A silvery-white metal that ignites easily in air and burns with a bright light. It improves the mechanical, fabrication and welding characteristics of aluminium when used as an alloying agent. These alloys are useful in aeroplane and car construction.Magnesium is known for a long time as the lighter structural metal in the industry, due to it’s low weight and to it’s capability of forming mechanically resistant alloys.he presence of iron, nickel, copper, and cobalt strongly activates corrosion Magnesium is the third-most-commonly-used structural metal, following iron and aluminium.[42] The main applications of magnesium are, in order: aluminium alloys, die-casting (alloyed with zinc),removing sulfur in the production of iron and steel, Magnesium is used in lightweight materials and alloys.

Tin is a soft, malleable, ductile and highly crystalline silvery-white metal. Tin in combination with other elements forms a wide variety of useful alloys. Tin is most commonly alloyed with coppeR
Tin has many uses. It takes a high polish and is used to coat other metals to prevent corrosion, such as in tin cans, which are made of tin-coated steel. Alloys of tin are important, such as soft solder, pewter, bronze and phosphor bronze. A niobium-tin alloy is used for superconducting magnets.

• It is used in tin plating, coating and polishing as it has a high resistance to corrosion
• It is used in the soldering of steel as it possesses high magnetic strengths and lower melting points
• It is also used in the manufacture of other alloys such as bronze and copper

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t is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point

• or soldering parts of electrical equipment.
• As electrodes in electrolysis processes.

The metal is highly corrosion-resistant, in addition to not being a poor conductor of electricity.