螺栓规格及扭矩对照表.docx

螺栓规格及扭矩对照表添加时间：[2009-7-25]点击数：764按螺栓，螺母的尺寸及强度等级，确定扳手使用最大扭矩，在处理具体联接时，应确认工程的制造商的使用参数。六角尺寸S（mm）螺纹尺寸D（mm）六角尺寸J（mm）17M10819M121022M141224M161427M181430M201732M221736M241941M271946M302250M332455M362760M3927（30）65M423270M45-75M483680M523685M564190M604695M6446100M6850105M7255110M7660115M8065120M8570130M9070（75）135M95-145M10085150M105-155M110-165M115-170M120-180M125-185M130-200M140-210M150-重要：下表列出的六角尺寸仅用于参考。在特定系统中的特别尺寸应单独检查。六角尺寸S（mm）螺纹尺寸D（mm）六角尺寸J（mm）11/16"5/8"1/2"11/4"3/4"5/8"17/16"7/8"3/4"15/8"1"3/4"113/16"11/8"7/8"2"11/4"7/8"23/16"13/8"1"23/8"11/2"1"29/16"15/8"-23/4"13/4"11/4"215/16"17/8"13/8"3"2"11/2"31/8"2"15/8"33/8"21/4"13/4"31/2"21/4"13/4"33/4"21/2"13/4"37/8"21/2"17/8"41/8"23/4"2"41/4"23/4"2"45/8"3"21/4"5"31/4"21/4"重载套筒必须符合：ISO2725，ISO1174，DIN3129DIN3121，ASME-B107.2/1995选择扳手时请务必注意拆松扭矩强度等级4.86.88.810.912.9最小破断强度392Mpa588Mpa784Mpa941Mpa1176Mpa材质一般构造用钢机械构造用钢铬铝合金钢镍铬铝合金钢镍铬钼合金钢螺栓螺母对边扭矩值扭矩值扭矩值扭矩值扭矩值NmNmNmNmNmM14226998137165225M162498137206247353M1827127206284341480M2030176296402569480M2232225333539765911M24363144706869811176M2741441637102914721764M3046588882122519622352M33507351127147020602450M36559801470176424532940M396011761764215629433626M426515192352274438264606M457017642744313644155390M487522543430392055926664M528027444116470465738330M5685352851495978843710290M60904018597877421079113230M649549987448882012600-M68100568485261078015400-M72105646898001264218060-M761107350107801470021000-M801158143122501813025900-M851208820137202205031500-M9013010584161702450035000-M1001451372020090---M1101551636624990---M1201751989429890---1、以上是德国工业标准，表中扭矩为螺栓达到屈服极限的70%时所测定。2、建议锁紧力矩值为：表中数值×（70-80）%例如：M48,8.8级螺栓，则锁紧力矩为：3920×80%=3136Nm3、拆松力矩为锁紧力矩的1.5-2.5倍。例如：上例锁紧力矩为3136Nm，则其拆松力矩约为3136×(1.5-2.5)=4704-7840Nm