Customer Responsibility It is the customer’s responsibility to specify whether a flat-rolled product must be “Pit Free”  after polishing. Pit Free standards require specialized polishing processes and more stringent inspection criteria than standard grit or industry finishes. Diamond Brite Metals recommends that customers specify a maximum Roughness Average (RA)  requirement when ordering a Pit Free finish. 1. Standard Industry or Grit Finishes A standard industry finish  (e.g., #4, #6) or...

Annealing Annealing is a heat treatment process mainly used in metallurgy to increase the ductility and reduce the hardness of a...

Hemming and seaming are two similar metalworking processes, where a sheet of metal edge is rolled over and over onto itself until it...