M238 VMR is a vacuum arc remelted, hardened and tempered plastic mold steel with excellent cleanliness for best polishability ideal for lens mold tooling. The hardness is consistent over the entire cross-section of the steel block, even in large sizes, due to the addition of nickel.- Minimum gas contents
- Reduction of trace elements such as Pb, Bi, Te, As, Sn, Sb
- Minimum microsegregations at the center of ingot
- Low susceptibility to the formation of freckles (segregation)
- Highly precise chemical analysis
Applications: Lens mold tooling, mold carrier frames for plastic molds, components for general mechanical engineering and tool manufacture where highest polishability and fatigue strength are required. |
