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Engineering Materials - Nonferrous Metals - Lead


Materials: Non-Ferrous Metals


 
Non - Ferrous Metals

 

Lead

Lead is the most impervious of all common metals to X-rays and gamma radiation and it resists attack by many corrosive chemicals, most types of soil, and marine and industrial environments. Main reasons for using lead often include low melting temperature, ease of casting and forming, high density, good sound and vibration absorption, and ease of salvaging from scrap. Sheet lead, lead-loaded vinyls, lead composites, and lead-containing laminates are used to reduce machinery noise. The natural lubricity and wear resistance of lead make the metal suitable, in alloys, for heavy-duty bearing applications such as railroad-car journal bearings and piston-engine crank bearings.




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