{"id":1898,"date":"2019-03-21T11:15:26","date_gmt":"2019-03-21T10:15:26","guid":{"rendered":"https:\/\/www.vecom-group.com\/en\/?post_type=technical-bulletin&#038;p=1898"},"modified":"2021-03-29T09:49:36","modified_gmt":"2021-03-29T07:49:36","slug":"removal-of-heat-tints-on-stainless-steel","status":"publish","type":"technical-bulletin","link":"https:\/\/www.vecom-group.com\/en\/technical-bulletin\/removal-of-heat-tints-on-stainless-steel\/","title":{"rendered":"Removal of heat tints on stainless steel"},"content":{"rendered":"<h2>Chemical surface treatment is preferable<\/h2>\n<p>During welding of stainless steels, coloured surface oxide films may be developed in case a perfect inert gas protection (such as Argon) is missing. 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