It was presented to Billy last week. Inside the brass on the back of the guitar is Billy’s old, worn silver dollar he used as a guitar pick for many years.

That’s how he gets some of his great harmonics when he plays.

1. 1xxx. This is the purest of aluminum alloys. They resist corrosion very effectively, and they are great conductors. You may even be able to increase its strength a little bit by hardening the strains.
2. 2xxx. This alloy is made with copper and are heat-treated, which strengthens it, and yields comparisons to low-carbon steel.
3. 3xxx. An alloy made with manganese, this alloy is approximately 20% stronger than the 1xxx alloys. Any aluminum alloys supplier will also tell you that this alloy is not as common, because manganese can only be added to aluminum in small amounts.
4. 4xxx. Combined with silicon, this alloy can have a very low melting range, as silicon can be added in significant quantities. This is why this particular alloy is used for welding wire, as well as for joining aluminum. If you add an anodic oxide finish to the metal, it becomes a charcoal color, so it is in high demand for architectural projects.
5. 5xxx. Here, magnesium is the principal alloying element. This hardens the metal. They resist corrosion very effectively, and an aluminum alloys supplier would provide this metal for marine purposes. However, it can be susceptible to cracking at low temperatures.
6. 6xxx. Magnesium and silicon are alloyed with aluminum together in this alloy, and are formable, weldable, machineable, and resist corrosion rather well.
7. 7xxx. An aluminum alloy with zinc, this alloy resists stress very effectively, so it is used in structures for airplanes, mobile equipment, and other uses where strength is a big factor.

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• Nickel plates are very common. Many items are nickel plated. Mainly used in the electronics and automotive worlds, the nickel plate can add a decorative finish to a variety of items. It is smooth and bright, and gives a mirror finish to whatever it is you are plating. It can also protect against corrosion. However, it is also used in engineering when one needs to resist wear and increase hardness. Nickel is also magnetic, which makes it a strong candidate when used in engineering.
• The nickel rod is mainly used in welding. Combined with silicon to make an alloy, the nickel rod can keep its form through very high temperatures. They can make perfect joints while welding, and can be used for arc welding as well. While other types of metal rods can be used for welding, few offer the resistance to deformation and can withstand the heat like the nickel rod.
• While a shiny nickel bar might be on the wall in your bathroom, it is unlikely that this is a pure nickel bar. In fact, it is probably a different metal with nickel plating on it. Nickel bars can be used in engineering and architectural purposes because of the chemical qualities listed in the above points.

As you can see, there are a variety of different forms that nickel can come in. Before you decide to purchase nickel for your project, make sure it is exactly the metal that you need or want. In fact, pure nickel is often not used at all, but a nickel alloy. It makes stainless steel because it fights corrosion. If you are looking for uses of just nickel, you may be looking at protective plating, which is the most common use for nickel. Other common uses for nickel include magnets and batteries, as well as more productive uses, such as being used as a catalyst for hydrogenating vegetable oils. You may even find that nickel is used commonly in ceramics as well. And of course, you can find nickel in coins, such as the American nickel.
“Properties: The melting point of nickel is 1453°C, boiling point is 2732°C, specific gravity is 8.902 (25°C), with a valence of 0, 1, 2, or 3. Nickel is a silvery white metal that takes a high polish. Nickel is hard, ductile, malleable, and somewhat ferromagnetic. It is a fair conductor of heat and electricity. Nickel is a member of the iron-cobalt group of metals (transition elements). Exposure to nickel metal and soluble compounds should not exceed 1 mg/M3 (8 hour time weighted average for a 40 hour week). Some nickel compounds (nickel carbonyl, nickel sulfide) are considered to be highly toxic or carcinogenic.

Uses: Nickel is used primarily for the alloys it forms. It is used for making stainless steel and many other corrosion resistant alloys. Copper-nickel alloy tubing is used in desalination plants. Nickel is used in coinage and for armor plating. When added to glass, nickel gives a green color. Nickel plating is applied to other metals to provide a protective coating. Finely divided nickel is used as a catalyst for hydrogenating vegetable oils. Nickel is also used in ceramics, magnets, and batteries.

Sources: Nickel is present in most meteorites. Its presence is often used to distinguish meteorites from other minerals. Iron meteorites (siderites) may contain iron alloyed with 5-20% nickel. Nickel is commercially obtained from pentlandite and pyrrhotite. Deposits of nickel ore are located in Ontario, Australian, Cuba, and Indonesia.

Element Classification: Transition Metal

Density (g/cc): 8.902

Melting Point (K): 1726

Boiling Point (K): 3005

Appearance: Hard, malleable, silvery-white metal

Atomic Radius (pm): 124

Atomic Volume (cc/mol): 6.6

Covalent Radius (pm): 115

Ionic Radius: 69 (+2e)

Specific Heat (@20°C J/g mol): 0.443

Fusion Heat (kJ/mol): 17.61

Evaporation Heat (kJ/mol): 378.6

Debye Temperature (K): 375.00

Pauling Negativity Number: 1.91

First Ionizing Energy (kJ/mol): 736.2

Oxidation States: 3, 2, 0

Lattice Structure: Face-Centered Cubic

Lattice Constant (Å): 3.520

References: Los Alamos National Laboratory (2001), Crescent Chemical Company (2001), Lange’s Handbook of Chemistry (1952), CRC Handbook of Chemistry & Physics (18th Ed.)