Graphite Roller Cold Rolled Coil

The steel strip occurs mostly at the edge of the steel strip due to the damage formed during the lifting process.

The hook strip shape appears continuously along the rolling direction of the steel strip. In the case where the re-rolled material is not padded, the defect is more likely to occur.

Periodic pits or convex hulls appear on the surface, and severe roll marks cause the strip to pass through.

GRADE	C% max	Mn% max	P% max	S% max	Alt% min	Ti max
SC2	0.06	0.35	0.025	0.025	0.015	0.20

The strip weld is too high or the cleaning is uneven, causing the sticking roller when rolling. The hard metal (bead, metal scrap, etc.) or dirt is stuck on the roller. When rolling or leveling, the hard object or the dirt is pressed. On the surface of the strip, leaving an indentation.

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