螺纹连接设计简介

1、螺纹规格螺纹规格M3M3.5M4M5M6/M7M8M10M12螺螺 距距0.50.60.70.81.01.251.51.75螺纹规格螺纹规格M14/M16M18/M20M22M24/M27M30M33M36M39螺螺 距距2.02.52.53.03.53.54.04.0螺纹规格螺纹规格M8M10M12M14M16M18M20M22M24M27M30M33M36M39螺螺 距距11.01.0(1.25) (1.5)1.5(1.5)1.5(1.5)2.0(2.0)2.0(2.0)3.03.0螺距螺距2(1.25)1.52.0(2.0)3.0螺纹规格螺纹规格螺距螺距P中径中径D2/d2小径小径D1/

2、d1螺纹规格螺纹规格螺距螺距P中径中径D2/d2小径小径D1/d1M50.84.4804.134M121.7510.86310.1060.54.6754.4591.511.02610.376M61.05.3504.9171.2511.18810.6470.755.5135.1881.011.35010.917M81.257.1886.647M142.012.70111.8351.07.356.9171.513.02612.3760.757.5137.1881.013.35012.917M101.59.0268.376M162.014.70113.8351.259.1888.6471.515.0

3、2614.3761.09.3508.9171.015.35014.9170.759.5139.188内螺纹材质内螺纹材质螺纹长度螺纹长度L/螺纹外径螺纹外径D钢钢0.800.80以上以上 ( (目标值目标值1.0)1.0)铸铁铸铁1.01.0以上以上 ( (目标值目标值1.25)1.25)铝合金铝合金1.25以上以上 (目标值目标值1.5)粉末冶金粉末冶金1.25以上以上 (目标值目标值1.5)测试项目测试项目(Test Item)(Test Item)强度等级强度等级6.76.76.86.88.88.8L L50mm50mmL50mmL50mm拉伸强度拉伸强度ProductProduct拉伸

4、强度拉伸强度MPaMPaMinMin588588784784Wedge Wedge tensiletensile屈服极限屈服极限在两端测试在两端测试412412471471628628硬度硬度心部硬度心部硬度维氏硬度维氏硬度HVHVMinMin178178243243MaxMax270270320320洛氏硬度洛氏硬度HRBHRBMinMin8888MaxMax102102HRCHRCMinMin2121MaxMax3232表面硬度表面硬度维氏硬度维氏硬度HVHVMaxMax350350螺栓头部强度（螺栓头部强度（Strength of head percussionStrength of h

5、ead percussion）头部本体及连接部无破坏头部本体及连接部无破坏螺纹细部尺寸螺纹细部尺寸E mmE mmMinMin1/2H1/2HG mmG mmMaxMax0.0150.015测试项目测试项目(Test Item)(Test Item)强度等级强度等级6.76.76.86.88.88.810.910.9L L50mm50mmL50mmL50mm拉伸极限拉伸极限ProductProduct拉伸强度拉伸强度MPaMPaMinMin588588784784980980Wedge tensileWedge tensile屈服极限屈服极限在两端测试在两端测试4124124714716286

6、28882882硬度硬度心部硬度心部硬度维氏硬度维氏硬度HVHVMinMin178178243243302302MaxMax270270320320372372络氏硬度络氏硬度HRBHRBMinMin8888MaxMax102102HRCHRCMinMin21213030MaxMax32323838表面硬度表面硬度维氏硬度维氏硬度HVHVMaxMax350350390390螺栓头部强度（螺栓头部强度（Strength of head percussionStrength of head percussion）头部本体及连接部无破坏头部本体及连接部无破坏螺纹细部尺寸螺纹细部尺寸E mmE mmM

7、inMin1/2H1/2H1 12/3H2/3H1 1G mmG mmMaxMax0.0150.015测试项目测试项目(Test Item)(Test Item)强度等级强度等级10.910.9拉伸极限拉伸极限ProductProduct拉伸强度拉伸强度MPaMPaMinMin981981Wedge tensileWedge tensile屈服极限屈服极限在两端测试在两端测试883883硬度硬度心部硬度心部硬度维氏硬度维氏硬度HVHVMinMin302302MaxMax372372络氏硬度络氏硬度HRCHRCMinMin3030MazMaz3838表面硬度表面硬度维氏硬度维氏硬度HVHVMax

8、Max372372螺栓头部强度（螺栓头部强度（Strength of head percussionStrength of head percussion）头部本体及连接部无破坏头部本体及连接部无破坏螺纹细部尺寸螺纹细部尺寸E mmE mmMinMin2/3H2/3H1 1G mmG mmMaxMax0.0150.015强度等级强度等级6 68 8螺纹规格螺纹规格屈服极限屈服极限Proof load stressProof load stressMPaMPa屈服极限屈服极限Proof load stressProof load stressMPaMPa4 45 55885886 6141478

9、5785螺母的厚度螺母的厚度标准厚度标准厚度螺母件号（简略号）螺母件号（简略号）9994299942（9WC9WC）9994699946（9WG9WG）9994999949（9WK9WK）9094990949（9WX9WX）9094890948（9WJ9WJ）标称规格标称规格M8-M12M8-M12M10-M12M10-M12M12M12保证荷重应力（最小）保证荷重应力（最小）MPaMPa80080010001000540540硬度硬度HVHV272-353272-353HRCHRC28-3828-38标称规格标称规格评价条件评价条件相对于等效断面的保证荷重应力相对于等效断面的保证荷重应力保证

10、荷重应力保证荷重应力 MPaMPa80080010001000800800100010008008001000100080080010001000锁付轴力锁付轴力 kgkg拧紧及拧松力矩拧紧及拧松力矩 NmNm1 1回目拧紧力矩回目拧紧力矩( (以下以下) ) 1 1回目拧松力矩回目拧松力矩( (以上以上) )5 5回目拧松力矩回目拧松力矩( (以上以上) )M6M61 1887887127012703.03.04.04.00.450.450.550.550.30.30.40.4M8M81.251.2516201620232023206.06.08.08.00.850.851.151.150.

11、60.60.80.8M10M101.251.25271027103890389010.510.514141.51.52.02.01.01.01.41.4M12M121.251.25408040805840584015.515.521212.32.33.13.11.61.62.12.1MMCMMC系列系列MESMES和和GBGB系列系列备注备注4T4T4.84.86T6TL50mmL50mm6.86.8L L50mm50mm6.76.77T7T8T8T8.88.810T10T10.910.912T12T12.912.9强度等级强度等级温度温度 +20+20+100+100+200+200+250

12、+250+300+300屈服强度屈服强度 MPaMPa8.88.864064059059054054051051048048010.910.994094087587579079074574570570512.912.91100110010201020925925875875825825强度等级强度等级材材 料料对应标准对应标准热处理热处理4.84.8SWRM10SWRM10JIS G 3505JIS G 3505S10CS10C、S12CS12CJIS G 4051JIS G 40516.76.76.86.8SWCH25KSWCH25KJIS G 3539JIS G 3539S25CS25CJ

13、IS G 4051JIS G 4051TS25C-CTS25C-CMES MM 220MES MM 2208.88.8TSMn122HX-CTSMn122HX-CMES MM 221MES MM 221回火温度回火温度460460或更高或更高TSMn125HX-CTSMn125HX-C回火温度回火温度480480或更高或更高SWCH38K to SWCH45KSWCH38K to SWCH45K或相当品或相当品JIS G 3539JIS G 3539淬火后回火淬火后回火SWCH38A to SWCH45ASWCH38A to SWCH45A或相当品或相当品S43C to S45CS43C to

14、 S45CJIS G 4051JIS G 405110.910.9SCr430SCr430JIS G 4104JIS G 4104TSCr430TSCr430MES MM 224MES MM 224SCM435SCM435JIS G 4105JIS G 410512.912.9材料材料热处理热处理对应规格对应规格SWRM10SWRM10无无JIS G 3505JIS G 3505（软钢线材）（软钢线材）SWCH8R-20RSWCH8R-20RJIS G 3539JIS G 3539（冷间压造用碳素钢线）（冷间压造用碳素钢线）S15C-S25CS15C-S25CJIS G 4051JIS G 4

15、051（机械构造用碳素钢钢材）（机械构造用碳素钢钢材）S40C-S45CS40C-S45C有有JIS G 4051JIS G 4051强度等级强度等级材料材料热处理热处理对应规格对应规格6 6、8 8SWRM10SWRM10无无JIS G 3505JIS G 3505SWCH8R-17RSWCH8R-17RJIS G 3539JIS G 3539S15C-S25CS15C-S25CJIS G 4051JIS G 4051M M F F ZnZn T1T1C CH1H1镀层类型镀层类型基材基材镀层规格镀层规格磷酸盐转化膜磷酸盐转化膜颜色颜色镀层厚度镀层厚度（mm Min Min）防腐蚀性能要求（

16、防腐蚀性能要求（h Minh Min）盐雾试验时间盐雾试验时间白锈生成时间白锈生成时间红锈生成时间红锈生成时间电镀锌电镀锌钢或铁钢或铁MFZnT1-WMFZnT1-W白色白色（GlossGloss）5 54848MFZnT2-WMFZnT2-W8 89696MFZnT3-WMFZnT3-W1313144144MFZnT1-CMFZnT1-C彩色彩色5 57272120120MFZnT2-CMFZnT2-C8 8168168MFZnT3-CMFZnT3-C1313192192MFZnT5-CMFZnT5-C2525336336MFZnT1-BMFZnT1-B黑色黑色5 57272（4848） 1

17、20 120（9696） MFZnT2-BMFZnT2-B8 8 168 168（144144）MFZnT3-BMFZnT3-B1313 192 192（168168）MFZnT5-BMFZnT5-B2525336336MFZnT1-GMFZnT1-G绿色绿色5 5120120168168MFZnT2-GMFZnT2-G8 8288288MFZnT3-GMFZnT3-G1313360360MFZnT5-GMFZnT5-G2525480480Copper Copper its its alloy alloy MBZnT1-CMBZnT1-C2 2除氢脆时间除氢脆时间Treating TimeTr

18、eating Time（MinMin）除氢脆规格除氢脆规格（Treating SymbolTreating Symbol）适用零件例适用零件例2h2hH1H18.88.8，10.9 10.9 螺栓螺栓3h3hH2H212.9 12.9 螺栓螺栓4h4hH3H3弹簧、弹簧垫圈弹簧、弹簧垫圈 Fdn材质材质铝合金铝合金S10CSS400PS45C调质调质铸铁铸铁铸件铸件热处理热处理抗拉强度抗拉强度 MPa182228346400721228容许面压容许面压 MPa160200300320900400螺栓强度等级螺栓强度等级6.86.88.88.810.910.912.912.9螺母强度等级螺母强度

19、等级4 4、6 66 6。8 86 6。8 8、10108 8。1010备注备注ClassificationClassificationApplicable PartsApplicable Parts拧紧力矩拧紧力矩螺纹部件螺纹部件被连接部件被连接部件普通六角头蚴栓普通六角头蚴栓普通螺栓普通螺栓普通螺母普通螺母普通螺栓普通螺栓带内螺纹部件带内螺纹部件螺柱螺柱普通螺母普通螺母带普通外螺纹部件带普通外螺纹部件普通螺母普通螺母钢铁或非钢铁质材料钢铁或非钢铁质材料Table 2Table 2涂螺纹胶普通六角头螺栓涂螺纹胶普通六角头螺栓同上（普通六角头螺栓涂螺纹胶）同上（普通六角头螺栓涂螺纹胶）钢铁或非

20、钢铁质材料钢铁或非钢铁质材料Table 2-1Table 2-1Impact TighteningImpact Tightening普通螺栓普通螺栓(PC6)(PC6)普通螺栓普通螺栓普通螺母普通螺母普通螺栓普通螺栓带内螺纹部件带内螺纹部件钢铁或非钢铁质材料钢铁或非钢铁质材料Table 2-2Table 2-2法兰面螺栓法兰面螺栓/ /法兰面螺母法兰面螺母法兰面螺栓法兰面螺栓普通螺母普通螺母法兰面螺栓法兰面螺栓带内螺纹部件带内螺纹部件法兰面螺母法兰面螺母普通螺栓普通螺栓钢铁或非钢铁质材料钢铁或非钢铁质材料Table 3Table 3同普通六角头螺栓同普通六角头螺栓钢铁或非钢铁质材料钢铁或非钢铁

21、质材料及及Table 4Table 4FlareFlare螺母螺母FlareFlare螺母螺母带外螺纹部件带外螺纹部件Table 4Table 4普通螺栓普通螺栓 螺母螺母带普通外螺纹部件带普通外螺纹部件 螺母螺母钢铁或非钢铁质材料钢铁或非钢铁质材料Table 5Table 5螺柱螺柱螺柱（拧紧侧）螺柱（拧紧侧）带内螺纹部件带内螺纹部件钢铁或非钢铁质材料钢铁或非钢铁质材料Table 6Table 6薄型螺母薄型螺母普通螺栓普通螺栓薄型螺母薄型螺母带普通外螺纹部件带普通外螺纹部件薄型螺母薄型螺母钢铁或非钢铁质材料钢铁或非钢铁质材料根据螺母厚度调根据螺母厚度调整力矩整力矩Taper Pipe Th

22、readTaper Pipe ThreadTaper Pipe Taper Pipe 外螺纹外螺纹 Taper Pipe Taper Pipe 内螺纹内螺纹Taper Pipe Taper Pipe 外螺纹外螺纹 Parallel Pipe Parallel Pipe 内螺纹内螺纹Table 7Table 7螺纹规格螺纹规格螺母高度螺母高度mmPC4.8PC6.7/6.8PC8.8标准值标准值范围范围轴力轴力kN标准值标准值范围范围轴力轴力kN 标准值标准值范围范围轴力轴力kNM3M30.50.52.40.70.6-0.80.881.00.9-1.31.57M4M40.70.73.21.51.

23、3-1.91.472.42.0-2.92.35M5M50.80.84.02.92.5-3.52.354.53.9-5.93.82M6M61 154.94.2-6.23.437.86.9-9.85.398.87.8-11.86.28M8M81.251.256.511.89.8-14.76.0818.615.7-22.69.8121.617.7-26.511.4M10M101.251.25823.519.6-28.410.337.331.4-46.116.543.136.3-53.919.0M12M121.251.251040.234.3-50.014.8163.754.9-80.423.674.

24、562.8-93.227.4M14M141.51.51189.275.3-10329.0120102-13738.7M16M161.51.513136116-15739.0183156-21152.1M18M181.51.516196167-22650.5260221-29967.4M20M201.51.516273231-31463.5362308-41784.6M22M221.51.518369314-42478.0490417-564104M24M241.51.518476404-54693.8632536-727126螺纹标称规格螺纹标称规格PC6.7/6.8PC6.7/6.8标准拧紧

25、力矩标准拧紧力矩拧紧力矩范围拧紧力矩范围M3M30.50.50.90.99,7-1.19,7-1.1M4M40.70.72.02.01.7-2.51.7-2.5M5M50.80.83.83.83.2-4.73.2-4.7M6M61 16.46.45.4-7.85.4-7.8M8M81.251.2515.715.712.7-19.612.7-19.6M10M101.251.2530.430.426.5-38.226.5-38.2M12M121.51.5535345.1-66.745.1-66.7螺纹标称规格螺纹标称规格拧紧力矩范围拧紧力矩范围螺纹标称规格螺纹标称规格拧紧力矩范围拧紧力矩范围M3M

26、30.50.50.8-1.40.8-1.4M6M61 16.9-11.86.9-11.8M4M40.70.72.0-3.42.0-3.4M8M81.251.2515.9-27.515.9-27.5M6M60.80.83.9-6.93.9-6.9M10M101.251.2532.4-55.932.4-55.9强度等级强度等级M5M50.80.8M6M61 1M8M81.251.25M10M101.251.25M12M121.251.25M14M141.51.5PC6.7/6.8PC6.7/6.84.5-6.54.5-6.57.8-10.87.8-10.818.6-25.518.6-25.537.

27、3-52.037.3-52.063.9-89.263.9-89.289.0-11789.0-117PC8.8PC8.88.8-12.78.8-12.721.6-30.421.6-30.443.1-60.843.1-60.874.5-10574.5-105120-155120-155PC10.9PC10.928.6-39.828.6-39.856.1-78.556.1-78.596.9-13696.9-136标称螺纹规格标称螺纹规格M6M61 1M8M81.251.25M10M101.01.0M10M101.251.25M12M121.01.0M12M121.51.5M14M141.51.5M1

28、6M161.51.5拧紧力矩拧紧力矩标准值标准值7.47.411.311.314.714.719.619.629.429.439.239.2范围范围5.9-8.85.9-8.88.8-13.78.8-13.711.8-17.711.8-17.715.7-23.515.7-23.5 23.5-35.323.5-35.331.4-41.731.4-41.7螺纹规格螺纹规格M5M5M6M6M8M8M10M10M12M12M14M14M16M16M18M18M20M20拧紧力矩拧紧力矩0.50.51.01.02.02.02.92.94.94.96.96.99.89.812.712.714.714.7螺纹规格螺纹规格M5M5M MM8M8M10M10M12M12M14M14标准值标准值2.32.33.93.99.39.318.618.632.432.445.645.6范围范围2.0-2.92.0-2.93.4-4.93.4-4.97.8-11.87.8-11.815.7-23.515.7-23.527.5-40.227.5-40.239.2-52.039.2-52.0螺纹规格螺纹规格PT1/8PT1/8PT1/4PT1/4PT3/8PT3/8PT1/2PT1/2标准值标准值14.714.725.525.542.242.263.763.7拧紧力矩范围拧紧力矩范围11.8-17.711.8-1