What Are The characteristics of non-ferrous metals
Non-ferrous metals
include aluminium, brass, copper, nickel, tin, lead, and zinc, as well as
precious metals like gold and silver. It does not contain iron. While non-ferrous metals can provide
strength, they are primarily used where their differences from ferrous metals
can provide an advantage.
For instance,
non-ferrous metals are much more malleable than ferrous metals. Non-ferrous
are also much lighter, making them more suitable for use where strength
is needed, but weight is a factor, such as in the aircraft or canning
industries. Because they contain no iron, non-ferrous metals have a higher
resistance to rust and corrosion, which is why you’ll find these materials in
use for gutters, water pipes, roofing, and road signs. Lastly, they are also
non-magnetic, which makes them perfect for use in small electronics and as
electrical wiring.
As regards recycling,
aluminium is the third most recycled material in the world. However, many other
non-ferrous materials like copper, brass and lead are relatively scarce, and
metallurgists rely heavily on scrap material recycling to make new products.
This brings us to the
price difference between ferrous and non-ferrous metals.
The pricing difference
Ferrous scrap metals
tend to be in good supply, so the prices tend to be lower than most non-ferrous
metals. Because steel and iron alloys are constantly being recycled in high
volume all over the world, the prices for these materials stay fairly constant
on a month-to-month basis, dropping or raising only slightly.
For non-ferrous scrap,
they are relatively harder to come by and more difficult to create. This makes
the demand higher, which drives up the price per pound higher than ferrous
metals. While aluminium prices don’t fluctuate often due to recycling efforts,
others like copper and brass can change drastically in just a month’s time
depending on the needs of the market.
Non Ferrous Metals and Their uses:
1 Aluminium – An alloy of aluminium, copper and
manganese. It is very lightweight and easily worked. Used in aircraft manufacture,
window frames and some kitchen ware.
2 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.
3 Brass
– A combination of copper and zinc, usually in the proportions of 65% to 35%
respectively. It is used for ornamental purposes and within electrical fittings.
4 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.
5 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.
Enough about differences
In the end, the
greatest similarity ferrous and non-ferrous metal have is their importance to
the metal recycling industry.
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