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Soldering copper pipes using a propane torch and a lead-free solder. Solder is a metallic material that is used to connect metal workpieces. The choice of specific solder alloys depends on their melting point, chemical reactivity, mechanical properties, toxicity, and other properties.
0.2: Ag 40 Cu 30 Zn 28 Ni 2: Ag–Cu–Zn 660/780 [37] ... Absence of lead and cadmium allows use of long heating cycles. Can be used for controlled atmosphere ...
Many gas welding processes, such as lead burning, are typically autogenous and a separate wire filler rod of the same metal is only added if there is a gap to fill. Some metals, such as lead or Birmabright aluminium alloy, use offcut strips of the same metal as filler. Steels are usually welded with a filler alloy made specially for the purpose.
This is a list of welding processes, ... ISBN 0-13-113029-3. Lincoln Electric (1994). The Procedure Handbook of Arc Welding. Cleveland: Lincoln Electric.
Even where lead piping, or lead-sheathed cable, still needs to be jointed, this is carried out with a wiped joint, rather than a burned joint. Wiping a lead joint is a soldering process, using plumber's solder (80% lead / 20% tin) and is carried out at low temperature, with a natural-draught propane blowtorch.
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