Q:

Can metals be non-magnetic?

A:

Quick Answer

Magnetism occurs when iron is present in metals, so metals can be non-magnetic when they don't contain iron. Although some metals are not magnetic, they still hold the properties of metal and are considered as such.

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Full Answer

Non-magnetic metals, or non-ferrous metals, are metals that do not have an appreciable amount of iron in their composition. These metals can be pure metals or combinations of metals, such as gold, aluminum, beryllium, led, magnesium, nickel, platinum, zinc and copper. While people usually associate metals with being magnetic, only metals with iron in their composition are classified as magnetic. Non-ferrous metals are usually more expensive than their ferrous (or iron-based) counterparts. Properties of non-ferrous metals and alloys include high conductivity, lower weight, higher strength, resistance to corrosion and resistance to rust. Even though the non-ferrous metals have no iron, they can still be found as alloys and still be non-ferrous, such as brass. In fact, the first metals used for metallurgy by ancient humans were non-ferrous as they were resistant to the effects of oxygen and can be found in rock outcroppings around the world. Depending on their use, current non-ferrous metals are cast, and then cold or hot wrought by using the rolling, forging or extrusion methods. These metals can be found in everyday applications, such as building materials, electronics, aerospace and household appliances.

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Related Questions

  • Q:

    Can you give me a list of all the magnetic metals?

    A:

    Iron, nickel, cobalt and manganese are the only four metals considered magnetic. All other metals, including gold, silver and aluminum, are typically considered non-magnetic, although there are some elements that may show a slight positive or negative attraction when placed in a magnetic field.

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  • Q:

    Is iron magnetic?

    A:

    Iron is magnetic except when heated to the Curie point. The Curie point, which is sometimes called the Curie Temperature, is the temperature at which some magnetic materials undergo a major change in their structure.

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    What is magnetic energy?

    A:

    Magnetic energy is the energy within a magnetic field. This energy results in various metals either repelling or attracting each other.

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  • Q:

    Is tin magnetic or non-magnetic?

    A:

    Tin is magnetic in the literal sense of the word. The effect is so weak that it could be considered non-magnetic for all practical purposes. It is called a paramagnetic substance scientifically, but it has such a weak effect that it can be compared to a diamagnetic element.

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