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CX-7 Application:W-Ta-Co class carbide
Category Type Steel grade Standard Country
Grades Special Alloy CX-7 AISI USA

Chemical composition % of the ladle analysis of grade CX-7

C(%) W(%) Co(%) Ta(%)
4.59 65.72 25.0 4.69
CX-7
Density / (g/cm ^ 3) : 13.10 Hardness HRC: 84.3 σ bb/MPa: 2320 Grain size/μ m: 1 ~ 2 Use for example: in a very severe impact can be used under the conditions
Mechanical properties of grade CX-7
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)
731 (≥) 396 (≥) 41 13 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 331
Physical properties of grade CX-7
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
522 (≥) 126 (≥) 23 24 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 413
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
663 735 145
CX-7 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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