Name: Niobium Sheet & Foil
Brand: Baoji City Changsheng Titanium Co., Ltd.

Niobium Sheet & Foil

Niobium is a kind of silver grey rear high-melting-point metal with relatively soft texture and ductility. At normal temperature, niobium cannot react with the air, and cannot be completely oxidized in oxygen in the red hot state. Niobium can be directly and chemically combined with sulfur, nitrogen and carbon at high temperature. Niobium cannot react with inorganic acid or alkali, and is insoluble in aqua regia but is soluble in hydrofluoric acid. Niobium features extremely good superconductivity, high melting point, corrosion resistance, wear resistance, etc.

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Specification

Material: RO4200-1, RO4210-2

Standard: As per ASTM B393-98

Purity: ≥99.9%, 99.95%, 99.99%, 99.995%

Size

	Thickness(mm)	Width (mm)	Length (mm)
Foil	0.03-0.09	30-300	>50
Sheet	0.1-0.5	30-800	30-2000
Board	0.5-10	50-1000	50-3000

Chemical composition

Element	Type 1 (RO4200)	Type 2 (RO4210)	Type 3 (RO4251)	Type 4 (RO4261)
Element	％wt., no more than(Max.)
C	0.01	0.01	0.01	0.01
N	0.01	0.01	0.01	0.01
H	0.0015	0.0015	0.0015	0.0015
O	0.015	0.025	0.015	0.025
Zr	0.02	0.02	0.8～1.2	0.8～1.2
Ta	0.1	0.2	0.1	0.2
Fe	0.005	0.01	0.005	0.01
Si	0.005	0.005	0.005	0.005
W	0.03	0.05	0.03	0.05
Ni	0.005	0.005	0.005	0.005
Mo	0.010	0.010	0.010	0.010
Hf	0.02	0.02	0.02	0.02
Nb	balance	balance	balance	balance