Duplex ferrit IC-martensitic stainless steel

Details Duplex ferrit IC-martensitic stainless steel Duplex ferrit IC-martensitic stainless steel

1976-03-29

1977-09-13

Steiner, Arthur J.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

148 37, C22C 3838

Patent

active

040479412

ABSTRACT:
A ferritic-martensitic duplex stainless steel having properties between those of ferritic and martensitic stainless steels. The steel consists essentially of, by weight, from 11.0 to 20.5% chromium, from 1.0 to 6.5% manganese, from 0.005 to 0.1% carbon, balance essentially iron. The steel is additionally characterized by chromium and manganese contents within Area ABCD of the Figure, and by a chromium equivalency of from 5.0 to 11.0, in accordance with the following equation: ##EQU1##

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