Iron‚ Steel and Aluminium Main sources of iron: * second most abundant metal (5% by mass) in Earth’s crust (fourth most abundant element) * found in rock (a mixture of minerals) as one or more minerals (usually a compound) * if a mineral is of economic importance‚ it is referred to as an ore * iron containing minerals include hematite (Fe2O3)‚ magnetite (FeO·Fe2O3 or Fe3O4)‚ limonite (FeO(OH)·nH2O) and siderite (FeCO3) Alloys: * homogeneous mixtures of metals or metals and
Premium Steel Metal Iron
EFFECT OF TEMPERATURE ON CORROSION OF CERMETS ALLOY ABSTRACT Tungsten carbides (WC) are widely used as wear resistant components such as seal‚ valves‚ rings‚ nozzle and bearings. But in some processing operations‚ the environment necessarily includes severe corrosion or extremes of temperatures. In this research‚ commercially cobalt tungsten carbide (WC-6%Co) and nickel tungsten carbide (WC-9%Ni) was examined in seawater (3.5% salinity) to know the effect of temperature on corrosion for both
Premium Corrosion
INTRODUCTION Tata Steel‚ formerly known as TISCO and Tata Iron and Steel Company Limited‚ is the world ’s sixth largest steel company‚ with an annual crude steel capacity of 31 million tonnes. It is the largest private sector steel company in India in terms of domestic production. Ranked 258th on Fortune Global 500‚ it is based in Jamshedpur‚ Jharkhand‚ India. It is part of Tata Group of companies. Tata Steel is also India ’s second-largest and second-most profitable company in private sector
Premium Tata Group Steel Jamshedpur
Tiara D‚ Tucker HIST 1301.060 Dr. Mickie Mwanzia Koster William Penn and the Quaker Legacy Book Analysis John A. Moretta is currently a history professor at the University of Houston. Moretta wrote a biography that told the tale of William Penn that reminded readers that Penn was a legend and hero in the book William Penn and the Quaker Legacy. John A. Moretta wrote the book because he wanted to remind people that William Penn Junior is a legend in history and his actions still has an impact on Americans
Premium Pennsylvania Thirteen Colonies
Profile of Steel Industry in India (Managerial Economics) CONTENTS Introduction Market Size Investments Government Initiatives Steel Prices Supply and Demand Analysis Cost of production Production Functions and Input: Fixed & Variable Inputs: Total & Average cost: Calculating Average
Premium Management Marketing Inventory
Maureen Dowd is a well renowned political columnist for The New York Times who generally focuses on President Donald Trump. She describes herself as a progressive liberal who tends to align with a more socialistic view of the world. With the unexpected election of Donald Trump last November‚ Dowd now finds herself having a difficult time transitioning to an administration she is opposed to. Throughout Dowd’s articles‚ the main purpose is to convince the public that President Trump should only be
Premium United States President of the United States Donald Trump
Executive Summary Lehigh Steel is a manufacturer of speciality steels for high strength‚ high use applications. Its financial performance has generally trended wit but outperformed the industry as a whole. Following the general recessionary trend of the market‚ Lehigh Steel reported record losses in 1991 after posting record profits in 1988. This had led to an increasing need to rationalizing Lehigh Steel’s product mix. Traditionally‚ Lehigh Steel has followed Standard Cost Method for cost accounting
Premium Cost accounting Cost Costs
High Speed Steel * High Speed Steel (HSS) refers to any of a variety of steel alloys that engineers primarily use to construct machine tool bits and blades and drill bits for industrial power tools. Materials scientists can infuse this steel with differing percentages of elements to form a variety of HSS manufacturing alloy types. While all of these different types exhibit HSS’s characteristic resistance to high-temperature‚ the properties of each alloy will vary depending on the percentage of
Premium Machining
Stainless Steel Comparison 302 AISI 302 is the most basic type of steel in the chromium-nickel group. It is an austenitic steel‚ which is used for chemical resistance and hardenable by cold work. It contains 18% chromium and 8% nickel. It has corrosion resistance to mild-atmospheric and fresh water‚ industrial atmospheric‚ marine atmospheric‚ mild chemical and oxidizing chemical environments. Type 302 is also highly resistant to gasoline. 303 AISI 303 is an austenitic steel in the chromium-nickel
Premium Stainless steel Steel Austenite
According to dictionary.com‚ a steel pan is a percussion instrument originating in Trinidad‚ made out of an oil drum with one end beaten down and divided by grooves into sections to give different notes. Though steel pans (steel drums) were created on the Caribbean island of Trinidad in the 1930s‚ the steel pan history can be traced back to the enslaved Africans who were brought to the island during the 1700s. They carried with them elements of their African culture including the playing of hand
Premium Musical instrument Drum