US3012881A - Iron-base alloys - Google Patents

Iron-base alloys Download PDF

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Publication number
US3012881A
US3012881A US62878A US6287860A US3012881A US 3012881 A US3012881 A US 3012881A US 62878 A US62878 A US 62878A US 6287860 A US6287860 A US 6287860A US 3012881 A US3012881 A US 3012881A
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United States
Prior art keywords
iron
alloy
base alloys
cobalt
base
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Expired - Lifetime
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US62878A
Inventor
Arthur T Cape
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Coast Metals Inc
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Coast Metals Inc
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Publication date
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Priority to US62878A priority Critical patent/US3012881A/en
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/36—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.7% by weight of carbon

Definitions

  • a primary object of the invention is to provide an alloy of this character which can be sprayed or applied to a metal base by means of a torch, such as that described in my copending application, Serial No. 47,053, and which, after being sprayed, can be melted at a relatively low temperature, so as to form a hard, wear resisting part or surface on the metal base.
  • Another object of the invention is to provide an alloy of this character, which can be formed into a ring, such as a sealing ring, by spraying the alloy onto a part to which the alloy will not adhere or stick, and then melting the sprayed alloy while on said part, and thereafter removing the ring which is formed.
  • a further object of the invention is to provide an alloy of this character which can also be cast in the form of a ring or the like.
  • the alloy contains the following constituents:
  • the alloy melts at a temperature of about 2050 F., and has great hardness, in the as-melted or as-welded state, the hardness being from about to about 68 Rockwell C. If the temperature of melting is properly controlled, the alloy has a Knoop hardness of the order of 1100.
  • the properties of the alloy may be improved by the incorporation in the alloy of cobalt, in the range of from about 10 to about 22% cobalt, with about 15% cobalt preferred.
  • the cobalt when used, will replace part of the iron.
  • An iron base alloy consisting of from 1.5 to 2% carbon, 3 to 6% chromium, 1.75 to 2.25% nickel, 1.75 to 2.25 copper, 1.75 to 2.25 manganese, .75 to 2.5% silicon, 1.75 to 3% molybdenum, 3 to 3.5% boron, and the balance substantially all iron.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating By Spraying Or Casting (AREA)

Description

United States Patent Ofiice 3,012,881 Patented Dec. 12, 1961 3,012,881 IRON-BASE ALLGYS Arthur T. Cape, Monterey, Calif., assiguor to Coast Metals, Inc., Little Ferry, N.J., a corporation of Delaware N Drawing. Filed Oct. 17, 1960, Ser. No. 62,878 2 Claims. (Cl. 75-128) This invention relates generally to iron-base alloys which have exceptional hardness and Wear resistance.
A primary object of the invention is to provide an alloy of this character which can be sprayed or applied to a metal base by means of a torch, such as that described in my copending application, Serial No. 47,053, and which, after being sprayed, can be melted at a relatively low temperature, so as to form a hard, wear resisting part or surface on the metal base.
Another object of the invention is to provide an alloy of this character, which can be formed into a ring, such as a sealing ring, by spraying the alloy onto a part to which the alloy will not adhere or stick, and then melting the sprayed alloy while on said part, and thereafter removing the ring which is formed.
A further object of the invention is to provide an alloy of this character which can also be cast in the form of a ring or the like.
In accordance with the invention, the alloy contains the following constituents:
The alloy melts at a temperature of about 2050 F., and has great hardness, in the as-melted or as-welded state, the hardness being from about to about 68 Rockwell C. If the temperature of melting is properly controlled, the alloy has a Knoop hardness of the order of 1100.
The properties of the alloy, particularly the sprayability and remelting characteristics thereof, may be improved by the incorporation in the alloy of cobalt, in the range of from about 10 to about 22% cobalt, with about 15% cobalt preferred. The cobalt, when used, will replace part of the iron.
It will be understood that slight changes may be made in the alloy, without departing from the spirit of the invention, or the scope of the appended claims.
Having thus described my invention, I claim:
1. An iron base alloy consisting of from 1.5 to 2% carbon, 3 to 6% chromium, 1.75 to 2.25% nickel, 1.75 to 2.25 copper, 1.75 to 2.25 manganese, .75 to 2.5% silicon, 1.75 to 3% molybdenum, 3 to 3.5% boron, and the balance substantially all iron.
2. An alloy, as defined in claim 1, in which the iron is replaced in part by cobalt, in an amount of from about 10% to about 22% cobalt.
References Cited in the file of this patent UNITED STATES PATENTS 1,988,910 Merica et a1 Jan. 22, 1935 2,053,346 Merten Sept. 8, 1936 2,175,683 Charlton Oct. 10, 1939

Claims (1)

1. AN IRON BASE ALLOY CONSISTING OF FROM 1.5 TO 2% CARBON, 3 TO 6% CHROMIUM, 1.75 TO 2.25% NICKEL, 1.75 TO 2.25% COPPER, 1.75 TO 2.25% MANGANESE, .75 TO 2.5% SILICON, 1.75 TO 3% MOLYBDENUM, 3 TO 3.5% BORON, AND THE BALANCE SUBSTANTIALLY ALL IRON.
US62878A 1960-10-17 1960-10-17 Iron-base alloys Expired - Lifetime US3012881A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0223202A2 (en) * 1985-11-22 1987-05-27 The Perkin-Elmer Corporation Iron alloy containing molybdenum, copper and boron
JPS63235093A (en) * 1987-03-23 1988-09-30 イ−トン　コ−ポレ−シヨン Low porous surface welding alloy
US20060102354A1 (en) * 2004-11-12 2006-05-18 Wear Sox, L.P. Wear resistant layer for downhole well equipment
US8574667B2 (en) 2011-08-05 2013-11-05 Baker Hughes Incorporated Methods of forming coatings upon wellbore tools
US9199273B2 (en) 2009-03-04 2015-12-01 Baker Hughes Incorporated Methods of applying hardfacing
US9745803B2 (en) 2009-04-07 2017-08-29 Antelope Oil Tool & Mfg. Co. Centralizer assembly and method for attaching to a tubular
US9920412B2 (en) 2013-08-28 2018-03-20 Antelope Oil Tool & Mfg. Co. Chromium-free thermal spray composition, method, and apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1988910A (en) * 1926-10-21 1935-01-22 Int Nickel Co Chill cast iron alloy
US2053346A (en) * 1934-06-11 1936-09-08 Pittsburgh Rolls Corp Roll for fabricating hot metal
US2175683A (en) * 1939-07-15 1939-10-10 Eaton Mfg Co Ferrous alloy

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1988910A (en) * 1926-10-21 1935-01-22 Int Nickel Co Chill cast iron alloy
US2053346A (en) * 1934-06-11 1936-09-08 Pittsburgh Rolls Corp Roll for fabricating hot metal
US2175683A (en) * 1939-07-15 1939-10-10 Eaton Mfg Co Ferrous alloy

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0223202A2 (en) * 1985-11-22 1987-05-27 The Perkin-Elmer Corporation Iron alloy containing molybdenum, copper and boron
EP0223202A3 (en) * 1985-11-22 1989-07-19 The Perkin-Elmer Corporation Iron alloy containing molybdenum, copper and boron
JPS63235093A (en) * 1987-03-23 1988-09-30 イ−トン　コ−ポレ−シヨン Low porous surface welding alloy
GB2435186B (en) * 2004-11-12 2010-10-13 Wear Sox L P Wear resistant layer for downhole well equipment
WO2006055230A2 (en) * 2004-11-12 2006-05-26 Wear Sox, L.P. Wear resistant layer for downhole well equipment
WO2006055230A3 (en) * 2004-11-12 2007-02-01 Wear Sox L P Wear resistant layer for downhole well equipment
GB2435186A (en) * 2004-11-12 2007-08-15 Wear Sox Llp Wear resistant layer for downhole well equipment
US7487840B2 (en) 2004-11-12 2009-02-10 Wear Sox, L.P. Wear resistant layer for downhole well equipment
US20060102354A1 (en) * 2004-11-12 2006-05-18 Wear Sox, L.P. Wear resistant layer for downhole well equipment
US10399119B2 (en) 2007-12-14 2019-09-03 Baker Hughes Incorporated Films, intermediate structures, and methods for forming hardfacing
US9199273B2 (en) 2009-03-04 2015-12-01 Baker Hughes Incorporated Methods of applying hardfacing
US9745803B2 (en) 2009-04-07 2017-08-29 Antelope Oil Tool & Mfg. Co. Centralizer assembly and method for attaching to a tubular
US8574667B2 (en) 2011-08-05 2013-11-05 Baker Hughes Incorporated Methods of forming coatings upon wellbore tools
US9920412B2 (en) 2013-08-28 2018-03-20 Antelope Oil Tool & Mfg. Co. Chromium-free thermal spray composition, method, and apparatus
US10577685B2 (en) 2013-08-28 2020-03-03 Innovex Downhole Solutions, Inc. Chromium-free thermal spray composition, method, and apparatus
US11608552B2 (en) 2013-08-28 2023-03-21 Innovex Downhole Solutions, Inc. Chromium-free thermal spray composition, method, and apparatus

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