J BT6686-199312-角头法兰面螺栓.pdf

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1、J13JB/T6686－199312角头法兰面螺栓1993-06-01发布1994-01-01实施中华人民共和国机械工业部发布中华人民共和国机械行业标准JB/T6686－199312角头法兰面螺栓本标准适用于燃气轮机动力装置。d1≈0.95s注：d1为倒角圆的直径。标记：螺纹规格d=M16，螺栓长度l=100mm，材料为30CrMnSi的12角头法兰面螺栓的标记示例螺栓JB/T6686—93—M16×100·30CrMnSi表1mm螺纹规格dM6M8M10M12（M14）M16（M18）max1.902.1

2、43.524.355.155.946.91cmin1.651.893.224.054.795.586.55max9.5012.6014.3019.0021.4023.8026.20dcmin9.1412.1713.8718.4820.8823.2825.68max6.008.0010.0012.0014.0016.0018.00dsmin5.857.859.8511.8213.8215.8217.82emin8.109.2011.5013.8016.2019.6021.90基本尺寸6.408.009.501

3、2.7015.0015.9018.00kmax6.518.119.6112.8315.1316.0318.13min6.297.899.3912.5714.8715.7717.87max7.008.0010.0012.0014.0017.0019.00smin6.857.859.8511.8213.8216.8218.79机械工业部1993-06-01批准1994-01-01实施1JB/T6686－1993续表1mm螺纹规格dM6M8M10M12（M14）M16（M18）max0.400.400.500.8

4、00.800.801.00rmin0.280.280.380.550.550.550.75Z1.01.21.52.02.5螺纹规格dM20（M22）M24（M27）M30（M33）M36max6.825.907.987.989.219.6210.82cmin6.466.547.357.358.789.1910.39max28.6033.3038.1038.1042.8047.5052.30dcmin28.0832.6837.4837.4842.1846.8851.56max20.0022.0024.0027

5、.0030.0033.0036.00dsmin19.7921.7923.7926.7929.7932.7535.75emin21.9025.4027.7027.7034.6036.9041.60基本尺寸19.0022.2025.4025.4028.7031.8035.00kmax19.1622.3625.5625.5628.9632.0035.20min18.8422.0425.2425.2428.5431.6034.80max19.0022.0024.0024.0030.0032.0036.00smin1

6、8.7921.7923.7923.7929.7931.7535.75max1.001.001.201.201.401.601.60rmin0.750.750.950.951.151.351.35Z2.53.04.05.0螺纹规格d（M39）M42（M45）M48（M52）max12.7112.5615.6516.1016.10cmin12.2812.1315.1315.5815.58max57.0061.7066.5076.0076.00dcmin56.2660.9665.7675.2675.26max39

7、.0042.0045.0048.0052.00dsmin38.7541.7544.7547.7551.70emin47.3047.3053.1057.7057.70基本尺寸38.1041.2044.5050.8050.80kmax38.3041.4044.7051.0351.03min37.9041.0044.3050.5750.57max41.0041.0046.0050.0050.00smin40.7540.7545.7549.7549.75max1.801.802.002.202.20rmin1.55

8、1.551.751.821.82Z5.06.0技术条件按JB/T6688—1993的规定。2JB/T6686－1993表2mm螺纹规格d1M6M8M10M12（M14）M16（M18）M20偏差b（不包括螺尾）基本尺寸minmax109.7110.291211.6512.35（14）13.6514.351615.6516.35（18）17.6518.352019.5820.42（22）21.5822.422524