POSTALLOY® 218HD is designed for applications involving severe mineral or earth abrasion at temperatures up to 1400°F (760°C). This unique tubular hardface 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 hardface electrodes - 63Rc on mild steel. Other outstanding features include:
   • Easy out-of-position weldability with the 1/4" diameter
   • Excellent AC or DC operation, even on a "buzz box"
   • Low amperage and high metal recovery - no slag to chip
   • High deposition rates - up to 3 times faster than ordinary electrodes
   • Moisture resistant coating, even under severe weather or high humidity
POSTALLOY® 218HD hardfacing is a unique concept in hardfacing technology and is over 90% efficient. It is tubular, permitting higher travel speeds and much higher percentages of carbide forming elements contained in the core than with ordinary flux-coated electrodes. The tubular design offers very smooth operational characteristics.