C-4

C-4 Special Alloy

Chemical composition%of the ladle analysis of gradeC-4

W(%)	Co(%)
94.0-97.0	3.0-6.0

C-4
Density / (g/cm ^ 3) : 15.0-15.1 Hardness HRA: 92.0 ~ 93.0 Bending strength/MPa: 1205 ~ 1795 Use for example: used in cast iron, non-iron metals, nonmetal material light load precision drilling

Mechanical properties of gradeC-4

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)
114(≥)	393(≥)	43	23	31	Solution and Aging,Annealing,Ausaging,Q+T,etc	344

Physical properties of grade C-4

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
511(≥)	822(≥)	23	22	23	Solution and Aging,Annealing,Ausaging,Q+T,etc	332
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0)N/mm2	Creep rupture strength (10000h) (Rp1,0)N/mm2
189	415	493

C-4 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