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Brass is an alloy of copper and zinc; the proportions of zinc can vary. Brass is a substitutional alloy; it is used for decoration for its bright gold-like appearance; for applications where low friction is required such as locks, gears, bearings, doorknobs, ammunition casings and valves; for plumbing and electrical applications; and extensively in musical instruments such as horns and bells for its acoustic properties.

Challenger Brass and Copper supplies and stock brass within the following characteristic: 

Alloys: 360 

Thickness range: 0.025 to 0.125 inches
Width range: 0.500 to 24.00 inches  

Copper is a chemical element with the symbol of Cu (latin: cuprum). It is a ductile metal with very high thermal and electrical conductivity. The metal and its alloys have been used for thousand years.

Challenger Brass and Copper supplies and stock copper in coil, bars, and metal sheet within the following characteristic: 

Alloys: 110 / 115 / 155 

   Thickness range: 0.025 to 0.125 inches
   Width range: 0.500 to 24.00 inches

Aluminum is a chemical element with the symbol of Al. Aluminum is remarkable for the metal's low density and for its ability to resist corrosion due to the phenomenon of passivation. Structural components made from aluminum and its alloys are vital to the aerospace industry and are important in other areas of transportation and structural materials. The most useful compounds of aluminum, at least on a weight basis, are the oxides and sulfates.

Challenger Brass and Copper supplies and stock aluminum in coil and bars within the following characteristics:

Alloys: 3003 H-14 / 6101-T61 Platted 

Stainless steel, also known as inox steel or inox from French "inoxydable"; Stainless steel does not readily corrode, rust or stain with water as ordinary steel does, but despite the name it is not fully stain-proof, most notably under low oxygen, high salinity, or poor circulation environments.

Challenger Brass and Copper supplies and stock Stainless Steel coil within the following characteristics:
Alloy: T-416