Lead Selenium Alloy Dealers in Jaipur

Alloying is technique of combining or mixing two or more metals to make an entirely new metal, for example mixing copper and tin to create bronze. The process of Alloying is entirely opposite of Refining but Technically it has some resemblance as both the process are temperature based chemical process where in one process some elements are taken out at regular intervals and in other some elements are mixed. 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. Lead is also widely used as a constituent in solders. Most common solders are the Lead-tin alloys; melting temperature can be as low as 361°F. In its unalloyed form (defined by ASTM B29 as 99.85% minimum Lead), Lead is soft and weak; it requires support for mechanical applications. This "chemical Lead" is used primarily in corrosive chemical-handling applications such as tank linings. "Hard Lead" — Lead alloyed with 1 to 13% antimony — has sufficient tensile strength, fatigue resistance, and hardness for many mechanical applications. These alloys can be cast, rolled, or extruded and are especially suited for castings requiring good detail and moderate strength. Rolled antimonial alloys are harder and stronger than the cast alloys. Battery-plate Lead contains 7 to 12% antimony. Lead-antimony alloys with antimony contents of between 1 and 12% are used widely in the chemical industry for pumps and valves on chemical plants and in radiation shielding both for lining the walls of X-ray rooms and for bricks to house radioactive sources in the nuclear industry. The addition of antimony to Lead increases lead's hardness and therefore its resistance to physical damage without greatly reducing its corrosion resistance.

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