C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
75/91
C22C 13/00 (2006.01) B23K 35/26 (2006.01) C22C 13/02 (2006.01)
Patent
CA 1308941
ABSTRACT A lead free, cadmium free tin and tin/antimony based solder alloy having a wide melting range for joining copper tubes and brass pipe and fittings. The non-toxic tin based solder composition has a range of 92.5 - 96.9% tin, 3.0 - 5.0% copper, 0.1 - 2.0% nickel and 0.0 - 0.5% silver. The non-toxic tin/antimony based solder composition has a range of 87.0 - 92.9% tin, 4.0 - 6.0% antimony, 3.0 - 5.0% copper, 0.0 - 2.0% nickel and 0.0 - 0.5% silver and is especially suited for plumbing applications having tight and loose fitting solder joints which are exposed to potable water.
571682
Ballentine Richard E.
Harris Joseph W.
J.w. Harris Company Inc.
Ridout & Maybee Llp
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