Electroplated Coatings:

The third group of surfaces to be especially careful along are electroplated coatings. These include chrome-plated steel bumpers that have a layer of copper under a layer of nickel under a layer of chrome. Cut them whereas wearing a filter mask, but one is better off not cutting them at all.

Never cut anything which is coated with cadmium or mercury. You are not likely to search mercury coating anything you will cut, but cadmium might occur. This is a highly corrosion resistant silvery electroplated coating sometimes-utilized on bolts, nuts and other kinds of fasteners. Cadmium fumes are more poisonous in compare to lead. Most fastener manufacturers have stopped by using it, but you might still find it in scrap and old parts.

Although this is not a coated metal, beryllium is a material you are never possible to flame-cut (at least not with oxyfuel). Its fumes are extremely poisonous. The only place you are likely to discover beryllium utilized is in beryllium-copper alloys. This high-strength, corrosion-resistant alloys are not very common and may not be flame-cut with the oxyfuel procedure. They are reddish-orange to red-brown- coloured alloys.