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 - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
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