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CQ-9 Application:W-Co class carbide
Category Type Steel grade Standard Country
Grades Special Alloy CQ-9 AISI USA

Chemical composition % of the ladle analysis of grade CQ-9

C(%) W(%) Co(%)
4.59 70.41 25.0
CQ-9
Density / (g/cm ^ 3) : 13.25
Hardness HRC: 85.5
σ bb/MPa: 2110 ~ 3160
Grain size/μ m: 2 ~ 3
Use for example: in a severe impact under the terms of use
Mechanical properties of grade CQ-9
Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
292 (≥) 893 (≥) 43 11 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 213
Physical properties of grade CQ-9
Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
878 (≥) 911 (≥) 14 44 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 244
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
869 858 666
CQ-9 Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

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