RO4210 niobium rod with polished surface used in precision glass industry&electroacousto-optic device
RO4210 niobium rod with polished surface used in precision glass industry&electroacousto-optic device
RO4210 niobium rod with polished surface used in precision glass industry&electroacousto-optic device
RO4210 niobium rod with polished surface used in precision glass industry&electroacousto-optic device
RO4210 niobium rod with polished surface used in precision glass industry&electroacousto-optic device
RO4210 niobium rod with polished surface used in precision glass industry&electroacousto-optic device

Item specifics

Grade
R04200, R04210
Thickness
5mm - 90mm
Standard
ASTMB392
Technology
Cold-Rolled,Hot rolled(R), Annealed (M)
Condition
Hard, Semi-hard, Mild
Surface
polished surface,black surface
Specifications
Industrial,Aerospace,Medical

Review

Description

AS a niobium bar supplier ,all of our niobium bars have been strictly inspected and the quality is guaranteed. and we aslo provide cutting nionium bar services,and our titanium bar price is competitive, The following are detail informations about our nionium materials.

Grade

R04200, R04210

Standard
ASTMB392

Diamter

5mm - 90 mm

Length

2000mm

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
length tolerance
5~6
±0.05
±2.0
7~10
±0.10
±2.0
11~16
±0.15
±2.0
17~18
±0.15
±2.0
18~25
±0.30
±2.0
26~40
±0.50
±2.0
41~50
±0.60
±2.0
51~65
±0.70
±2.0
66~90
±1.00
±2.0
Testing :
Chemical composition test,
Physical properties test,
Appearance defects inspection,
Ultrasonic flaw detection.

Application :
Iron industry,
Superconducting Material Industry,
Aerospace Industry,
Atomic Energy Industry,
Electronics industry,
Medical field.
Features :
Rare metal with high boiling point, 
Looks like steel, off-white luster, 
Dark gray powder, with air absorption, 
Corrosion resistance, superconductivity, 
Unipolar conductivity and high strength at high temperature.
What we can do for you?
If the above model is not suitable for your workpiece, please tell us your need and then we can send you the most satisfying drawing.
contact us