Select-Arc Inc. (www.select-arc.com) has introduced two complex carbide hardsurfacing electrodes that are said to extend typical wear life by 33 percent over standard chromium carbide alloys.

SelectWear 63 is an open arc wire produced to yield a deposit of primary chromium carbides and secondary columbium carbides in a martensitic matrix. Its weld deposit delivers high abrasion resistance with moderate impact and will stress relief crack check. SelectWear 63 maintains hardness (60 to 63 HRC as deposited) and wear resistance to 1,400 F.

SelectWear 65 electrodes are composed of a high density of primary chromium carbides and multiple secondary carbides. Like SelectWear 63, this wire will stress relief crack check and provides even higher temperature hardness (61 to 65 HRC as deposited) and wear resistance to 1,500 F.

Both SelectWear 63 and SelectWear 65 are for welding applications such as clad wear plate, slurry pipe and fan and mixer blades. SelectWear 63 also can be used for grinding rolls and table segments and aggregate screens while SelectWear 65 is used to weld of cement furnace components, sinter plant parts and screws.