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Mild steel and low carbon steel

Mild steel and low carbon steel

mild-steel-carbon-steel

Mild steel is the least expensive of all steel and the most common steel
used. Used in nearly every type of product created from steel, mild steel is
weldable, very hard and, although it easily rusts, very durable. Containing less
than 2 percent carbon, mild steel is able to be magnetized and used in most any
project that requires a vast amount of metal. The structural strength of mild
steel prevents it from being used to create load-bearing girders and structural
beams.

Mild and low carbon
steel

Mild steel, also called plain-carbon steel, is the most common form of steel
because its price is relatively low while it provides material properties that
are acceptable for many applications. Low carbon steel contains approximately
0.05–0.15% carbon and mild steel contains 0.16–0.29% carbon; making it malleable
and ductile, but it cannot be hardened by heat treatment. Mild steel has a
relatively low tensile strength, but it is cheap and malleable; surface hardness
can be increased through carburizing.
It is often used when large quantities
of steel are needed, for example as structural steel. The density of mild steel
is approximately 7.85 g/cm3 (7850 kg/m3 or 0.284 lb/in3) and the Young’s modulus
is 210 GPa (30,000,000 psi).

Low carbon steels suffer from yield-point runout where the material has two
yield points. The first yield point (or upper yield point) is higher than the
second and the yield drops dramatically after the upper yield point. If a low
carbon steel is only stressed to some point between the upper and lower yield
point then the surface may develop Lüder bands. Low carbon steels contain less
carbon than other steels and are easier to cold-form, making them easier to
handle.

Chemical composition of Mild steel

Mild steel is a carbon steel typically with a maximum of 0.25% Carbon and
0.4%-0.7% manganese, 0.1%-0.5% Silicon and some + traces of other elements such
as phosphorous,it may also contain lead (free cutting mild steel) or sulphur
(again free cutting steel called re-sulphurised mild steel) The stuff is used
everywhere, looking out of my office window I can see diesel pump injector
parts, loudspeaker pole pieces, Automated packing machinery parts and I haven’t
even got my glasses on. How its made and more info, depending upon the age of
your son it’s probably an idea he spends a Saturday morning at the local library
researching his homework.

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