商品描述：产品名称：钽 丝执行标准：B365-98产品规格：￠0.25~￠3mm钽 丝牌号： RO5200, RO5400, RO5252(Ta-2.5W), RO5255(Ta-10W)规格: ￠0.25~￠3mm执行标准: ASTM B365-98成份说明：成份 %牌号主要成份杂质含量 不大于TaNbFeSiNiWMoTiNbOCHNTa1剩余——0.0050.0050.0020.0060.0060.0020.040.020.010.00150.01Ta2剩余——0.030.010.0020.020.010.0050.10.030.010.00150.01TaNb3剩余＜3.50.030.010.0020.020.010.005——0.030.010.00150.01TaNb20剩余17.0～23.00.030.030.0020.040.030.005——0.030.010.00150.01Ta2.5W剩余0.0050.0050.00230.010.0020.040.020.010.00150.01Ta10W剩余0.0050.0050.002110.010.0020.040.020.010.00150.01用户如有特殊要求，双方具体商定公差范围：直径, 英寸 (毫米)公差, /-英寸 (毫米)0.010~0.020 excl (0.254~0.508)0.0005 (0.013)0.020~0.030 excl (0.508~0.762)0.00075 (0.019)0.030~0.060 excl (0.762~1.524)0.001 (0.025)0.060~0.090 excl (1.524~2.286)0.0015 (0.038)0.090~0.125 excl (2.286~3.175)0.002 (0.051)0.125~0.187 excl (3.175~4.750)0.003 (0.076)0.187~0.375 excl (4.750~9.525)0.004 (0.102)0.375~0.500 excl (9.525~12.70)0.005 (0.127)0.500~0.625 excl (12.70~15.88)0.007 (0.178)0.625~0.750 excl (15.88~19.05)0.008 (0.203)0.750~1.000 excl (19.05~25.40)0.010(0.254)1.000~1.500 excl (25.40~38.10)0.015 (0.381)1.500~2.000 excl (38.10~50.80)0.020 (0.508)2.000~2.500 excl (50.80~63.50)0.030 (0.762)机械性能（退火态）棒材,直径 0.125英寸(3.18毫米)~2.5\" (63.5毫米)牌号极限抗拉强度最小，磅/英寸2（兆帕）屈服强度最小，磅/英寸2（兆帕）伸长率，最小%（1英寸标距）RO5200/RO540025000 (172)15000 (103)25RO525240000 (276)28000 (193)20RO525570000 (482)55000 (379)20RO524040000 (276)28000 (193)25丝材, 直径, 英寸 (毫米)牌号直径,英寸 (毫米)极限抗拉强度最小，磅/英寸2（兆帕）伸长率，最小%RO5200/RO54000.010(0.254)~0.0149(0.379)35000 (241)100.015(0.381)~0.0249(0.633)35000 (241)150.025(0.635)~0.124(3.14)30000 (207)20RO52520.010(0.254)~0.0149(0.379)40000 (276)50.015(0.381)~0.0249(0.633)40000 (276)100.025(0.635)~0.124(3.14)40000 (276)15RO52550.010(0.254)~0.0149(0.379)70000 (482)50.015(0.381)~0.0249(0.633)70000 (482)100.025(0.635)~0.124(3.14)70000 (482)15RO52400.010(0.254)~0.0149(0.379)35000 (241)100.015(0.381)~0.0249(0.633)35000 (241)150.025(0.635)~0.124(3.14)35000 (241)2010英寸（254毫米）标距适用于0.050英寸(1.27毫米) 直径者; 1英寸(25.4毫米)或2英寸(50.8毫米)标距适用于大于0.050英寸(1.27毫米) 直径者。如有特殊要求，双方具体商定