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Lead

Chemical Symbol: Pb
Sp. Gr.: 11.3
Viscosity: Unknown, but relatively thin

Remarks: Lead melts at about 329ºC / 625ºF. It must be handled at this or somewhat higher temperatures. Molten lead is used in molding many of the end products made from lead, such as storage battery plates, bearings, pipes, etc. Remember to take into account the specific gravity of the lead when making pressure calculations.

Pump Notes: Cast iron construction is satisfactory. Pumps are usually submerged in molten lead to avoid sealing problems.