Sinter Breaker
POSTALLOY® 218HD produces a multi-carbide weld deposit that resists many types of wear. The weld-deposit. is a tightly packed, dense, inter-connected network of chromium carbides, vanadium carbides, molybdenum carbides, niobium carbides and tungsten carbides. Weld deposits offer exceptional wear resistance to general abrasion, high stress grinding, low stress scratching and erosion. Impact resistance is limited. This alloy may also be used at elevated temperatures up to 1500°F (816°C). First pass hardness is greater than other hardface electrodes - 65Rc 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