Pure Niobium Bar

Material Grade: RO4200 RO4210 Nb1

Purity: ≧99.95% 99.99%

Density: ≥8.7g/cm3

Standard: ASTM B392

Applications: Used in the processing of niobium parts, electronic equipment, high-pressure sodium lamps, heating parts for vacuum blast furnaces, heat insulation parts, and widely used in aviation, aerospace industry, medical equipment and other fields.

 

1. High temperature strength: pure niobium rod has good high temperature strength and can bear large load force under high temperature environment.

 

2. Good corrosion resistance: pure niobium rods have good corrosion resistance and can resist the erosion of many chemical substances.

 

3. Excellent mechanical properties: pure niobium bar has high mechanical strength and stiffness, which makes it able to withstand large load force and resist deformation.

 

4. Good electrical properties: pure niobium rods have good conductivity and superconductivity, and are widely used in the electronics industry and energy field.

 

5. Easy processing: pure niobium rod is easy to cut and drill, and can carry out a variety of complex processing, such as stretching, stamping and so on.

 

6. Good stability: pure niobium rod has good chemical and thermal stability, is not prone to oxidation and deformation, can maintain its original performance for a long time.

 

Metal element content, unit（ppm）

Element	Content	Element	Content	Element	Content
Fe	<100	Mo	<100	Ta	<2000
Ni	<50	Si	<50	Hf	<200
W	<50	Zr	<200	Nb	余量

 

 

Gas element content , unit（ppm）

Element	Content	Element	Content
C	<100	N	<100
O	<250	H	<15

 

 

Annealed niobium bar, mechanical properties

Tensile strength（MPa）	Yield Strength （MPa）	Elongation ≧% mm
125	73	25

 

Allowable diameter tolerance of niobium bar and niobium wire:

 

Diameter（mm）	Tolerance±（mm）
0.254~0.51	0.013
0.51~0.76	0.019
0.76~1.52	0.025
1.52~2.29	0.038
2.29~3.18	0.051
3.18~4.750	0.076
4.750~9.53	0.102
9.53~12.70	0.127
12.70~15.9	0.178
15.9~19.1	0.203
19.1~25.40	0.254
25.40~38.10	0.381
38.10~50.80	0.508
50.80~63.50	0.762

 

 

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