Check the listing for details. KZ35R Tin/Silver Rosin Core Solder 1/16" 1 Ft. Condition: New. Listed at 1.75 USD. KZ35R Tin/Silver Rosin Core Solder 1/16"KZ35R Tin-Silver rosin-core solder is a convenient NSF Certified Lead-Free one-step solder that produces strong and ductile joints for all electrical/electronic Copper and Stainless Steel applications. The center of the solder contains a natural rosin flux which is released when the solder is heated, eliminating the need for additional flux. Flux residue is easily removed with rag wet with warm water or alcohol, or by flushing with warm water. The resulting joints have high tolerance to vibration and stress, with tensile strengths to 14,000 psi on Copper and 25,000 psi on Stainless Steel.NSF International certifies that this product complies with NSF/ANSI Standard 372: Drinking Water System Components – Lead Content. Product also Certified to NSF/ANSI 61, Annex G and conforms with Lead content requirements for “Lead-free” plumbing as defined by California, Vermont, Maryland, and Louisiana state laws and the U.S. Safe Drinking Water Act in effect as of January 4, 2014. Weighted average lead content < 0.25%; Solder and flux lead content < 0.20%. This alloy complies with the European RoHS and REACH directives. No lead, cadmium or mercury used in production. Applications:Copper wires to Copper, Brass, and/or Stainless Steel tabsCopper voice coil leads to tinsel leadsSensitive circuit boardsThin Copper or Stainless Steel wiresPaired with KC Flux when additional flux is needed Properties:CompositionSn (Tin):96.5%Ag (Silver):3.5% Technical DataMelting Range:Eutectic @ 430°F (221°C)Tensile Strength (Copper):14,000 psiTensile Strength (Stainless Steel):25,000 psiShear Strength:11,600 psiElongation:48%Electrical Conductivity:16.4%Sn=Tin, Ag=Silver