Angle profile V50x5 found lamination

Hi there,
I would like to upload a photo of lamination found on angle bar. This defect found during MT for weldment.
Please discuss and share your knowledge about material forming and main causes of occur defects?

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it look like not a lamination tearing, it is base metal (angular V50*5), if lamination tearing, it should be at weld metal or near to weld metal -> base metal defects - related in casting/ rolling progress…

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It may not lamination defects type, most of causes on base metal are impure material.

I agree with the impurity of the base material,

High sulfur content leading to MnS formation in the production process of the BM.
it is recommended to limit Sulfur to <0,01% and look at through thickness mechanical properties.

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