焊缝坡口的基本形式和尺寸标准

~1~一、埋弧焊焊缝坡口的基本形式和尺寸：序号工件厚度名称坡口形式和尺寸备注1δ=10Y形坡口10390°90°S=24.5mm2G=0.20kg/m2δ=12双Y形坡口1290°90°3S=40.5mm2G=0.32kg/m3δ=14双Y形坡口90°390°14S=60.5mm2G=0.47kg/m4δ=16～25双Y形坡口70°δ70°3见列表5δ=26双U形坡口26213.245.75.720°20°R5R5S=77.8mm2G=0.61kg/m~2~6δ=28双U形坡口66R5413.222820°20°R5S=89.4mm2G=0.7kg/m7δ=30双U形坡口13.2220°20°6.46.4R530R54S=101.8mm2G=0.8kg/m8δ=32双U形坡口324213.2R5R56.76.720°20°S=115mm2G=0.9kg/m9δ=34双U形坡口4213.2347.17.120°20°R5R5S=128.8mm2G=1.0kg/m~3~10δ=36双U形坡口3615°15°6.26.2413.22R5R5S=127.4mm2G=1.0kg/m11δ=38双U形坡口382R5R513.2415°15°6.56.5S=140.1mm2G=1.1kg/m12δ=40双U形坡口404R5R5213.215°15°6.86.8S=153.4mm2G=1.2kg/m13δ=44双U形坡口444213.2R5R515°15°7.37.3S=181.6mm2G=1.43kg/m14δ=50双U形坡口4213.2R5R515°15°8.18.150R5R5S=227.8mm2G=1.79kg/m~4~15δ=60双U形坡口R5R5410°10°9.19.160S=366.1mm2G=2.87kg/m16δ=70双U形坡口70101010°10°4R5R5S=461.8mm2G=3.63kg/m17δ=80双U形坡口8°9.78°9.7R5R5480S=525.4mm2G=4.13kg/m~5~18δ=12～16带长舌双面单边V形坡口40°40°44δ见列表19δ=18～22带长舌双面单边V形坡口δ4435°35°见列表20δ=24带长舌双面J形坡口30°11.730°R53244S=266mm2G=2.09kg/m21δ=25带长舌双面J形坡口4253R530°30°11.9S=208mm2G=1.63kg/m~6~22δ=28带长舌双面J形坡口12.830°30°R53284S=324.2mm2G=2.54kg/m23δ=30带长舌双面J形坡口4303R530°30°13.4S=355mm2G=2.79kg/m24δ=40带长舌双面J形坡口25°25°4403R514.6S=486.8mm2G=3.82kg/m~7~二、手工电弧焊焊缝坡口的基本形式和尺寸：序号工件厚度名称坡口形式和尺寸备注1δ=6Y形坡口80°622δ=8Y形坡口2870°3δ=10Y形坡口60°1024δ=12Y形坡口50°122~8~5δ=14双Y形坡口21460°680°6δ=16双Y形坡口280°760°167δ=18双Y形坡口21850°875°8δ=20双Y形坡口2850°2075°9δ=22双Y形坡口229270°~9~10δ=24双Y形坡口60°21050°2411δ=25双Y形坡口2511250°12δ=26双Y形坡口50°21150°2613δ=28双Y形坡口2850°12250°~10~14δ=30UY形坡口50°21230R510°10°14.715δ=32UY形坡口R514.710°10°3214250°16δ=34UY形坡口R550°2153410°10°15.117δ=35UY形坡口R515.110°10°3516250°18δ=36UY形坡口R550°2173610°15.1~11~19δ=38UY形坡口R515.410°10°3818250°20δ=40UY形坡口R550°2204010°10°15.421δ=12带长舌双单边V形坡口122250°50°22δ=14～20带长舌双面单边V形坡口45°2245°δ~12~23δ=22带长舌双面单边V形坡口2240°2240°24δ=24带长舌双面J形坡口R511.2242230°30°25δ=25带长舌双面J形坡口2522R530°30°11.526δ=26带长舌双面J形坡口11.830°30°R5222627δ=28带长舌双面J形坡口2822R530°30°12.4~13~28δ=30带长舌双面J形坡口1330°30°R5223029δ=12带长舌单面J形坡口10.2R5231220°30δ=14带长舌单面J形坡口20°1432R510.931δ=16带长舌单面J形坡口1632R511.620°32δ=18带长舌单面J形坡口20°12.3R52318~14~33δ=20带长舌单面J形坡口2032R511.715°34δ=22带长舌单面J形坡口15°12.2R5232235δ=24带长舌单面J形坡口2432R512.715°36δ=25带长舌单面J形坡口15°13R5232537δ=26带长舌单面J形坡口2632R513.315°~15~38δ=28带长舌单面J形坡口15°13.8R5232839δ=30带长舌单面J形坡口3032R514.315°三、CO2焊焊缝坡口的基本形式和尺寸：序号工件厚度名称坡口形式和尺寸备注1δ=6双Y形坡口2670°2δ=8双Y形坡口60°823δ=10双Y形坡口21050°~16~4δ=12双Y形坡口50°1225δ=14双Y形坡口80°50°21466δ=16双Y形坡口716250°70°7δ=18双Y形坡口60°50°21889δ=20双Y形坡口920260°50°~17~10δ=22双Y形坡口2950°2260°11δ=24双Y形坡口2450°10250°12δ=25双Y形坡口50°21150°2513δ=26双Y形坡口2650°11250°14δ=28双Y形坡口50°21250°28~18~15δ=30UY形坡口R514.710°10°3012250°16δ=32UY形坡口R550°2143210°10°14.717δ=34UY形坡口R515.110°10°3415250°18δ=35UY形坡口R550°2163510°10°15.1~19~19δ=36UY形坡口R515.110°10°3617250°20δ=38UY形坡口R550°2183810°10°15.421δ=40UY形坡口R515.410°10°4020250°22δ=12～18带长舌双面单边V形坡口45°δ2245°23δ=20～22带长舌双面单边V形坡口40°2240°δ~20~24δ=24～30带长舌双面J形坡口11.230°30°R522δ25δ=8～10带钝边单边V形坡口2δ45°26δ=12～16带钝边单边V形坡口240°δ27δ=18～20带钝边单边V形坡口δ35°228δ=22带长舌单面J形坡口2232R512.215°~21~29δ=24带长舌单面J形坡口R515°12.7232430δ=25带长舌单面J形坡口R525321315°31δ=26带长舌单面J形坡口15°13.3R5232632δ=28带长舌单面J形坡口2832R513.815°33δ=30带长舌单面J形坡口15°14.3R52330~22~说明：1、坡口形式和尺寸的编制依据了国家标准GB986、GB986和我厂的焊接生产实践。2、焊缝类别和质量要求根据产品的设计和规范规定执行。3、请结合产品的结构特征和质量要求仅供参考使用，并请反馈意见。~23~目录一、埋弧焊焊缝坡口的基本形式和尺寸.............................................1二、手工电弧焊焊缝坡口的基本形式和尺寸.....................................7三、CO2焊焊缝坡口的基本形式和尺寸................................................15