BOHLER M238 VMR®
M238 VMR is a 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.
Applications: • Lens mold tooling • Cores, cavities, and inserts for plastic molding where highest polishability and fatigue strength are required
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