Specs : according to ASTM B 394 -99 R04210
Temper condition: annealed
Chemical composition :
C 0.01%max
N 0.01%max
O 0.025%max
H 0.0015%max
Zr 0.02%max
Ta 0.3%max
Fe 0.01%max
Si 0.005%max
W 0.05%max
Ni 0.005%max
Mo 0.02%max
Hf 0.02%max
Ti 0.03%max
Al 0.005%max
Nb Remainder (99.90%MIN)
Physical & Mechanical property :
Tensile strength 125 MPa min.
Yield strength 85 MPa min.
Elongation 25%min
Size available :
1.0mm up to 38.10mm Outside Diameter x 0.2mm up to 5 mm Wall Thickness x 100mm up to 6000mm Length for Niobium Seamless Tube;
40mm up to 170 mm Outside Diameter x 1mm up to 5 mm Wall Thickness x 100mm up to 6000mm Length for Niobium Welded Tube;
Typical size :
O.D 4.0mm x Wall thickness 1mm x Length 150mm,
O.D 4.0mm x Wall thickness 1mm x Length 700mm,
O.D 6.35mm x Wall thickness 1mm x Length 1200mm,
O.D 10mm x Wall thickness 0.5mm x Length 1000mm,
O.D 12.7mm x Wall thickness 1mm x Length 1000mm,
O.D 15.875mm x Wall thickness 0.508mm x Length 178.943mm,
O.D 16mm x Wall thickness 0.5mm x Length 1000mm,
O.D 20mm x Wall thickness 1.0mm x Length 150mm,
O.D 20mm x Wall thickness 1.0mm x Length 1000mm,
O.D 22mm x Wall thickness 1.0mm x Length 150mm,
O.D 22mm x Wall thickness 1.0mm x Length 1200mm,
O.D 25mm x Wall thickness 1.0mm x Length 1000mm,
O.D 27mm x Wall thickness 1.0mm x Length 1000mm,
O.D 27mm x Wall thickness 1.0mm x Length 150mm,
O.D 32mm x Wall thickness 1.0mm x Length 1000mm,
Standard Specification ASTM B 394 -03 for Niobium Tube + Niobium Alloy Tube Seamless and Welded.
This specification covers niobium and niobium alloy seamless and welded tubes of the following grades:
1. ASTM B 394 -03 UNS R04200 -Type 1, Reactor grade unalloyed niobium;
2. ASTM B 394 -03 UNS R04210 -Type 2, Commercial grade unalloyed niobium;
3. ASTM B 394 -03 UNS R04251 -Type 3, Reactor grade niobium alloy containing 1% zirconium;
4. ASTM B 394 -03 UNS R04261 -Type 4, Commercial grade niobium alloy containing 1% zirconium;
