Alloys for high creep applications

Details Alloys for high creep applications Alloys for high creep applications

1974-12-17

1976-05-04

Rutledge, L. Dewayne

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291961, 75125, 75128V, 75128W, 138178, F16L 902, C22C 3842

Patent

active

039544214

ABSTRACT:
There is disclosed a ferritic alloy having a high creep resistance particularly suitable for use in the castings, the welding material, and welds of the casings and conductors of apparatus operating at high temperatures, typically steam turbines operating at about 1050.degree.F. This alloy has between about 1% and 2% copper and small but effective quantities of carbon, vanadium, and molybdenum and is low in manganese, silicon, and nickel although nickel is sometimes needed for increased tensile strength and toughness. In modifications or variations of this alloy small but effective quantities of cobalt and tungsten improve creep resistance while chromium is minimized.

REFERENCES:
patent: 2862102 (1958-11-01), Heuschkel
patent: 2968549 (1961-01-01), Brady et al.
patent: 3362811 (1968-01-01), Heuschkel

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