Cold-rolled steel plate with smooth surface and excellent processing, used for home appliances such as automobiles, refrigerators, washing machines, industrial equipment, and various building materials. With the development of the economy, cold-rolled steel sheets have been called necessary materials in modern society. Classification of cold-rolled products: hot-rolled pickling, hard-rolled coil, ordinary cold-rolled, galvanized (electro-galvanized, anti-fingerprint, hot-dip galvanized), galvanized, electro-tinned, color-coated, electrical steel (silicon steel sheet) wait. Cold rolled steel coils generally use hot-rolled strip steel with a thickness of 1.5-6 mm as the cold rolled billet. The main processes include pickling, cold rolling, degreasing, annealing, leveling, and shearing (cross cutting, longitudinal cutting). If producing coated plates, there are also plating or coating processes such as electroplating tin, hot tin coating, and hot zinc coating. The production process of cold rolled billets is as follows: hot rolled sheet coils (raw materials) - acid washing - cold rolling - degreasing - annealing - leveling - shearing - finished product delivery.
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Cold Rolled Steel Sheet |
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Grade |
Q195,Q215,Q235,08AL,SPCC,SPCD,SPCE,SPCEN,ST12,ST13,ST14,ST15,ST16,DC01, |
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DC03,DC04,DC05,DC06 |
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Standard |
ISO,JIS,ASTM,AS EN |
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Mechnical |
Commercial / Drawing / Deep Drawing /Extra Deep Drawing/Structural quality |
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Surface treatment |
Chromated and oiled, and ant-ifinger |
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Hardness |
Softy, half hard ,hard quality |
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Thickness |
0.12-6.0mm |
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Width/Length |
10-1500mm/1-12M |
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grade |
Enterprise standard |
Comparable to foreign standards |
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Standard |
Grade |
Standard |
Grade |
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general use |
Q/BQB403 Q/BQB402 |
St12 SPCC |
DIN1623JISG3141 |
St12 SPCC |
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stamping grade |
Q/BQB403 Q/BQB402 |
St13 SPCD |
DIN1623JISG3141 |
St13 SPCD |
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Deep drawing |
Q/BQB403 Q/BQB402 |
St14, (F, HF, ZF)
SPCE (F, HF, ZF) |
DIN1623JISG3141 |
St13 SPCE |
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