Niobium wire looks like steel &off-white luster for jewelry making

Categories	Niobium Wires
Trademark/Brand	MMR Parts Processing \| Custom Parts Manufacturing
Grade	R04200, R04210
Thickness	0.1mm - 5mm
Standard	ASTMB392
Technology	Cold-Rolled，Hot rolled(R), Annealed (M)
Condition	Hard, Semi-hard, Mild
Surface	polished surface，black surface
Specifications	Industrial,Aerospace,Medical
FOB port	shanghai,Tianjin
Terms of Payment	L/C, D/A, D/P, Western Union
Update Time	Nov 1,2025

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Detail Information

AS a niobium rod supplier ,Our niobium wire for jewelry making for many years. we are niobium wire manufacture aslo provide good services . The following are detail informations about our nionium materials.

Grade	R04200, R04210
Standard	ASTMB392
Diamter	0.1mm - 5 mm
Technology	Hot-Rolled, Cold-Rolled, Hot forging , Machining
Condition	Hard, Semi-hard, Mild
Surface	Polished surface, Black surface
Specifications	Aerospace, Medical, Industrial

Chemical composition

Element	C	O	N	H	Ta	Mo	Nb	Ni	Si	Ti	W
RO4200(% Max)	0.0035	0.012	0.003	0.0012	0.05	0.005	Bal	0.002	0.004	0.002	0.005
RO4210(% Max)	0.0050	0.015	0.008	0.0015	0.07	0.01	Bal	0.005	0.01	0.004	0.02

Physical properties

Grade	Diameter	Tensile strength Min (MPa)	Yield strength Min (MPa) (2%Residual strain)	Elongation Min (%) (25.4mm Gage)

RO4200(% Max),RO4210(% Max)	5mm～90mm	125	85	25

Tolerance (mm)

Diamater	Diamter tolerance
Diamater	Diamter tolerance
0.1～0.2	±0.005
0.2～0.5	±0.007
0.5～0.7	±0.010
0.7～1.5	±0.015
1.5～2.0	±0.020
2.0～3.0	±0.030
3.0～4.0	±0.040
4.0～5.0	±0.050