Alloy steel roll caster shell

Details Alloy steel roll caster shell Alloy steel roll caster shell

1995-07-26

1997-02-04

Yee, Deborah

Alloys or metallic compositions

Ferrous

Chromium containing, but less than 9 percent

492 54, 428681, 428683, C22C 3844, C22C 3846

Patent

active

055994970

ABSTRACT:
An alloy steel having particular utility for roll caster shells used in the direct casting of molten aluminum to sheet, consisting essentially of, in weight %, 0.25-0.45% C, 1.75-3.75% Cr, 0.75-2.5% Mo, 0.35 to 0.8% V, 0.4-1% Mn, greater than 0.4-1% Ni, 0.02% max P, 0.02% max S, up to 0.35% Si and balance essentially Fe. Roll caster shells fabricated from the steel have excellent toughness and ductility at room temperature to enable a greater shrink-fit with the core. The shells also have good resistance to heat checking. The excellent properties are provided by a controlled amount of Mo.sub.2 C and VC as well as limiting the amount of C in solution.

REFERENCES:
patent: 4409027 (1983-10-01), Cordea et al.
patent: 4802528 (1989-02-01), Terrasse et al.
patent: 5265332 (1993-11-01), Hartz
patent: 5316596 (1994-05-01), Kataoka

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