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C-8A Application:Machining with carbide
Category Type Steel grade Standard Country
Grades Special Alloy C-8A AISI USA

Chemical composition % of the ladle analysis of grade C-8A

Co(%) Ti(%)
Ni-Mo bond 72.0-80.0
C-8A
Density / (g/cm ^ 3) : 5.6 ~ 5.9
Hardness HRA: 92.0 ~ 93.0
Bending strength/MPa: 620 ~ 1515
Use for example: used for steel precision bore
Mechanical properties of grade C-8A
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)
925 (≥) 337 (≥) 41 12 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 233
Physical properties of grade C-8A
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
943 (≥) 567 (≥) 24 34 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 222
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
315 929 847
C-8A 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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