Low thermal expansion cast iron

Details Low thermal expansion cast iron Low thermal expansion cast iron

1989-10-25

1991-09-17

Yee, Deborah

Alloys or metallic compositions

Ferrous

1.7 percent or more carbon containing

420 93, 148324, C22C 3700, C22C 3856

Patent

active

050493540

ABSTRACT:
This invention is directed to a cast iron having a graphite structure in an austenitic iron matrix and consisting essentially of, in weight %, at least about 1.0% and not more than about 3.5% of carbon, not more than about 1.0% of silicon, at least about 29% and not more than about 34% of nickel, at least about 4% and not more than about 8% of cobalt and the balance substantially all iron.

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