冷连轧碳素钢板及钢带 标准（Standard for cold rolled carbon steel sheet and strip）.doc

冷连轧碳素钢板及钢带 标准（Standard for cold rolled carbon steel sheet and strip） Cold rolled carbon steel sheet and strip (Q/BQB 4022003 instead of Q/BQB 402-1999) 1 range This standard specifies the classification and code name, size, shape, weight, technical requirements, inspection and test, packing, marking and quality certificate of carbon steel sheets and strips for cold rolling. This standard applies to the cold rolled carbon steel plate and steel strip of the thickness of 0.30mm ~ 3.5mm produced by Baoshan Iron Steel Co (hereinafter referred to as steel plate and steel strip). 2 normative reference documents The terms in the following documents are referenced by this standard and become the provisions of this standard. Fordated documents, subsequent amendments (excluding corrections) or revisions do not apply to this standard, however, encourage the latest version of the parties to agreements based on this standard using these files. Any undated reference document whose latest edition is applicable to this standard. Chemical analysis of GB/T 2221984 sampling steel method and refined chemical composition allowable deviation GB/T 223 methods for chemical analysis of iron, steel and alloy Test method for room temperature tensile testing of GB/T 228-2002 metal materials GB/T 2301991 metal Rockwell hardness test method Test method for bending of GB/T 2321999 metal materials GB/Tsteel and steel products mechanical performance test sampling position and sample preparation Vivtorinox GB/T 4340.11999 metal hardness test - part first: Test methods GB/Trounding Packing, marking and quality certification of Q/BQB 4002003 cold rolled products Q/BQB 4012003 cold rolling steel plate and strip size, shape, weight and tolerances The measurement method of SAE J9111998 cold-rolled steel plate and the surface roughness and peak number 3 Classification and designation 3.1 steel plates and steel belts are to be differentiated by use, as specified in table 1. Table 1 Brand