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Pure and high quality niobium & niobium alloy tubes/pipes made in china
niobium pipe specification |
1.Material: RO4200-1, Ro4210-2, Nb1,Nb2
2.Size: Dia:<120mm*length<6000mm
3.Standard: As per ASTM B394-99
4.Purity: >=99.9% or 99.95%
5.ISO9001: 2008 SGS CE
1. Chemical composition:
Chemistry % | |||||||||||||
Designation | Chief component | Impurities maximum | |||||||||||
| 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 | |
2. Niobium and Niobium alloyed tubes and pipes
R04200 -- 1 TYPE -- Reactor class non-alloyed Niobium.
R04210 -- 2 TYPE -- Industrial class non-alloyed Niobium.
R04251 -- 3 TYPE -- Include 1% Zr reactor Niobium alloys.
R04261 -- 4 TYPE -- Include 1% Zr industrial Niobium alloyes.
UNS Designation R05400 -- non-alloyed Tantalum,powder metallurgy,concretion.
UNS Designation R05200 -- non-alloyed Tantalum,vacuum ARC melting.
UNS Designation R05252 -- Ta + 2.5% W alloys,vacuum ARC melting.
UNS Designation R05255 -- Ta + 10% W alloys,vacuum ARC melting.
UNS Designation R05240 -- Tantalum alloys, 60% Ta,40% Nb alloys,electron bombardment or vacuum ARC melting.or both.
niobium pipe photo shows |


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