Category of Molybdenum Bar

According to different chemical content and application, molybdenum bar can be divided into Mo-1, Mo-2, Mo-3 and Mo-4.

Mo-1 can be used for drawing ordinary molybdenum wire, making glass fiber electrode, steel-making additive; Mo-2, Mo-3 can be used as raw material for milled finished products; Mo-4 can be used as the steel-making additive.

Following is a table to show molybdneum category in detail (impurities content which accords with GB3462-82 standard):

Grade		Mo-1	Mo-2	Mo-3	Mo-4
Content of moly(%)≧		99.95	99.8	99.5	99.5
Other Elements≦ (%)	Pb	0.0001	0.0001	0.0001	0.0001
	Bi	0.0001	0.0001	0.0001	0.0005
	Sn	0.0001	0.0001	0.0001	0.0005
	Sb	0.0005	0.0005	0.0005	0.0005
	Cd	0.0001	0.0001	0.0001	0.0005
	Fe	0.005	0.005	——	——
	Ni	0.003	0.003	0.003	——
	Si	0.002	0.002	——	0.005
	Mg	0.002	0.002	——	——
	P	——	0.001	——	——
	C	——	0.005	0.005	——
	O	——	0.003	0.003	0.007
	N	0.003	0.003	——	——