Vacuum carburizing steel

Metal treatment – Compositions – Heat treating

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148 166, 148 167, C21D 148

Patent

active

043869734

ABSTRACT:
A method of carburizing steel comprising carburizing steel under vacuum utilizing as the carburizing gas an aliphatic alcohol having 1 to 4 carbon atoms, preferably methanol and natural gas additions.

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patent: 4249965 (1981-02-01), Schultz

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