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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)
171(≥)131(≥)422331Solution and Aging,Annealing,Ausaging,Q+T,etc414
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
581(≥)879(≥)344223Solution and Aging,Annealing,Ausaging,Q+T,etc112
Temp.
°C/°F		Creep strain limit
(10000h)
(Rp1,0)N/mm2		Creep rupture strength
(10000h)
(Rp1,0)N/mm2
476915521
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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