Home Companies Hunan Boyun-Dongfang Powder Metallurgy Co., Ltd

Cemented Tungsten Carbide Buttons Mushroom Teeth For Iron Ore Crusher

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Address: Boyun Innovation Industrial Zone, 346# Leifeng Ave,Yuelu Distric,Changsha,Hunan,China

Contact name:Lyu

Country/Region	china
City & Province	changsha hunan
Categories	Mining and Metallurgy Projects

Cemented carbide for coal-mining and iron ore crusher

Grade Introduction of Mineral
Grade	Co	Grain Size of WC	Hardness		Density	Flexural Strength	Bending Tough- ness	Elastic Modulus	Coeffi- cient of Thermal Expan- sion	Application
	Co%		HRA	HV₃₀	g/cm³	MPa	N/mm²	GPa	10^-6/°C
G206	6	Medium	90.8	1500	14.9	3200		530	4.9	Suitable for DTH drilling with high wind pressure
G506	6	Coarse	88.0	1200	14.9	2500		530	4.9	Suitable for gear shaper cutting of concrete and asphalt road
G208	8	Medium	89.1	1300	14.7	2750		510	5.1	Suitable for DTH drilling with medium and low wind pressure,and rock breaking
G308	8	Medium	88.8	1270	14.7	2750		510	5.1	Suitable for tri-cone drill bit in milling, and tri-cone
G211	11	Medium	88.0	1200	14.4	2800		478	5.6	tri-cone drill bit in milling, drill bit in engineering
G215	15	Medium	86.8	1100	14	2800		430	6.3	Suitable for oilfield composite sheet
G510	10	Coarse	86.2	1040	14.5	2700		490	5.4	Suitable for rotary drilling cutter, and coal cutters
G512	12	Coarse	86.0	1030	14.3	2900		470	5.7	Suitable for tunnel boring machine of scraper,cut- ter and wear plate
G513	13	Coarse	85.6	1000	14.2	2900		460	5.8	Suitable for tunnel boring machine of scraper,cut- ter and wear plate
G707	7	Extra Coarse	86.3	1050	14.8	2200		520	5	Suitable for hard rock in engineering, and DTH drilling cutter
G806	6	Extra Coarse	86.2	1040	14.9	2100		530	4.9	Suitable for high rock of rotary drilling cutter

Hunan Boyun Dongfang Powder Metallurgy Co., Ltd. was founded in 1994 by the Institute

of powder metallurgy of Central South University of Technology (now the research center

of powder metallurgy engineering of Central South University) and Hunan Yinzhou Co.,

Ltd. (now the wholly-owned member company of China Dongfang asset management

company, Bangxin Asset Management Co., Ltd.),now it is the holding subsidiary of

Hunan Boyun New Material Co., Ltd. (Stock Code: 002297), with a registered capital

of 60 million yuan.The company is a national high-tech enterprise with Academician

Huang Boyun, the top material scientist in China, as the chief scientist and honorary

chairman of the board, integrating domestic and foreign talents and technological

advantages, integrating production, learning, research and application, engaged in the

research, development, production and sales of high-performance cemented carbide.

The member of China Tungsten Industry Association, China mold industry association,

China machinery industry metal cutting tool technology association.

With strong support from Central South University, State Key Laboratory of

Powder Metallurgy, National Engineering Research Center of Powder Metallurgy,

Quality Supervision and Inspection Center of Powder Metallurgy Products of

Chinese Nonferrous Material Industry , the Company has played leading role in

three projects of “National High Technology Research and Development Program

(863 plan)”.

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