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Description

USA ASTM CF8A Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application and CF8A Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: CF8A
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy CF8A ASTM USA Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application
J93005
J94604
J94213
J95705
CF-3
CF3A
CF3M
CF3MA
CF3MN
CF8

Chemical composition(mass fraction)(wt.%) of the CF8A

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%)
0.08 2 1.5 0.04 0.04 18.0-21.0 8.0-11.0 ≤0.50

Mechanical Properties of steel grade CF8A

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)
364 (≥) 346 (≥) 12 13 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade CF8A

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
43 - -     0.42 -  
981 454 - 31.3 432   -  
564 - 34 14.2   244 342

Heat Treatment of steel grade CF8A

Heat treated : 1262°C - 1454°C

Technological Curves of steel grade CF8A

Cross Reference Table (Equivalent Grade) of CF8A

Grade Standard Country Application
ASTM CF8A AISI USA
CF8A ASTM USA Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application
CF8A ASTM USA Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application

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