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CZ-4 Application:W-Ta-Ti-Co class carbide

Category	Type	Steel grade	Standard	Country
Grades	Special Alloy	CZ-4	AISI	USA

Chemical composition % of the ladle analysis of grade CZ-4

C(％)	W(%)	Co(%)	Ti(%)	Ta(%)
6.94	68.06	9.5	8.00	7.50

CZ-4

Physical and mechanical performance | density g/cm ^ 3:12.00

Physical and mechanical performance | hardness HRC: 91.0

Physical and mechanical performance | σ bb MPa: 1760

Physical and mechanical performance | grain size μ m: 3

Use for example: for steel general processing

Mechanical properties of grade CZ-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)
366 (≥)	862 (≥)	33	32	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	124

Physical properties of grade CZ-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
377 (≥)	128 (≥)	43	22	41	Solution and Aging, Annealing, Ausaging, Q+T,etc	323
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
927	388	595

CZ-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

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