Specifications

1.Material: RO4200-1, RO4210-2A
2. Purity :> =99.95%.
3.withstand the corrosion of strong acid, strong acid

 

Niobium rods  Niobium alloy rods:

Material:  RO4200-1, RO4210-2

Size:      4~100mm

Standard:  As per ASTM B392-98

Purity:        >=99.9%  or  99.95%

 

Chemical Element (weight %, max.)
UNS	Type	C	O	N	H	Ta	Fe	Ti	W	Mo	Si	Ni	Zr	Nb
R04210	Pure	0.004	0.015	0.003	0.0015	0.05	0.004	0.002	0.005	0.005	0.004	0.002	/	Bal.
R04261	Nb-Zr	0.004	0.015	0.003	0.0015	0.05	0.004	0.002	0.005	0.005	0.004	0.002	1.00	Bal.
/	Nb-Zr	0.004	0.015	0.003	0.0015	0.05	0.004	0.002	0.005	0.005	0.004	0.002	10.0	Bal.

 

 

 

 

Table.1 Chemical composition:

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

 

Table 2. Mechanical requirements (annealed condition)

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

 

 

 

 

 

 

 

 

Hengxin Metal is specialized in supplying high purity tantalum and niobium semi-finished products such as plate, sheet, rod, tube, wire, fasteners, crucible, sputtering target, etc. for chemical, high temperature, electronics and other industy.

 

Pure metal: Niobium (99.9%, 99.95%), Tantalum (99.9%, 99.95%)

Alloy: Nb-1%Zr, Nb-10%Zr, Nb-47%Ti, Ta-2.5%W, Ta-10%W

Shape: rod, bar, plate, sheet, foil, tube, wire, crucible, boat, fastener, sputtering target, customer-design shape

Standards: ASTM B392, 393, 394, ASTM B708, 365, 521...