石油钻杆接头螺纹尺寸.doc

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1、螺纹代号螺纹牙形螺距mm（每25.4mm的牙数）锥度基面中径C外螺纹锥部大端大径DL外螺纹圆柱根部直径DLF外螺纹锥部小端大径DS外螺纹锥部长度LPC内螺纹有效螺纹长度LBT内螺纹锥部长度LBC内螺纹扩锥孔大端直径QC螺纹公制代号公扣母扣mm数字型（NC）NC23V-0.038R6.350（4）1：659.81765.10061.952.40076.279.492.166.7NC26V-0.038R6.350（4）1：667.76773.05069.960.35076.279.492.174.6NC31V-0.038R6.350（4）1：680.8488

2、6.13183.071.32388.992.1104.887.7NC35V-0.038R6.350（4）1：689.68794.97192.179.09695.298.4111.196.8NC38V-0.038R6.350（4）1：696.723102.00698.885.065101.6104.8117.5103.6NC40V-0.038R6.350（4）1：6103.429108.712105.689.662114.3117.5130.2110.3NC44V-0.038R6.350（4）1：6112.192117.475114.398.425114.

3、3117.5130.2119.1NC46V-0.038R6.350（4）1：6117.500122.784119.6103.734114.3117.5130.2124.6NC50V-0.038R6.350（4）1：6128.059133.350130.4114.300114.3117.5130.2134..9NC56V-0.038R6.350（4）1：4142.646149.250144.9117.500127.0130.2142.9150.8NC61V-0.038R6.350（4）1：4156.921163.525159.2128.600139.714

4、2.9155.6165.1NC70V-0.038R6.350（4）1：4179.146185.750181.4147.650152.4155.6168.3187.3NC77V-0.038R6.350（4）1：4196.621203.200198.8161.950165.1168.3181.0204.8正规型（REG）23/8REGV-0.0405.080（5）1：460.08066.67563.947.62576.279.492.168.32A312A3027/8REGV-0.0405.080（5）1：469.60576.20073.453.97588.

5、992.1104.877.823123031/2REGV-0.0405.080（5）1：482.29388.90086.165.07595.298.4111.190.533133041/2REGV-0.0405.080（5）1：4110.868117.475114.790.475107.9111.1123.8119.143143051/2REGV-0.0506.350（4）1：4132.944140.208137.4110.058120.6123.8136.5141.753153065/8REGV-0.0506.350（4）1：6146.248152.1

6、97149.4131.039127.0130.2142.9154.063163075/8REGV-0.0506.350（4）1：4170.549177.800175.0144.475133.3136.5149.2180.273173085/8REGV-0.0506.350（4）1：4194.731201.981199.1167.843136.5139.7152.4204.4831830贯眼型（FH）27/8FHV-0.0405.080（5）1：485.48092.075-70.075889510594.522122031/2FHV-0.0405.080（

7、5）1：494.844101.448-77.62295.298.4111.1102.83213204FHV-0.0656.350（4）1：6103.429108.712105.689.662114.3117.5130.2110.34A214A2041/2FHV-0.0405.080（5）1：4115.113121.717-96.317101.6104.8117.5123.842142051/2FHV-0.0506.350（4）1：6142.011147.955-126.797127.0130.2142.9150.052152065/8FHV-0.0506

8、.350（4）1：6165.598171.526-150.368127.0130