Filo di niobio 99,95% di elevata purezza

Pure niobium block for sale
     Niobium is a gray-white metal with a melting point of 2468 ° C, a boiling point of 4742 ° C, and a density of 8.57 grams per cubic centimeter. Niobium is stable in air at room temperature and does not oxidize completely at red heat in oxygen. It can be directly combined with sulfur, nitrogen and carbon to form alloys with titanium, zirconium, hafnium and tungsten at high temperature. It does not react with inorganic acids or bases, nor is it soluble in aqua regia, but soluble in hydrofluoric acid.

Item Name	astm b394 nb1 pure niobium wire price per kg
Surface	Polished,bright
Material	99.95%min Nb
Shape	wire
Color	Silver Gray
Standard	ASTM B393
Density	8.6g/cm3
Feature	High Strength
size	1mm
Packing	Wooden Case Packing
Application	jewelry maketing, Industry, superconducting material

Mechanical requirements (annealed condition):

Grade	Tensile strength δb	Yield strength	Elongation in 1"/2"
	psi (MPa), ≥	δ0.2, psi (MPa),≥	gage length, %, ≥
RO4200-1	18000 (125)	12000 (85)	25
RO4210-2

Chemistry%
Designation	Chief component		Impurities  maxmium
	Nb	Fe	Si	Ni	W	Mo	Ti	Ta	O	C	H	N
Nb1	Remainder	0.004	0.003	0.002	0.004	0.004	0.002	0.07	0.015	0.004	0.0015	0.002
Nb2	Remainder	0.02	0.02	0.005	0.02	0.02	0.005	0.15	0.03	0.01	0.0015	0.01