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Description

USA AISI CX-7 W-Ta-Co class carbide and CX-7 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: CX-7
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy CX-7 AISI USA W-Ta-Co class carbide
CW-2
CW-3
CW-4
CW-5
CX-1
CX-2
CX-3
CX-4
CX-5
CX-6

Chemical composition(mass fraction)(wt.%) of the CX-7

C(%) W(%) Co(%) Ta(%)
4.59 65.72 25.0 4.69

Mechanical Properties of steel grade CX-7

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)
735 (≥) 661 (≥) 22 31 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade CX-7

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
12 - -     0.22 -  
892 752 - 21.3 213   -  
286 - 32 22.2   131 444

Heat Treatment of steel grade CX-7

Heat treated : 1743°C - 1197°C

Technological Curves of steel grade CX-7

Cross Reference Table (Equivalent Grade) of CX-7

Grade Standard Country Application
CX-7 AISI USA W-Ta-Co class carbide

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