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C-8Application:Machining with carbide
CategoryTypeSteel gradeStandardCountry
Grades Special Alloy C-8AISIUSA

Chemical composition%of the ladle analysis of gradeC-8

W(%)Co(%)Ti(%)Ta(%)
62.0-82.04.4-8.010.4-18.02.0-12.0
C-8
Density / (g/cm ^ 3) : 9.8 ~ 11.9
Hardness HRA: 92.0 ~ 93.0
Bending strength/MPa: 1035 ~ 1585
Use for example: used for steel precision bore
Mechanical properties of gradeC-8
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 ConditionBrinell hardness(HBW)
952(≥)358(≥)442414Solution and Aging,Annealing,Ausaging,Q+T,etc122
Physical properties of gradeC-8
PropertyDensity
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
534(≥)687(≥)334331Solution and Aging,Annealing,Ausaging,Q+T,etc121
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0)N/mm2
Creep rupture strength
(10000h)
(Rp1,0)N/mm2
476998644
C-8Range of products
Product typeProductsDimensionProcessesDeliver Status
Plates/SheetsPlates/Sheets0.08-200mm(T)*W*LForging,hot rolling and cold rollingAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Steel BarRound Bar,Flat Bar,Square BarΦ8-1200mm*LForging,hot rolling and cold rolling,CastBlack,Rough Turning,Shot Blasting,
Coil/StripSteel Coil/Steel Strip0.03-16.0x1200mmCold-Rolled&Hot-RolledAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Pipes/TubesSeamless Pipes/Tubes,Welded Pipes/TubesOD:6-219mm x WT:0.5-20.0mmHot extrusion,Cold Drawn,WeldedAnnealed,Solution and Aging,Q+T,ACID-WASHED
Cross Reference Table(Equivalent Grade)
GradeStandardCountryApplication
HEV5AISIUSA
Steel for exhaust valves
N07080AISIUSA
Steel for exhaust valves

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