Steel for rotor shafts of electric machines and method and produ

Details Steel for rotor shafts of electric machines and method and produ Steel for rotor shafts of electric machines and method and produ

1992-03-17

1994-02-22

Yee, Deborah

Alloys or metallic compositions

Ferrous

Rare earth metal containing

420109, 148335, 148540, 148547, C22C 3846, C22C 3844

Patent

active

052884554

ABSTRACT:
New low-alloy steel compositions and rotor shafts for electric machines made from them are described. High nickel and chromium contents ensure high strength and toughness, while other components, notably silicon and other impurities, are kept low with the result that magnetic properties remain good. One aspect provides a steel with the following proportions by weight:

REFERENCES:
patent: 3954454 (1976-05-01), Shaw
patent: 4820486 (1989-04-01), Shimogori et al.
patent: 4985201 (1991-01-01), Chang et al.
patent: 5108699 (1992-04-01), Bodnar et al.
ASTM Standard Specification A469-88 for Vacuum-Treated Steel Forgings for Generator Rotors pp. 271-274.

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