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允许偏差GBT7062008
型号
允许偏差GBT7062008
H型钢允差GBT112632005
高度h腿宽b腰厚d平均腿厚t规格尺寸mm允许偏差mm5503745706363404875±15±15±0465654043758804350801010048538512120535590±20±20±0512612653559014a14058609514b14060809516a1606365100161606585100±20±25±05⑥18a180687010518180709010520a200737011020200759011022a220777011522220799011524a240787012024b240809012024c2408211012025a250787012025b2508090120±30±30±0725c2508211012027a270827512527b270849512527c2708611512528a280827512528b280849512528c2808611512530a300857513530b300879513530c3008911513540a4001001051840b40010212518±40±40±09①40c40010414518
附：槽钢平均腿厚bd2处的允许偏差为±6t；腰弯曲挠度不应超过15腰厚；外形每米弯曲度不大于3mm总弯曲度不大于长度的03；槽钢不得有明显的扭转。
等边角钢允差GBT7062008
型号尺寸（∠bbd）∠25253∠25254∠30303∠30304∠40403∠40404∠40405∠50505∠63636∠63638∠70706∠70707∠70708∠75756∠75757∠75758∠80806∠80807∠80808∠808010∠90908∠909010∠1001006∠1001007∠1001008∠10010010∠10010012∠12512510∠14014010∠16016010∠18018012∠18018014∠20020014∠20020016等边角钢顶端直角允许偏差90度±50；等边角钢每米弯曲度不大于3mm，5号以上等边角钢总弯曲度不大于总长度的030；等边角钢不得有明显的扭转。②±25±10±18±07±12±06±08±04允许偏差mm边宽度b边厚度d型号尺寸（∠Bbd）∠63405∠75506∠75508∠90566∠90567∠90568∠100637∠100638∠100808∠125807∠125808∠1258010∠140908∠1409010∠1409012∠16010010∠16010012∠18011010∠20012512∠20012514
高度h腿宽b腰厚d平均允许偏差mm高度h腿宽b腰厚d腿厚度t100684576I10120745084I12±20126745084I126±20±05140805591I14160886099I16±251809465107I1820010070114I20a20010290114I20b22011075123I22a22011295123I22b24011680130I24a240118100130I24b±30±0725011680130I25a250118100130I25b27012285137I27a270124105137I27b28012285137I28a±30280124105137I28b30012690144I30a300128110144I30b300130130144I30c32013095150I32a320132115150Ir