C型钢规格表各行数字含义(以C80K40x20X2.5为例)：C80K40x20X2.5:截面高度H=250mm截面宽度B=80m;卷边宽度C=20mm厚度t=3mm规格重量(kg/m)规格重量(kg/m)80X40X20X2.53.925180X60X20X38.00780X40X20X34.71180X70X20X2.57.065100X50X20X2.54.71180X70X20X38.478100X50X20X35.652200X50X20X2.56.673120X50X20X2.55.103200X50X20X38.007120X50X20X36.123200X60X20X2.57.065120X60X20X2.55.495200X60X20X38.478120X60X20X36.594200X70X20X2.57.458120X70X20X2.55.888200X70X20X38.949120X70X20X37.065220X60X20X2.57.4567140X50X20X2.55.495220X60X20X38.949140X50X20X36.594220X70X20X2.57.85160X50X20X2.55.888220X70X20X39.42160X50X20X37.065250X75X20X2.58.634160X60X20X2.56.28250X75X20X310.362160X60X20X37.536280X80X20X2.59.42160X70X20X2.56.673280X80X20X311.304160X70X20X38.007300X80X20X2.59.813180X50X20X2.56.28300X80X20X311.775180X50X20X37.536180X60X20X2.56.673方矩形管基本尺寸与主要参数国标方矩管规格(mm)方矩管规格(mm)50X30X(3—3.5)200X150X850X50X(3—3.5)200X150X1060X60X(3—4)200X150X1270X70X(3—4)200X200X(5—6)30X40X(3—4)200X200X8GB/J6728-2002GB/T6725-200280X80X(3—4)200X200X10100X100X(3—4)200X200X12100X100X5250X150X(5—6)100X100X6250X150X8100X100X7250X150X10120X60X(3—4)250X150X12120X60X5250X200X(5—8)120X80X(3—4)250X200X(10—12)120X80X5250X250X6120X80X6250X250X(8—10)120X80X8250X250X12125X75X(3—4)300X150X(5—6)125X75X5300X150X8150X75X(3—4)300X150X10150X75X5300X150X12150X100X(3—5)300X200X(6—8)150X100X6300X200X10150X100X8300X200X12120X120X(3—6)300X300X(6—8)125X125X(4—6)300X300X(10—12)140X140X(4—6)350X150X6140X140X8350X150X8140X160X(5—6)350X150X10140X160X8350X150X12150X90X6350X350X8150X150X(4—6)350X350X{10—12)150X150X8400X300X8150X150X10400X300X(10—12)160X160X(4—6)400X400X8160X160X8400X400X(10—12)180X180X(4—6)500X300X8180X180X8500X300X(10—12)180X180X10250X450X(8—12)200X95X6125X100X(3—5)200X100X(4—6)250X100X(4—6)200X100X8250X100X8200X100X10250X100X10200X150X(5—6)
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