US2015499A - Gold alloy - Google Patents

Gold alloy Download PDF

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Publication number
US2015499A
US2015499A US582654A US58265431A US2015499A US 2015499 A US2015499 A US 2015499A US 582654 A US582654 A US 582654A US 58265431 A US58265431 A US 58265431A US 2015499 A US2015499 A US 2015499A
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US
United States
Prior art keywords
gold
gold alloy
beryllium
alloys
hardness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US582654A
Inventor
Smith Joseph Kent
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beryllium Corp
Original Assignee
Beryllium Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to US582654A priority Critical patent/US2015499A/en
Application granted granted Critical
Publication of US2015499A publication Critical patent/US2015499A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals
    • C22C5/02—Alloys based on gold

Definitions

  • This invention relates to gold alloys of high gold content characterized by great hardness.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Adornments (AREA)
  • Laminated Bodies (AREA)

Description

Patented Sept. 24, 1935 The Beryllium Corporation, New York, N. Y. a corporation of Delaware No Drawing Application December 22, 1931, Serial N0. 582,654
2 Claims.
This invention relates to gold alloys of high gold content characterized by great hardness.
Known alloys of high gold content are, almost uniformly, extremely soft and, therefore, nonresistant to wear. Yet some commercial necessities of maintaining a high gold proportion has made it difiicult to increase the hardness of the precious metal.
I have found that beryllium, added in relatively small quantities, not over 5% in total, conIers upon gold and alloys predominant in gold 'the hardness desired. As little as 0.2% is definitely effective, and the optimum ratio, for most work,
is between 0.5% and 1.0%.
Of course, the usual gold alloying elements,
such as copper, silver, nickel and aluminum, may
also be added, in order to reduce the carat value of the gold article or to impart special mechanical characteristics to it, but the hardening eflect resulting from the use of beryllium remains unchanged as long as the alloy predominates in gold.
1. An alloy composed of gold and beryllium, the latter being present in amounts from .2% to 5%.
2. An alloy composed of gold and beryllium, the latter being present in amounts from 5% to 1%.
JOSEPH KENT SMITH.
US582654A 1931-12-22 1931-12-22 Gold alloy Expired - Lifetime US2015499A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US582654A US2015499A (en) 1931-12-22 1931-12-22 Gold alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US582654A US2015499A (en) 1931-12-22 1931-12-22 Gold alloy

Publications (1)

Publication Number Publication Date
US2015499A true US2015499A (en) 1935-09-24

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US582654A Expired - Lifetime US2015499A (en) 1931-12-22 1931-12-22 Gold alloy

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556921A (en) * 1947-08-28 1951-06-12 Hirsch Harold Gold beryllium alloy and method of making same
US4466940A (en) * 1981-10-27 1984-08-21 Demetron Gesellschaftfur Electronik-Werstoffe mbh Multicomponent alloy for sputtering targets
US4993622A (en) * 1987-04-28 1991-02-19 Texas Instruments Incorporated Semiconductor integrated circuit chip interconnections and methods

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556921A (en) * 1947-08-28 1951-06-12 Hirsch Harold Gold beryllium alloy and method of making same
US4466940A (en) * 1981-10-27 1984-08-21 Demetron Gesellschaftfur Electronik-Werstoffe mbh Multicomponent alloy for sputtering targets
US4993622A (en) * 1987-04-28 1991-02-19 Texas Instruments Incorporated Semiconductor integrated circuit chip interconnections and methods

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