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Ferrous & Non-Ferrous Metals and their Uses

Put in the simplest terms, ferrous metals are those which contain iron, whilst non ferrous metals don’t have any iron content. There are, however, other differences between the two types of metal which have a strong bearing upon the tasks which they are usually called upon to perform.

Ferrous Metals

The following are ferrous metals and the kind of uses to which they are usually put:

  • Mild Steel – Carbon content of 0.1 to 0.3% and Iron content of 99.7 – 99.9%. Used for engineering purposes and in general, none specialised metal products.
  • Carbon steel – Carbon content of 0.6 to 1.4% and Iron content of 98.6 to 99.4 %.  Used to make cutting tools such as drill bits.
  • Cast Iron – carbon 2 – 6% and Iron at 94 to 98%. Very strong but brittle. Used to manufacture items such as engine blocks and manhole covers.
  • Wrought Iron – Composed of almost 100% iron. Used to make items such as ornamental gates and fencing. Has fallen out of use somewhat.

Non Ferrous Metals

These are the non ferrous metals and their uses:

  • Aluminium – An alloy of aluminium, copper and manganese. Very lightweight and easily worked. Used in aircraft manufacture, window frames and some kitchen ware.
  • Copper – Copper is a natural occurring substance. The fact that it conducts heat and electricity means that it is used for wiring, tubing and pipe work.
  • Brass – A combination of copper and zinc, usually in the proportions of 65% to 35% respectively. Is used for ornamental purposes and within electrical fittings.
  • Silver – Mainly a natural substance, but mixing with copper creates sterling silver. Used for decorative impact in jewellery and ornaments, and also to solder different metals together.
  • Lead – Lead is a naturally occurring substance. It is heavy and very soft and is often used in roofing, in batteries and to make pipes.

About Castle Metals

Castle Metals are a supplier of metal alloys specialising in stainless steel, certified to high standards, with a variety of cutting processes available from their facility.
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