Scale pattern - Rolling defects

Scale pattern - Rolling defects

Figure 1: a) Scale pattern or breaker-roll scale. b) scale pattern.

Defect name: Scale pattern
Record No.: 348
Type of defect (Internal/Surface): Surface
Defect classification: Rolling defect, pickling defects
Steel name: Steel
Steel composition in weight %: No data.
Note: Transverse bands of broken scale which originate from insuficient loosening of the scale at the processor at the entry of the pickle line. This defect, shown in Figs. 1a and 1b, is also known as 'breaker roll scale'.
Note: Defects arising in pickling.
Reference: Not shown in this demonstration version.