Cast Tungsten Carbide

Cast Tungsten Carbide or Casting Tungsten Carbide, Tungsten Casting Carbide, is used as a reinforcing material for hard-facing of oil drilling tools, building-material production machines, grain-processing machines and other easily wearing components, which is made by melting tungsten metal (W) and tungsten mono-carbide (WC) together, a eutectic composition of WC and W₂C is formed. This melt is cast and rapidly quenched to form extremely hard solid particles having a fine crystal structure. The solids are crushed and classified to various mesh sizes required.

Spherical Cast Tungsten Carbide, is a kind of regularly spherical cast tungsten carbide with the microstructure is of homogeneous, dense and dentritic particle. It is widely used for exploiting drill bits, PCB drills, melting and penetrating, spray coating and built-up welding on worn surface.

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Technical Specification

No.	Item		Standard Specification
1	Casting WC		Size (mesh/ mm)		Chemical % Max each
2	Casting Tungsten Carbide	YZ 5-10f	5-10	4.0-2.0	W 95-96%
		YZ10-20f	10-20	2.0-0.84	Total C 3.8-4.1%,
		YZ20-30f	20-30	0.84-0.59	Free C 0.08%
		YZ30-40f	30-40	0.59-0.42	Fe 0.30, Si 0.02, V/O 0.05
		YZ40-60f	40-60	0.42-0.25	Cr/Ti 0.10
		YZ60-80f	60-80	0.25-0.18	Mo+Co+Ni 0.20
		YZ100-200f	100-200	0.18-0.074	Density 15.8-16.7g/cm³
		YZ200-400f	200-400	0.074-0.038	Micro-hardness HV1700-2500
3	Spherical Casting Tungsten Carbide	SYZ20-40	20-40	0.84-0.42	W 95-96%
		SYZ40-60	40-60	0.42-0.25	Total C 3.8-4.1%,
		SYZ60-80	60-80	0.25-0.18	Free C 0.08%
		SYZ60-100	60-100	0.25-0.15	Fe 0.30, Si 0.02,V/O 0.05
		SYZ100-200	100-200	0.15-0.075	Cr/Ti 0.10
		SYZ200-325	200-325	0.075-0.045	Mo+Co+Ni 0.20
		SYZ100-325	100-325	0.15-0.045	Density 15.8-16.7g/cm³
		SYZ325	-325	0.045	Micro-hardness HV2700-3300
4	Packing		In sealed plastic bag, iron drum outside, 50/100kgs net.