Halcomb 425 is designed for higher operating temperatures than H13, where wear resistance and heat check resistance are more critical than toughness. While H19 has excellent heat checking resistance, drastic cooling (flooding, dunking) should be avoided due to the risk of thermal shock. Halcomb 425 may be used for tool temperatures up to about 1100F, with brief exposures up to about 1200/1250F.Information provided by Crucible Industries |