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1、附录 A：表 A.1 普通钢结构用碳钢、低合金钢螺栓紧固扭矩螺栓规格螺距扭矩系数：0.15,螺栓使用系数：60%90%螺栓材料屈服强度对边尺寸3.6级4.6级5.6级5.8级6.8级8.8级9.8级10.9 级12.9 级最小最大推荐最小最大推荐最小最大推荐最小最大推荐最小最大推荐最小最大推荐最小最大推荐最小最大推荐最小最大推荐M611022.942.472.63.923.263.34.914.114.46.545.475.27.856.525710.58.757.911.89.859.814.712.2511.817.714.75M81.25134.77.115.96.39.487.897.
2、911.99.9010.515.813.1512.71915.8516.925.321.118.928.423.6523.735.529.628.542.735.6M101.5179.514.311.912.719.115.915.923.819.921.231.826.525.438.131.833.950.842.438.157.247.6547.771.559.657.285.871.5M121.751916.324.420.421.732.627.227.140.733.936.254.345.343.465.154.357.986.972.465.197.781.481.312210
3、1.798147123M14222263932.534.75243.443.36554.257.786.672.269.310486.792.7139116104156130130195163156234195M1622439.959.949.953.379.966.666.599.883.288.7133111106.7160133142213178160240200199.3299249239.3359299M182.5275582.568.873.311091.792138115122183153146.7220183195.3293244220330275275.34133443304
4、95413M202.5307811798104156130130195163173.3260217208312260277.3416347312468390390585488468702585M222.532105.3158132140.7211176176264220234.7352293281.3422352375.3563469422.7634528528792660633.3950792M24336134.7202168180270225224.7337281299.3449374359.3539449479.3719599539.38096746741011843808.712131
5、011M27341198.7298248265.3398332331.3497414442663553530795663706.71060883795.31193994994149112431192.717891491M303.546270405338360540450450675563600900750720108090096014401200108016201350135020251688162024302025M333.550366.7550458489.3734612611.3917764815.312231019978146712231304195616301467.32201183
6、41834275122932200.733012751M36455472708590629.3944787786.711809831048.7157313111258.718881573167825172098188828322360236035402950283242483540M39460612.7919766817.3122610221021.3153212771362204317031634.7245220432179.3326927242452367830653064.745973831367855174598M424.565759.311399491012151812651265.
7、3189815821686.7253021082024303625302699.3404933743036.7455537963795.3569347444554.768325693M454.570950142511881266.7190015831583.3237519792111.3316726392533.3380031673378506742233800.7570147514750.7712659385700.785517126M485751144171614301525.3228819071906.7286023832542381331783050.7457638134067.361
8、0150844576686457205720858071507284109269105M525801473.3221018421964.7294724562456368430703274.7491240933930589549135239.3785965495894.788427368736811052921088421326311053M565.5851824.7273722812433.3365030423041.3456238024055.3608350694866.7730060836488.79733811173001095091259124.71368711406109501642
9、513688M605.5902269.3340428373025.3453837823782567347285042.7756463036050.790767563806812102100859076136141134511345.3170181418213614.72042217018M646952733.3410034173644546645554555.3683356946073.39110759272881093291109717.3145761214710932163981366513665.32049817082163982459720498M6861003308.74963413
10、64411.3661755145514827168937352.71102991918822.7132341102811764176461470513234198511654316542.7248142067819851.32977724814螺纹副扭矩系数及扭矩调整系数螺纹副润滑状态扭矩系数扭矩调整系数黑化，干燥0.251.6黑化+机械油0.201.3磷化+机械油0.191.3二硫化钼润滑脂0.151.0热镀锌，干燥0.302.0螺栓扭矩值基于工程常用短公式：螺栓扭矩(NM)=扭矩系数X螺栓载荷(KN)X螺栓直径(mm)。螺栓直径大于 M27 的，螺栓与螺母之间必须使用垫片。该表仅适用于新螺栓、螺母。附录 A：表A.2普通钢结构用不锈钢螺栓紧固扭矩螺栓规格扭矩 系数：0 16, 螺栓使 田 系数：60%90%螺栓卡材料屈 服强度螺距对边尺寸A250，A450 级A270A470 级A280，A480 级最小最大推荐最小最大推荐最小最大推荐丿刃、1 1 / y u i 口M61102 74 13 45 27 86 527 811 69 7M81 25136 610 08 312 619 015 818 928 323 6M101 51713 319 916 625 037 631 337 956 947 4M121 751
