C/R
This standard provides a visual comparison guide that can be used to specify surface discoloration (heat-tint) criteria for sanitary (hygienic) welds in austenitic stainless steel tube.
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Guide to Weld Discoloration Levels on Inside of Austenitic Stainless Steel Tube
American Welding Society , 01/01/1999
This standard provides a visual comparison guide that can be used to specify surface discoloration (heat-tint) criteria for sanitary (hygienic) welds in austenitic stainless steel tube.