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：Φ2mm~Φ100mm×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 avail Established in 1994, Refractory Metal Developer is one of the largest professional manufacturers and suppliers of niobium alloy composition tube for vacuum furnace industrial application. Leveraging on advanced technology and equipment, our company has successfully exported our products to various buyers from different regions. Now, we warmly welcome you to buy our factory supply refractory metals.
