(5) CADWELD weld metal is a mixture of copper oxide and aluminum, pack aged by size in plastic tubes. Each tube contains the starting powder at the bottom of the plastic tube, with the weld metal on top. These containers are packaged, with metal disks, in polyethylene boxes. The welding metal cannot ignite spontaneously. They can be handled and stored without danger and can be shipped with no special packaging or marking.
Two types of CADWELD weld metal are used for cathodic protection connectors:
F-33 alloy is used for all connections of cable to cable and cable to steel or stainless steel pipe.
The F-33 weld metal containers have green caps.
XF-19 alloy is used for all connections to cast ...
