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Description

USA AISI CU-3 W-Ta-Nb-Co class carbide and CU-3 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: CU-3
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy CU-3 AISI USA W-Ta-Nb-Co class carbide
CQ-8
CQ-9
CQ-10
CQ-11
CQ-12
CQ-13
CQ-14
CQ-15
CU-1
CU-2

Chemical composition(mass fraction)(wt.%) of the CU-3

C(%) W(%) Co(%) Nb(%) Other(%)
4.7 65.7 25.0 1.5 Ta:3.1

Mechanical Properties of steel grade CU-3

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)
396 (≥) 177 (≥) 12 13 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical Properties of steel grade CU-3

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
24 - -     0.42 -  
662 198 - 31.3 441   -  
322 - 23 11.2   141 433

Heat Treatment of steel grade CU-3

Heat treated : 1814°C - 1455°C

Technological Curves of steel grade CU-3

Cross Reference Table (Equivalent Grade) of CU-3

Grade Standard Country Application
CU-3 AISI USA W-Ta-Nb-Co class carbide

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