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Description

CQ-8 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: CQ-8
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel CQ-8
ASP 2055
ASP 2060
ASP 2080
CQ-1
CQ-2
CQ-3
CQ-4
CQ-5
CQ-6
CQ-7

Chemical composition(mass fraction)(wt.%) of the CQ-8

 

C
Si
Mn
P
S
Cr Ni
 5.02            
Mo Al W Nb Ti V Ce
    76.98        
N Co Pb B Other    
  18.0     P 4-144     
             

Mechanical Properties of steel grade CQ-8

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)
758 (≥) 152 (≥) 31 31 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical Properties of steel grade CQ-8

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
23 - -     0.22 -  
413 638 - 21.3 443   -  
735 - 11 34.2   343 442

Heat Treatment of steel grade CQ-8

Heat treated : 1679°C - 1389°C

Technological Curves of steel grade CQ-8

Cross Reference Table (Equivalent Grade) of CQ-8

Grade Standard Country Application
CQ-8 AISI USA W-Co class carbide

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