Special rolled steels

Details Special rolled steels Special rolled steels

1987-06-26

1989-11-21

Yee, Deborah

Metal treatment

Stock

Ferrous

420 68, 420109, 420 70, 420112, C22C 3844

Patent

active

048819913

ABSTRACT:
A steel for the production of as rolled products (products requiring no subsequent reheat treatment after finish rolling) for use in underground equipment and tools is provided which has a hardness in the order of 500 HV (Vickers); a Charpy toughness value at 20.degree.C. of 35 to 50 Joule; an excellent to fair corrosion resistance in simulated mild mine water as herein defined; and good to fair weldability; the steel having the following constitution on a percentage mass per mass basis:

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