Tungsten Bar Grades

Details: Category: Tungsten Information; Published on Monday, 29 September 2014 10:08

Tungsten bar grades can be dicided by the content the purity of tungsten.

GRADE		W1	W2	W3	W4
Purity (%) min.	W	99.95	99.95	99.70	99.00
IMPURITY (ppm) max.	Fe	50	50	100	500
	Ni	30	30	50	3000
	Al	20	20	50	50
	Si	30	30	100	100
	Ca	30	30	50	50
	Mg	20	20	50	100
	Mo	100	100	2000	2000
	P	10	10	20	50
	C	50	80	100	100
	O	30	30	50	80
	N	30	30	---	---
	Pb	1	1	1	10
	Bi	1	1	1	10
	Sn	3	3	3	10
	Sb	10	10	10	10
	As	20	20	20	20
Application		Tungsten-base alloy Material	Processing Material	Processing Material	Alloy Addition

tungsten bar grade

Grades		WB-1	WB-2	WB-3	WB-4	Typical-1	Typical-2
Impurities %,max	Pb	--	--	--	0.001	--	0.001
	Bi	--	--	--	0.001	--	0.001
	Sn	--	--	--	0.001	--	0.001
	As	--	--	--	0.002	--	0.001
	Fe	0.005	0.005	0.010	0.05	0.005	0.020
	Ni	0.003	0.003	0.005	0.30	0.002	0.005
	Al	0.002	0.002	0.005	0.005	0.001	0.003
	Si	0.003	0.003	0.010	0.010	0.0015	0.002
	Ca	0.003	0.003	0.005	0.005	0.002	0.005
	Mg	0.002	0.002	0.005	0.010	0.001	0.001
	Mo	0.010	0.010	0.20	0.20	0.003	0.050
	P	0.001	0.001	0.002	0.005	0.001	0.001
	C	0.005	0.008	0.010	0.010	0.003	0.003
	O	0.003	0.003	0.005	0.008	0.003	0.008
	N	0.003	0.003	--	--	0.003	--
	Sb	--	--	--	0.001	--	0.0005
Uses		Material for making tungsten alloy	For Processing material	For processing material	For processing material	For processing material	For alloy additive

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