Niobium Powder for Metallurgical Purposes

CMTRM is the first enterprise engaged in the smelting and production of tungsten, molybdenum, tantalum and niobium in China. Through decades of technology accumulation and precipitation, the company has mastered the processing characteristics of various kinds of powder from raw ore control, smelting technology to powder preparation.

Product Description

产品用途：

用作生产超硬材料和硬质合金的添加剂并用来生产电焊条、耐火材料等。

Application:

It is used to make super-hard materials and cemented carbides as alloy additives and also for producing welding electrodes, refractories, etc.

产品性能参数/ Product Property Parameters：

产品牌号Grade		FNb-1	FNb-2	FNb-3	FXNb-1	FXNb-2	FXNb-3
主含量（质量分数），（%，不小于） Main Content (mass fraction), %, min	Nb+Ta	99.8	99.5	98	99.8	99.5	99
杂质含量（质量分数），（%，不大于） Impurity Contents (mass fraction), %, max	W	0.005	0.01	—	0.005	0.01	0.01
	Mo	0.003	0.005	—	0.005	0.01	0.01
	Cu	0.003	0.005	—	0.003	0.006	0.006
	Fe	0.01	0.05	—	0.01	0.02	0.03
	Ni	0.005	0.005	—	0.005	0.01	0.01
	Cr	0.005	0.01	—	0.005	0.01	0.01
	Ti	0.003	0.005	—	0.005	0.01	0.01
	Ta	0.10	0.20	—	0.10	0.20	0.30
	Mn	0.003	0.005	—	0.005	0.01	0.01
	Si	0.005	0.010	—	0.005	0.01	0.01
	Al	—	—	—	0.003	0.006	0.006
气体杂质含量（质量分数），（%，不大于） Gas Impurity Contents (mass fraction), %, max	C	0.05	0.05	0.08	0.02	0.04	0.04
	O	0.20	0.20	0.50	0.30	0.35	0.50
	N	0.04	0.05	—	0.02	0.04	0.05
	H	0.005	0.005	0.01	0.005	0.01	0.01
筛分目数 Sieve mesh		-100目 -100mesh		-80目 -80 mesh	-325目 -325mesh
筛分目数 Sieve mesh		筛上物小于5%, Re-inspected plus sieve powder shall be less than 5%.
注：用户如有特殊要求，双方具体商定。 Note: Special requirements will be agreed upon by the supplier and buyer.