All Categories > Niobium > Niobium and Niobium Alloy Seamless Tubes > Item # NBTU4000 All CategoriesAll Categories NiobiumNiobium Niobium and Niobium Alloy Seamless TubesNiobium and Niobium Alloy Seamless Tubes Item # NBTU4000 Item # NBTU4000, 4.000 Inch (in) Common Outer Diameter Niobium and Niobium Alloy Seamless Tube NBTU40004.000 Inch (in) Common Outer Diameter Niobium and Niobium Alloy Seamless Tube Request Information Email This Page Download PDF Download PDF Printable Page Close Window Unit of Measure Imperial Metric Both Available Sizes | Specifications | Common Specifications | Available Purities | Note Available Sizes Common Outer Diameter N/A 4.000 in101.600 mm Wall Thickness1 N/A Custom Specifications Length2 N/A Custom Material N/A Niobium Niobium Alloy Type N/A Tube Common Specifications Common Specifications N/A ASTM B394 R04210 - Commercial GradeASTM B394 R04200 - Reactor GradeASTM B394 R04261 - Commercial Grade Nb1%ZrASTM B394 R04251 - Reactor Grade Nb1%ZrASTM B394 R04220 - RRR 300 Grade Pure Niobium Available Purities Available Purities N/A 3N5 Grade (99.95% Pure) - 500ppm Max Metallics, exclude Ta (Ta <= 1200ppm) Note Note N/A StandardNot all Sizes are Available for all Metals 1 Please Specify 2 Please Specify