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Cold-rolled steel sheet is produced from hot-rolled steel by cold rolling at room temperature, with common grades including SPCC, DC01, and ST12. It offers high surface quality, precise dimensional accuracy, and excellent formability, meeting customers’ strict requirements for surface finish and thickness tolerance.
In terms of applications, cold-rolled steel is widely used in automotive manufacturing, home appliance shells, office furniture, and stamping parts. For example, SPCC is used for computer chassis and refrigerator panels, DC01 for automotive interior parts and oil drums, and ST12 for deep-drawn parts such as fuel tanks and lamp housings. Customers often focus on the material’s ductility and tensile strength to ensure no cracking during stamping.
Cold-rolled leveled steel sheet can be further galvanized or painted to enhance corrosion resistance, but how to balance cost and weatherability to meet long-term outdoor use requirements?
Technical Standards for cold rolled steel coi | |||||
grade |
Zhengde enterprise standard |
Comparable to foreign standards |
illustrate |
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Standard |
Grade |
Standard |
Grade |
||
general use |
Q/BQB403 Q/BQB402 |
St12 SPCC |
DIN1623JISG3141 |
St12 SPCC |
For general forming processing such as refrigerators and other home appliance shells, oil barrels, and steel furniture. |
stamping grade |
Q/BQB403 Q/BQB402 |
St13 SPCD |
DIN1623JISG3141 |
St13 SPCD |
Steel for stamping and forming processes such as automobiles, home appliances, and construction. |
Deep drawing |
Q/BQB403 Q/BQB402 |
St14, (F, HF, ZF)SPCE (F, HF, ZF) |
DIN1623JISG3141 |
St13 SPCE |
Automobile headlights, fuel tanks, car doors, windows and other steels for deep drawing and forming. |
Steel for extra deep drawing |
Q/BQB403 |
St15 St14T |
Car headlights, complex underbody panels, oil pans. |
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