Headline News >>
- - - - - Shri Jitin Prasada Assumes Charge as Minister Of State For Steel - - - - - Southern Steel Berhad to upgrade DC electric arc furnace and continuous caster - - - - - Siemens VAI Strengthens Its Portfolio of Products and Services: Acquisition of rolling Mill Specialist Morgan Construction completed - - - - - Disability Rehabilitation at VSP - - - - - TATA Power achieves financial closure of Mundra UMPP - - - - - ArcelorMittal appoints 3 member CR team for India - - - - - Andritz to acquire assets of General Electric’s Hydro business - - - - - Tata Steel’s Dr. T Mukherjee awarded the IOM3 Bessemer Gold Medal - - - - - Siemens to Supply Turnkey Process Technology for New Cold Rolling Mill in Bokaro Steel Plant of SAIL - - - - - The Prime Minister visited Jamshedpur on Tata Steel’s Centenary - - - - - Siemens Extends Automation of Plate Mill at Jigang - - - - - Electric steel plant X-Melt and continuous slab caster X-Cast for Maghreb Steel - - - - - MBC PLANT WORKS OMMENCED AT VSP - - - - - Sinter Plant Mis Software System Inaugurated - - - - - ThyssenKrupp AST orders new 20-roll cold rolling mill X-Roll - - - - - Mr. Pranab Mukherjee inaugurates SAIL CSR projects in Murshidabad - - - - - Steel Minister lays foundation stone of new road bridge over Damodar - - - - - SAIL sets new performance landmarks in FY ’08 - - - - - Innovative Approach By VSP Towards HIV-Aids Awareness - - - - - Tenova Pyromet successfully commissioned n. 1 ferrochrome furnace for Tata Steel in South Africa - - - - - Tenova Pyromet to build n. 2 Ferrochrome furnaces for ASA Metals, South Africa - - - - - ArcelorMittal moves towards a more global IT supply model - - - - - Andritz to supply biomass boilers for production of green electricity - - - - - Machine and plant builder SMS group achieves record business year – significant increase in order intake, sales and profit - - - - - Usha Martin receives ‘A+ (ind)’ rating by – Fitch and PR1 + Rating by CARE - - - - - Siemens VAI Strengthens Its Portfolio of Products and Services: Acquisition of Rolling Mill Specialist Morgan Construction Completed - - - - - Trinidad PM supporting Essar Steel plant - - - - - Higher Productivity with Reduced Environmental Emissions – Start-up of Modernised Finger-Shaft EAF at Stahl Gerlafingen, Switzerland - - - - - Atlas Copco Sets New Industry Standard for Energy Efficiency - - - - - POSCO plan to compensate displaced farmers driven by returns - - - - - TATA Group may set up R&D hub in UK - - - - - Follow-up Order Received from China’s Aluminum Industry: Siemens to Supply Process Control Systems for another Twelve Rolling Stands of Dingsheng Aluminium







 
View of June' 2008 Issue
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Instrumented Drop Weight Tear Test
By Nick Osborne, Technical Director, Imatek Ltd.

ABSTRACT
The drop weight tear test (DWTT) has been in use for over 40 years now, as a practical laboratory-scale way of ensuring that steel used in the manufacture of line-pipe is not subject to brittle failure when in service. It is one of a battery of tests that assess the suitability of steel for a particular application, another of which is the Charpy V-notch (CVN) test, from which the upper shelf energy (USE) has commonly been used as a measure of the ductile fracture resistance.
Since the introduction of the DWTT, materials have moved on. In particular, demands for high operating pressures of line-pipes and larger diameters have driven the development of higher strength steels. Forty years ago the work that led to the drop weight tear test was done on X52 steel (360MPa yield strength). Improvements in thermo-mechanical processing has yielded improvements of approximately 10,000psi per decade, to the point where the state of the art is now X100 steels, and the use of X120 steels is being considered.



Quenched and Tempered Low-Alloy Steel
By Dr. D.Venkata Ranga Reddy - LDRP Institute of Technology & Research
Gandhinagar, Gujarat

ABSTRACT
Alloy steels are defined as those steels that: (1) contain manganese, silicon or copper in quantities greater than the maximum limits (1.65% Mn, 0.60% Si, and 0.60% Cu) of carbon steel; or (2) that have specified ranges or minima for one or more other alloying additions. The low-alloy steels are those steels containing alloy elements, including carbon, up to a total alloy content of about 8.0%. Low-alloy steels with suitable alloy compositions have greater hardenability than structural carbon steel and, thus, can provide high strength and good toughness in thicker sections by heat treatment. Their alloy contents may also provide improved heat and corrosion resistance.



Siemens VAI Metals and Mining Technologies organised their 2nd worldwide media summit titled -
Global Sustainable Competence from 4th–6th of June 2008 at Cracow in Poland
By Nirmalya Mukherjee, Editor, Steel & Metallurgy

ABSTRACT
Siemens VAI Metals Technologies (MT), a business unit of the Siemens Division Industrial Solutions, is the leading engineering and plant-building company for the iron and steel industry as well as for the flat-rolling sector of the aluminum industry and for open-cast mining. Siemens VAI, which was created from the integration of Voest-Alpine Industrieanlagenbau, Linz/Austria, plus the electrical engineering product business and automation solutions of Siemens, provides a comprehensive range of supplies and services for all related technological processes and integrated automation solutions for the entire life-cycle of metallurgical plants.




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