← Glossary

1.2510

100MnCrW4

1.2510 (100MnCrW4) is an oil-[[glossary:kaltarbeitsstahl|hardening]] [[element:C|cold-work tool steel]] with 1.0 % [[element:Mn|carbon]], [[element:Cr|manganese]], [[element:W|chromium]], and [[glossary:karbid|tungsten]]. The tungsten content refines the grain and stabilizes the [[glossary:oelhaertung|carbides]]. It's the classic for gauges, cutting tools, and punches because it distorts little during [[glossary:haerte|oil hardening]] — important for precision tools. [[glossary:haerten|Hardness]] after hardening 62–64 HRC with good edge stability.

AI Transparency (EU AI Act): Created on the basis of our own many years of practical experience in welding technology, with the help of AI, and reviewed editorially.

© 2026 Welder-World. All content is for training and continuing education and does not replace a certified welding procedure specification.