US2757084A - Alloy compositions - Google Patents

Alloy compositions Download PDF

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Publication number
US2757084A
US2757084A US510030A US51003055A US2757084A US 2757084 A US2757084 A US 2757084A US 510030 A US510030 A US 510030A US 51003055 A US51003055 A US 51003055A US 2757084 A US2757084 A US 2757084A
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Prior art keywords
alloy compositions
alloy
amounts
alloys
iron
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US510030A
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Arthur T Cape
Charles V Foerster
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Coast Metals Inc
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Coast Metals Inc
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Priority to US510030A priority Critical patent/US2757084A/en
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/007—Alloys based on nickel or cobalt with a light metal (alkali metal Li, Na, K, Rb, Cs; earth alkali metal Be, Mg, Ca, Sr, Ba, Al Ga, Ge, Ti) or B, Si, Zr, Hf, Sc, Y, lanthanides, actinides, as the next major constituent

Definitions

  • Range Preferred Preferred Range Alloy 2,757,084 lr atented July 31, 1956 excellent resistance to lead oxide corrosion, and have excellent oxidation resistance up to the softening point of the alloys.
  • the alloys have relatively low melting points (1875 F.2125 E), and have excellent flow characteristics, and are therefore easily applied, flowing in a desired manner during application.
  • the alloys are extremely tough, and have a hardness range, in a welded section, which varies from about 450 Knoop on the low side of the above range to about 900 Knoop at the high side of the range.
  • the alloys may be used in the form of weld rods, powder, castings, etc., and are also suitable for brazing steels, stainless steels, high alloys, etc.
  • Alloy compositions which are especially adapted for hard facing, said compositions consisting of cobalt in amounts of from about 30% to about boron in amounts of from about 2% to about 4%, nickel in amounts of from about 30% to about 50%, and silicon in amounts of from about 2.5% to about 5.5%, the remainder being substantially all iron, and the cobalt and iron being present in a combined amount greater than 50%.
  • An alloy composition which is especially adapted for hard facing, said composition consisting of about 35% cobalt, about 3.5% boron, about 36.5% nickel, about 5% silicon, and about 20% iron.

Description

United States Patent 2,757,084 I ALLOY COMPOSITIONS Arthur T. Cape, Los Angeles, Calif., and Charles V. Foerster, West Englewood, N. J., assignors to Coast Metals, Inc., Little Ferry, N. 1., a corporation of Delaware No Drawing. Application May 20, 1955, Serial No. 510,030
2 Claims. (Cl. 75-7-1304) This invention relates, as indicated, to alloy compositions, but has reference more particularly to compositions which are especially useful for hard facing.
Alloy compositions, in accordance with the invention, consist of the following ingredients in the proportions stated:
Range Preferred Preferred Range Alloy 2,757,084 lr atented July 31, 1956 excellent resistance to lead oxide corrosion, and have excellent oxidation resistance up to the softening point of the alloys. The alloys have relatively low melting points (1875 F.2125 E), and have excellent flow characteristics, and are therefore easily applied, flowing in a desired manner during application.
The alloys are extremely tough, and have a hardness range, in a welded section, which varies from about 450 Knoop on the low side of the above range to about 900 Knoop at the high side of the range.
The alloys may be used in the form of weld rods, powder, castings, etc., and are also suitable for brazing steels, stainless steels, high alloys, etc.
It is to be understood that the expression the remainder being substantially all iron, as used in the claims, is to be construed as including carbon in amounts not more than about 1%, but preferably under 0.1%, and any other ingredients or impurities in relatively small or trace amounts, which are found associated with the various constituents of the alloy.
Having thus described our invention, we claim:
1. Alloy compositions which are especially adapted for hard facing, said compositions consisting of cobalt in amounts of from about 30% to about boron in amounts of from about 2% to about 4%, nickel in amounts of from about 30% to about 50%, and silicon in amounts of from about 2.5% to about 5.5%, the remainder being substantially all iron, and the cobalt and iron being present in a combined amount greater than 50%.
2. An alloy composition which is especially adapted for hard facing, said composition consisting of about 35% cobalt, about 3.5% boron, about 36.5% nickel, about 5% silicon, and about 20% iron.
References Cited in the file of this patent UNITED STATES PATENTS 1,493,191 De Golyer May 6, 1924

Claims (1)

  1. 2. AN ALLOY COMPOSITION WHICH IS ESPECIALLY ADAPTED FOR HARD FACING, SAID COMPOSITION CONSISTING OF ABOUT 35% COBALT, ABOUT 3,5% BORON, ABOUT 36.5% NICKEL, ABOUT 5% SILICON, AND ABOUT 20% IRON.
US510030A 1955-05-20 1955-05-20 Alloy compositions Expired - Lifetime US2757084A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3108861A (en) * 1961-08-09 1963-10-29 Coast Metals Inc Nickel-base brazing alloys
US3275426A (en) * 1963-04-17 1966-09-27 Eaton Yale & Towne Wear resistant coating composition on a valve for internal combution engine
US3706448A (en) * 1970-03-23 1972-12-19 British Iron Steel Research Skids or beams for furnaces
US4297135A (en) * 1979-11-19 1981-10-27 Marko Materials, Inc. High strength iron, nickel and cobalt base crystalline alloys with ultrafine dispersion of borides and carbides

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1493191A (en) * 1922-11-16 1924-05-06 Golyer Anthony G De Alloy

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1493191A (en) * 1922-11-16 1924-05-06 Golyer Anthony G De Alloy

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3108861A (en) * 1961-08-09 1963-10-29 Coast Metals Inc Nickel-base brazing alloys
US3275426A (en) * 1963-04-17 1966-09-27 Eaton Yale & Towne Wear resistant coating composition on a valve for internal combution engine
US3706448A (en) * 1970-03-23 1972-12-19 British Iron Steel Research Skids or beams for furnaces
US4297135A (en) * 1979-11-19 1981-10-27 Marko Materials, Inc. High strength iron, nickel and cobalt base crystalline alloys with ultrafine dispersion of borides and carbides

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