Heat resisting steel

Details Heat resisting steel Heat resisting steel

1984-05-04

1986-04-29

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75126D, 75128T, 75126P, 75128F, 75126C, 75126E, 75128W, 75128V, C22C 3806, C22C 3828, C22C 3850

Patent

active

045854785

ABSTRACT:
A heat resisting steel suitable for use as the materials of steam turbine casings of steam turbines for thermal power generation. The steel has a composition consisting essentially of 0.05 to 0.2 wt % of C, 0.5 to 2.0 wt % of Cr, 0.5 to 2.0 wt % of Mo, 0.05 to 0.5 wt % of V, 0.002 to 0.1 wt % of Al, 0.0002 to 0.0030 wt % of B and the balance substantially Fe and inevitable impurities, wherein the sum of X and Al as obtained from the following formulae is not greater than 2920:

REFERENCES:
patent: 3403060 (1968-09-01), Ito et al.
patent: 4381940 (1983-05-01), Watanabe et al.

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