GB708-88冷轧钢板和钢带的尺寸、外形、重量[1]

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1、中华人民共和国国家标准UDC669.14-418冷轧钢板和钢带的尺寸、外形、重量GB708-88及允许偏差代替GB708-65Dimensions´shape´weightandtolerancesforcold-rolledplatesandsheets本标准适用于宽度大于或等于600mm，厚度为0.2～5mm的冷轧钢板和厚度不大于3mm的冷轧钢带。不适用于直接轧制宽度小于600mm窄钢带。1分类和代号1.1按边缘状态分切边Q不切边BQ1.2按轧制精度分较高精度A普通精度B2定义2.1钢板是平板状，矩形的，可直接轧制或用大于600mm宽钢带剪切而成

2、。2.2钢带是指成卷交货，宽度不小于600mm的宽钢带。3尺寸3.1钢板和钢带的厚度、宽度及钢板的长度应符合表1的规定。3.2钢板和钢带的宽度也可为10mm倍数的任何倍尺，钢板长度为50mm倍数的任何倍尺。3.3根据需方要求，经供需双方协商，可以供应其他尺寸的钢板和钢带。4尺寸允许偏差4.1钢板和钢带的厚度允许偏差应符合表2的规定。4.1.1钢带焊缝处20m范围内的厚度允许偏差，当钢带厚度≤1.5mm时，比表2规定值增加100%，当钢带厚度＞1.5mm时，增加60%。4.1.2钢带两端总长度30m内厚度偏差允许比表2规定值超出50%。中华人民共和国冶

3、金工业部1988-02-151989-07-01实施第1页共5页GB708-88表1mm按下列钢板宽度的最小和最大长度公称厚度600650700(710)7508008509009501000110012501400(1420)1500160017001800190020000.200.25120013001400140015001500150015001500150015000.30—————————0.35250025002500250025002500250030003000300030000.400.450.56120013001400140

4、0150015001500150015001500150015000.60————————0.652500250025002500250025002500300030003000300035000.7012001300140014001500150015001500150015001500150020002000——————0.75250025002500250025002500250030003000300030003500400040000.80120013001400140015001500150015001500150015001500200

5、0200020000.90—————1.003000300030003000300030003000350035003500350040004000400040001.11200130014001400150015001500150015001500150015002000200020002000200020001.2——1.33000300030003000300030003000350035003500350040004000400040004000420042001.41.51.612001300140014001500150015001500

6、1500150015001500200020002000200020002500——1.73000300030003000300030003000300030004000400060006000600060006000600060001.82.02.2120013001400140015001500150015001500150015002000200020002000200025002500250025002.5300030003000300030003000300030003000400040006000600060006000600060006

7、000600060002.8120013001400140015001500150015001500150015002000200020002000200025002500250025003.03.2300030003000300030003000300030003000400040006000600060006000275027502750275027503.52000200020002000200025002500250025003.8———————————3.94500450045004750275027502700270027004.0200

8、0200020002000150015001500150015004.2———————————4.54500