Phosphorous copper based alloy with tin and antimony

• US 5,066,456 A
• Filed: 08/10/1990
• Issued: 11/19/1991
• Est. Priority Date: 08/10/1990
• Status: Expired due to Fees

• Current Assignee: J.W. Harris Co., Inc (Lincoln Electric Holdings Incorporated)
• Original Assignee: J.W. Harris Co., Inc (Lincoln Electric Holdings Incorporated)
• Inventors: Ballentine, Richard E., Harris, Joseph W.
• Primary Examiner(s): Willis, Prince E.
• Assistant Examiner(s): Flatter, R. D.
• Application Number:
  US07/566,604
• Time in Patent Office: 466 Days
• Field of Search: 420/472, 420/499, 420/470, 420/497
• US Class Current: 420/472
• CPC Class Codes: B23K 35/302 Cu as the principal constituent
• CPC Class Codes: C22C 9/00 Alloys based on copper

Abstract

A phosphorous copper based alloy having combined tin and antimony contents up to approximately six percent each for brazing filler metal joining copper and copper alloys producing strong clean joints at lower brazing temperatures. Silver added in amounts of 1-18% offers the ability to lower brazing temperatures further.

Claims

1. A phosphorous-copper based alloy comprising by weight:

1.0-6% tin

1.0-6% antimony

7% phosphorous

and the balance copper.

2. A phosphorous-copper based alloy comprising by weight:

2% tin

2-4 % antimony

1-18% silver

6-7% phosphorous

and the balance copper.

3. A phosphorous-copper based alloy comprising by weight:

1.0-6% tin

1.0-6% antimony

0-18% silver

5.0-8.3% phosphorous

and the balance copper.