Crack on the work roll surface of 1.5% Cr steel
Grade: 1.5% Cr steel
Chemical composition in weight %: 0.97% C, 0.25% Si, 0.35% Mn, 1.50% Cr
Roll type: Work roll
Diameter(s): No data
Hardness: 58-60 HRC
Roll production method: Forged steel
Defect(s) on the roll(s): Crack on the work roll surface

For making the replica negative image of the defects on the roll surafe we used standard: ASTM E1351-90: Standard Practice for Production and Evaluation of Field Metallographic Replicas.

crack
Fig. 14-1: Crack on the work roll surface (arrow).

SEM
Fig. 14-2: Negative replica SEM image of the crack on the roll surface, Mag. 27X.

SEM
Fig. 14-3: Negative replica SEM image of the crack on the roll surface, Mag. 240X.

SEM Fig. 14-4: Negative replica SEM image of the crack on the roll surface, Mag. 330X.

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