Baoji Refractory Metal Developer Co.,Ltd UR

Baoji Refractory Metal Developer Co.,Ltd is one of the leading China niobium tube manufacturers and suppliers, and as a professional company we have productive factory, welcome to wholesale niobium tube, niobium pipe products from us.? Chemical Composition:? ? ? ?Chemistry ? ? ? ? %GradeNbImpurities ?maxZrTiCNOHTaFeSiWNiMoCrNb1Remainder0.020.0020.010.0150.0150.0010.100.0050.0050.030.0050.0100.002Nb2Remainder0.020.0050.020.050.0250.0050.250.030.020.050.010.0500.01?? Specification??2mm~?100mm?0.2~5.0mm?L<1300?? Tolerance?Outside diameter,inch (mm)OD tolerance,inch(mm), +/-ID tolerance,inch(mm), +/-Permissible variation in wall thickness,%, +/-?0.187~0.625(4.7-15.9)?0.004 (0.010)?0.004 (0.010)10?0.625~1.000(15.9-25.4)?0.005 (0.13)?0.005 (0.13)10?1.000~2.000(25.4-50.8)?0.0075 (0.19)?0.0075 (0.19)10?2.000~3.000(50.8-76.2)?0.010(0.25)?0.010(0.25)10?3.000~4.000(76.2-101.6)?0.0125 (0.32)?0.0125 (0.32)10Note:Special demands on tolerance available.?

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