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关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf
1钻铤的尺寸规格外径D内径长度Lmm台肩倒角直径DFmm参考的弯曲钻铤螺纹型号d强度比mminmminNC23-3179.431/831.811/4915076.22.57:1NC26-35(23/8IF)88.931/238.111/2915082.92.42:1NC31-41(27/8IF)104.841/850.829150100.42.43:1NC35-47120.743/450.829150114.72.58:1NC3850(31⑵F)127.0557.221/49150121.02.38:1NC44-60152.4657.221/49150或9450144.52.49:1NC44-62158.861/457.221/49150或9450149.22.91:1NC46-62(4IF)158.861/471.429150或9450150.02.63:113/16NC46-65(4IF)165.161/257.221/49150或9450154.82.76:1NC46-65(4IF)165.161/271.429150或9450154.83.05:113/16NC46-67(4IF)171.463/457.221/49150或9450159.53.18:1NC50-67(41/2IF)171.463/471.4213/169150或9450159.52.37:1NC50-70(41/2IF)177.8757.221/49150或9450164.72.54:1NC50-70(41/2IF)177.8771.4213/169150或9450164.72.73:1NC50-72(41/2IF)184.271/471.4213/169150或9450169.53.12:1NC50-77196.873/471.429150或9450185.32.70:1NC50-80203.2871.465/8REG209.681/471.4NC61-90228.6971.475/8REG241.391/276.2NC70-97247.693/476.2NC70-100254.01076.285/8REG279.41176.213/16213/169150或9450190.13.02:1213/169150或9450195.72.93:1213/169150或9450212.73.17:139150或9450223.82.81:139150或9450232.62.57:139150或9450237.32.81:139150或9450266.72.84:1外径0D屈服强度o0MP机械性能（钻铤）抗拉伸强长度率b4Mp%a布氏硬度HB夏比冲击功AKVJmm79.4-171.4ininch>75>931/8-63/4865>1螺纹连接部位应力分散槽285-341>54177.8-279.47-1130内螺纹圆柱内螺纹圆柱外螺纹槽直可替代内螺纹台肩内螺纹台肩段直径段后的锥孔径Dg+0,面至力分散槽长度钻铤螺纹类型面至后一牙Deb锥度+0Lrg长度+0±1.59mm+0.40,-0±20.83-0.79-3.18mmmm/mmmmmNC3582.682.15166.6782.1585.73NC38(31/2IF)88.988.11166.6789.3092.08NC44101.6101.60166.67106.36104.78NC46(4IF)101.6106.76166.67109.93104.78NC50(41/2IF)101.6117.48166.67120.65104.78NC56114.3121.84250.00134.14117.48NC61127.0132.95250.00149.25130.18NC70139.7152.00250.00171.05142.8865/8REG114.3134.14166.67137.72117.4875/8REG120.7133.35250.00162.72123.8385/8REG123.8149.25250.00184.94127.00注：NC23、26、31与23/8IF螺纹因壁薄而不带连接部位应力分散模槽
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