An alloy composition designed to provide maximum fracture toughness over a full range of service temperatures normally encountered in forging applications.

High Nickel Content
Nickel is unique among alloying additions in steel. It is a natural ferrite strengthener that strongly enhances fracture toughness.

Lower Carbon Content
The lower Carbon content, relative to most die steels, favors higher fracture toughness over heat and abrasion resistance.

Extremely Low DBTT (Ductile Brittle Transition Temperature)
The combination of lower Carbon and higher Nickel content of this grade offers excellent ductility and fracture toughness at all service temperatures; even under startup conditions in unheated environments.

Machinability
Machinability at all hardness levels is enhanced through patented micro-alloying additions, but where maximum machinability is desired, a fully annealed condition (approximately 229 HB) is available.