Product name: Niobium tube
Executive standard: GB/T8183-1987.
Grade: RO4200-1, RO4210-2
Specification: Diameter: φ2.0-100mm
Thickness: 0.2-5.0mm
Length: 200mm-8000mm
Capillary tube size specification: Outside diameter Φ0.2~Φ8mm, wall thickness T0.015~0.5mm.
Maximum accuracy: Outer diameter Φ±0.003mm, wall thickness T±0.005mm, length L±0.05mm.
Appearance: When observed under microscope, the inner and outer surface of the tube shows uniform metallic luster without oxidation, hydrogenation discoloration, scratch, deformation, burr, etc.
Ingredient Description:
Ingredients % | ||||||||||||
Brand | Main ingredients | Other impurities | ||||||||||
Nb | Fe | Si | Ni | W | Mo | Ti | Ta | O | C | H | N | |
Nb1 | Remaining | 0.004 | 0.004 | 0.002 | 0.005 | 0.005 | 0.002 | 0.05 | 0.012 | 0.0035 | 0.0012 | 0.003 |
Nb2 | Remaining | 0.01 | 0.01 | 0.005 | 0.02 | 0.01 | 0.004 | 0.07 | 0.015 | 0.0050 | 0.0015 | 0.005 |
If the user has special requirements, the parties specifically agreed to.
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Physical properties.
Standard number | Tensile strength, lb/in2 (MPa) | Yield strength (0.2% of residual deformation) £/in2 (MPa) | Elongation, %.1″ (2.54cm) pitch |
RO4200-1
RO4200-2 |
18000 (125) | 12000 (85) | 25 |
Uses: Niobium and niobium alloy tubes have high melting point, corrosion resistance, good cold working properties, etc. They are widely used in the chemical industry, electronics industry, aviation
In the aerospace industry, it is mainly used to make high-pressure sodium lamps, structural materials for aviation and aerospace engines, reaction vessels for chemical processes, heat exchanger tubes, internal elements of reactors
The material is used in the production of the niobium and zirconium alloys. The addition of zirconium to niobium can significantly improve the oxidation resistance and strength of the material, and currently niobium-zirconium alloys are
Manufactured into capillary tubes to supply the sodium lamp manufacturing industry.