Forging materials contain an elevated amount of nitride forming elements such as chromium, vanadium, and molybdenum. These types of nitrides have excellent thermal stability up to 1100°F. They increase hardness and abrasion resistance of the tool after nitriding without significantly reducing its impact properties. Such tools after UltraGlow® Ion Nitriding can have a very high hardness if required (i.e. up to 70 HRC equivalent) as shown in Figure 1.
Forging die during UltraGlow® Ion Nitriding.
Forging die after UltraGlow® Ion Nitriding.