Copper

Copper is a chemical element with symbol Cu (Latin Cuprum) and atomic number 29 (29 protons and 29 electrons) and atomic mass of 63.6 u. At room temperature, the copper is solid. Classified as a transition metal, is one of the most important industrial metals, reddish, ductile, malleable, good conductor of electricity. Copper is currently used for the production of electrically conducting materials (wires and cables) and alloys such as brass and bronze.

Bronze

Bronze (from the Persian biring, which means copper) is the name which is called a series of alloys which are based on copper, tin and major alloy varying proportions of other elements such as zinc, aluminum, antimony, nickel, phosphorus, lead, among others, in order to obtain superior characteristics to those of copper.

Tin has the characteristic of increasing the mechanical strength and hardness of copper without changing its ductility.

The manufacturing process involves mixing a mineral of copper (chalcopyrite, malachite or other) with tin (cassiterite) in a furnace fed with carbon (charcoal or coke). The carbon dioxide reduces the minerals to metals, copper and tin fuse and bind the percentage of tin from 2 to 11%.

Brass

Brass is a hard material and soft at the same time, it has a very wide scope. Coil, plate, flat bar, angles, tubes, wires, bars: round, square and hexagonal.
There are several types of brass:
Common Brass – 65/35

Free cutting American brass

Free Cutting European Brass

Deep stamping brass – 70/30

Naval brass

Admiralty Brass

Brass forge

Typical applications for the brass are:
Decorative and Architectural;

For Industry of Ammunition and Coinage;

For Chemical and Naval Engineering;

For general hardware, rivets, screws, etc;

For Mechanical Parts – needing a good machinability.

Nylon

The best known representative of a class of materials called polyamides that show great resistance to wear and traction – which is easily perceived when we tried to smash with hands a fishing line made ​​of nylon.

Nylon and other polyamides can also be shaped in other forms as well as wire, enabling the manufacture of objects such as screws, gears and bracelets for watches.

Nylon is also used to perform sutures wounds, since it is an inert material to the body and has no inflammatory reaction as other suture materials (e.g., vicryl, cat-gut, silk, cotton).

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