Application
UNS J92971 AISI USA
J92971 UNS USA Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application
J92971 UNS USA Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application

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