Steel

ranks at the company until becoming the secretary for the superintendent. His many trips to England brought his eye to steel which would later become an essential product for cities to grow. He created his own steel company in 1872 in the U.S. which made steel using the Bessemer steelmaking process from England which made steel efficiently allowing his company to expand. Carnegie’s steel company…

as compared to garages, you can get good amount of ventilation from your vehicles with them. An ‘enclosed’ or a ‘Mobil’ carport is similar to a standard carport but can be relocated with ease. Affordable colorbond carports are made of metal mostly steel and aluminum. Compared to building a garage, building colorbond carports is not expensive and very affordable. Before thinking of opting for a specific color bond carport, let us look at some factors which are to be considered. 1.…

HARDNESS Hardness of a material is most commonly defined as the measure of its resistance to penentration by an indenter.Hardness is also measure of strength and often has the units of stress .The indenter is often fabricated from a hard material such as diamond or hardened steel.The tips of the indenters may be conical,pyramidal,or spherical in shape.The indenter tips may also be relatively small(nano-or micro-indenters) or very large(macroindenters).Since indentation tests are relatively easy…

Carbon fibre reinforced plastics (CFRP) are very strong. It is the plastic in the CFRP that gives it its tensile strength and the carbon fibre that gives it its toughness. When compared to steel they are up to ten times as strong. CFRP has a tensile strength of around 7500MPa whereas a high carbon steel has a tensile strength of 650MPa (P.Groover 2011: 270). Tensile strength is how resistant a material is to breaking down under tension, this is important in a vehicle body as the body will always…

In architecture and civil engineering, sustainability plays a main role. All buildings and any construction could be potentially dangerous if they were built or designed in an inappropriate way. All structures and designs have to be safe and stable to prevent the fatal catastrophe of failing construction. The construction of any large objects, such as shopping centers, cathedrals, bridges, and other usually takes a lot of time. There are many forces that affect the designed construction and…

TIG can be used to weld most steels including stainless steel, nickel alloys such as Monel and Inconel, titanium, aluminum, magnesium, copper, brass, bronze, and even gold. GTAW can also weld dissimilar metals to one another such as copper to brass and stainless to mild steel. 1.3.1.2 Concentrated Arc The concentrated nature of the GTAW arc permits pin point control of heat input to the work-piece resulting…

and Safety 18. References Low Carbon Steel Low carbon steel is the most common form of steel with a low cost price while it provides material properties that are required for many applications. Low carbon steel contains a low carbon content and is therefore it is neither extremely brittle nor ductile. When heated, it becomes malleable and so can be forged. Low carbon steel is a very dense metal and has tensile strength has a max of 500 MPa. Low carbon steel has 0.3% carbon which makes it one…

Copper is a nonrenewable material. It comes from a mineral deposit that the time it takes to produce copper is too long to be concidered renewable. According to the Copper Alliance, copper is 100% recyclable. In fact, 9 million tones of copper is recycled each year. The recyclable process of copper uses 85% less energy than its original production. When a person is exposed to uncoated copper such as in coocking pans or drinking utenciles, copper can be toxic. Copper is a durable, tough…

came the use of obsidian, the sharpest material on the planet, it micro bevel width was as small as 2 nanometers, that’s small enough to sever molecules themselves in the skin. And in some countries it is still used as scalpels in hospitals. Later Steel became the main use for spear heads, forging a spear head although was not easy. It would start with some high carbon, low carbon, and pure iron into a crucible, that was capped off with a clay cap, completely sealed from oxygen. Then is put on…

observe the stress concentration factor/feature for a set of mild steel specimens with various irregularities in each sample. These irregularities or “stress-raisers” include any notches and holes which vary in size (radius) and placement on the specimen (edge notches or holes) that may have an effect on the flow of stress. With the use of a Hounsfield 50 kN electrically operated tensile testing machine and 12 1-mm thick mild steel test samples the experiment shows how any stress-raiser within…