This post is a little stale, but I will add that hexavalent chrome is the concern when welding and grinding materials containing chrome. Part of the inspection work I do at the refinery is ongoing inspection during weld overlay work inside of vessels. The overlay material generally has a high chrome content. We go over a lot of safety information prior to these jobs, welders who are working continuously in this environment are required to be in enclosed helmets with breathing air supplied from outside the vessel. Personnel such as myself who are in the area periodically can do so with a proper respirator. However, while arc gouging chrome material is in process inside a vessel generally only the welders with the sealed helmets are allowed inside. I’ll attach an OSHA link on hex-chrome.
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Today's Featured Article - Chores - by Frank Young. The ceaseless passing of time! It is at once our friend and our enemy. It measures our progress and it makes us old. Like most features of our life, few things are all good or all bad, and most such judgments depend on our own perspective or viewpoint. In our particular hobby, we enjoy the nostalgic return to the days of our youth as we recreate many of the scenes that took place on the family farm that served as the stage for the first few acts of the play that is our live
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