properties of steel pdf

1.1. The term ductility means steel can easily be moulded to form any desired shape. The percentage of chromium can go up to 26% in some grades. Carbon Content and Mechanical Properties of Medium Carbon Steels 469 (a) (b) Fig. Malleability. Withtheincreasein carboncontent,themicrostructure is changed into the martensite and the retained austen-ite, as well as the solid solution strengthening of the carbon element [15]. In this article the significance of these different properties will be covered with a view to enabling a fuller and better appreciation of the vast amount of pub-lished data which is available. They usually have a crystalline structure and are good thermal and electrical conductors. The physical properties of steel include: high strength, low weight, durability, ductility and corrosive resistance. In fact, the ratio of strength to weight for steel is lower than any other building material. ; Aluminium, copper, tin, lead etc are examples of malleable metals. The ductility is a property of a material which enables it to be drawn out into a thin wire. Steel offers great strength, even though it is light in weight. 1. High oxidation resistance is a result of chromium in stainless steel. Metals and Alloys: Inorganic materials composed of one or more metallic elements. Chemical properties are what make this material special and give it its uniqueness. Stainless Steel Chemical Properties. Before presenting the mechanical properties of carbon steel at elevated temperature, the properties at room temperature will be given. Many metals have high strength and high elastic module. Applications for alloys steel include pipelines, auto parts, transformers, power generators and electric motors. are especially those properties, which are important in manufacturing processes. Classification of Engineering Materials A. 9. The malleability is a property of a material which permits it to be hammered or rolled into sheets of other sizes and shapes. ; Mild steel, copper, aluminium are the good examples of a ductile material. mechanical properties offered by the various classifications and grades within the FAMILY of STAINLESS STEEL render them extremely versatile mate-rials. Alloy steels contain alloying elements (e.g. High oxidation resistance. (a) SEM and (b) optical micro-graphs of medium-carbon steels. manganese, silicon, nickel, titanium, copper, chromium, and aluminum) in varying proportions in order to manipulate the steel's properties, such as its hardenability, corrosion resistance, strength, formability, weldability or ductility. This distinguishing property of stainless steel is responsible for its many unique applications in the industry.

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