Why is steel used as a material of a bicycle?
It's strong enough, light enough, and relatively easy to join together.
Pictures of the first bicycle show a wood plank body, with iron wagon type wheels , no tires to speak of, and iron steering. these were push and coast bikes with no other drive system. Depends a bit on what you define as the first bicycle. If you think about the first "bone-shaker" that was powered by the rider kicking himself along, then the answer is mainly wood and some iron fittings. But once pedals…
Steel could be a man-made material, a natural material is one which nothing has been added to it to make it react/ behave differently. steel could be natural if its just steel that has had the carbon in it reduced to make it purer. but most often steel has had various other metals added like chromium. (stainless steel)
An example of a raw material is cotton, which can be processed into thread, which can then be woven into cloth, a semi-finished material. Cutting and sewing the fabric turns it into a garment, which is a finished material. Steelmaking is another example-raw materials are mined, refined and processed into steel, a semi-finished material. Steel is then used as an input in many other industries to make finished products.
steel as a construction material is one of the very important materials used in the industry. it is all because its characteristics and its properties that steel has. it is a very strong, hard, tough, ductile, fire resistant and has also got a very high melting point. there are defects about this material but, also many ways of over coming them too.
Typically kevlar is spun into ropes or fabric sheets that can be used as such or as an ingredient in composite material components. Currently, Kevlar has many applications, ranging from bicycle tires and racing sails to body armor because of its high tensile strength-to-weight ratio; by this measure it is 5 times stronger than steel on an equal weight basis. It is also used to make modern drumheads that hold up withstanding high impact. When…