1.2842 DIN O2 Oil Hardening Tool Steel - ISO NQA ...
1 1.2842 Introduction: 1.2842 Cold work tool steels belong to the family of high carbon steels that are further classified into oil-hardening steels, high-carbon, high-chromium steels, and air-hardening steels. Oil-hardening cold-work steels are also known as group O steels consisting of O1, O2, O6, and O7 types.
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