Description
POSTALLOY 218HD is designed for applications involving severe mineral or earth abrasion at temperatures up to 1400°F (760°C). This unique electrode is actually a combination of five types of carbides, uniformly dispersed throughout the weld metal. Several of these carbides have micro-hardness readings that are harder than tungsten carbide. First pass hardness is greater than other wearfacing electrodes – 63 Rc on mild steel. POSTALLOY 218HD hardfacing electrodes, available in 1/4″(6.0mm) diameter, are a unique concept in hardfacing technology. They are tubular, permitting higher travel speeds and much higher percentages of carbide forming elements contained in the core than with ordinary flux-coated electrodes. Due to its unique tubular design, POSTALLOY 218HD offers very smooth operational characteristics