Crude Steel

Crude Steel  Crude steel is the term used for the first solid steel product which is produced during the solidification of liquid steel in a steel melting shop. Crude steel is part of saleable steel when it is supplied to customers for its use or for further processing. Crude steel is normally processed into finished steel either by rolling or by forging processes. World steel association also includes liquid steel which goes into production of steel castings under crude steel for statistical purpose. Various common types of crude steel products (Fig 1) include (i) ingot, (ii) slab, (iii) bloom, (iv) billet, (v) round, and (vi) dog bone section. Crude steel products are also semi-finished products since they need further processing for the production of finished steel. Fig 1 Common types of crude steel products Ingot Ingot is the product obtained by pouring liquid steel into cast iron mould of a shape appropriate for the subsequent processing generally by hot rolling or forging into semi-finished or finished products. The shape generally resembles a truncated pyramid or truncated cone. The side surfaces can be corrugated and the corners are more or less rounded. Depending on its subsequent conversion requirements, ingot can be dressed and/or hot scarfed or cropped. The usual cross section of ingot is square, rectangular, round, oval, or polygon. Ingots with square cross section are used for rolling into billets, rails and other structural sections, whereas, ingots with rectangular cross section, are generally used for rolling into flat products. These ingots usually have a width which is two times or higher than the thickness. Round ingots are used for the production of seamless pipes. Polygonal ingots are used to produce tyres, and wheels etc. Low capacity steel melting shops with induction furnaces produce very...

Financial planning and its elements...

Financial planning and its elements Financial planning is an implement which allows evaluation of the current financial situation of the organization and predicting of its future financial performance. One of the objectives of the financial planning is to determine funds requirements and capital structure in order to understand the financial soundness of the organization. In addition to it, financial planning process helps the organizational management in framing of the financial policies for the control of the cash flow as well as in ensuring that the organization is employing its financial resources in the most efficient manner. Further, the financial planning demonstrates the direction of the organizational activities and analyses how each action has its influence on the financial stability of the organization. Also, financial planning helps the organizational management to make a decision about investments since it shows different ratios (such as equity ratio, debt ratio etc.). These ratios play an important role in the decision making process. Financial plan consists of four elements. These elements are (i) profit and loss projection, (ii) projected balance sheet, (iii) projected cash flow, and (iv) break-even analysis. These four elements are shown in Fig 1. Fig 1 Four elements of financial plan Profit and loss projection Profit and loss projection presents the plan of revenues and expenses of the organization over the specific accounting period. Profit and loss projection follows the same pattern as the profit and loss statement. Nonetheless, it reflects the data about the future. The presentation of the profit and loss statement differs from organization to organization.  However, the basic structure includes the basic five measures namely (i) gross profit, (ii) operating profit or earnings before interest and tax (EBIT), (iii) operating profit or earnings before interest, tax, depreciation and amortization (EBITDA), (iv) profit...

Pristine-M process technology for drying of low rank coals Aug09

Pristine-M process technology for drying of low rank coals...

Pristine-M process technology for drying of low rank coals Pristine-M process technology for the drying of the low rank coals is being developed by Clean Coal Technologies, Inc. (CCTI). It is a patented technology for converting raw low rank coal into a cleaner burning more efficient fuel. It addresses the need for a low moisture coal which is economical to transport, stable in transportation and does not reabsorb moisture. Pristine-M is a low-cost coal de-watering technology which has succeeded in drying coal and stabilizing it cheaply using volatile matter (VM) released by the feed raw coal. Pristine-M process reduces the moisture content of low-rank coals, while also stabilizing and sealing the treated coals to prevent moisture re-absorptions and spontaneous combustion. The process also increases the calorific value (CV) of the low-rank coals to values which are comparable with the bituminous coals. Pristine-M is the third stage of the development of the process. The other two stages are ‘Pristine-SA’ and ‘Pristine’. Pristine-SA is a development stage technology designed to eliminate 100 % of the VM in the feed raw coal. For achieving stable combustion, Pristine-SA treated coal is to be co-fired with treated biomass or natural gas. The process results into a clean fuel, eliminating the need for emissions scrubbers and the corollary production of toxic flue gas desulphurization (FGD) sludge. Pristine-SA gives a versatile coal product which can be used to produce numerous non-fuel products. CCTI’s legacy technology, ‘Pristine’, is designed to remove moisture and VM, as per the requirements. The factor determining VM reduction is boiler design and the need for a certain amount of VM to remain in the coal to ensure proper burn. The end product is a cleaner burning, dry coal. CCTI’s Pristine-M technology is a patented, low-cost coal dehydration...

Macro-Segregation in Steel Ingots...

Macro-Segregation in Steel Ingots With the large scale reduction of the crude steel production through the ingot casting route, there is now-a-days a tendency of producing extremely heavy weight steel ingots weighing over 600 t and continuous cast strands with thickness over 450 mm and rounds with diameter over 800 mm. These large size crude steel products are mainly applied for retaining components like reaction vessels for nuclear power plant and rotating components such as drive shafts of gas turbines and generator rotors. These high value products require high quality of the as-cast crude steel products, and hence, the production of the heavy crude steel products with adequate control of the quality is a big concern for steelmakers worldwide. The macro-scale segregation of alloying elements during the casting of steel ingots continues to afflict the manufacturers of steel ingots, despite many decades of research into its prediction and elimination. Defects such as A-segregates are still common, and components are regularly scrapped due to their presence, leading to increased economic and environmental costs. With the growth of the nuclear power industry, and the increased demands placed on new pressure vessels, it is now more important than ever that today’s steel ingots are as chemically homogeneous as feasible. During the solidification of alloys (liquid steel), solute is partitioned between the solid and liquid to either enrich or deplete the inter-dendritic regions. This obviously leads to variations in the composition on the scale of micro-metres (micro-segregation). Macro-segregation is a composition inhomogeneity in the scale from several millimeters to centimeters or even meters. The effects of macro-segregation are critically important in the present day applications of steel ingots and hence the ability to predict segregation severity and location is very important and highly sought after these days. Almost...

Marketing, Marketing Plan and its Elements...

Marketing, Marketing Plan and its Elements Marketing refers to the activities of the organization associated with promoting and selling of its products and services. It includes advertising, selling, delivering products to the customers, and market research. In fact, it is everything which the organization does to acquire customers and maintain a relationship with them. An efficient marketing cultivates sound business strategies, allows for successful innovation, increases the effectiveness of promotional strategies, and strengthens the brand image. The main purpose of the marketing is not only to maintain the relationship with existing ones but also to attract new customers. The process of interaction between the marketing men and the customers presents the dialogue between them and assumes the exchange of values. Marketing plan is one of the major and extremely significant of the organizational business planning process since it is the marketing which brings success in the long term, particularly, continuous growth in the earnings of the organization. Marketing plan has an input in defining efficiency in customer satisfaction terms.  It also helps to identify core products/services which meet the needs of the target segments of the organization. For understanding the theory related to the marketing and the marketing plan it is first necessary to understand its elements. These elements are (i) marketing mix, (ii) branding strategy, (iii) competitor and market analysis, (iv) customer decision making process, and (v) sales plan. Marketing mix Marketing mix is a theoretical framework which defines four indicators in arranging the offerings to meet the needs of the customers. These indicators are (i) product, (ii) place, (iii) price, and (iv) promotion. These indicators are also known as 4 Ps. The concept of 4 Ps is considered to be powerful due to the reason that it makes marketing process simpler and allows having...