Pre-treated spcg cold coil is pre-treated before beingcold rolled with a process known as pickling, which uses strong acids to removescale and other impurities. The Cold Rolled Steel is then passed throughrollers to reduce its thickness.
The more information of pre-treated spcg cold coil shown in the following table SPCG chemical composition
GRADE | C% max | Mn% max | P% max | S% max |
SPCG | 0.02 | 0.25 | 0.020 | 0.020 |
Most cold rolling takes place in multiplepasses and as the size of the Cold Rolled Steel is further reduced, itsstrength and hardness both increase, but pre-treated spcg cold coil ductility decreases.
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