Jamshedpur, India
Jamshedpur, India

For the annual chess tournament, see Tata Steel Chess TournamentTata Steel Limited ) is an Indian multinational steel-making company headquartered in Mumbai, Maharashtra, India, and a subsidiary of the Tata Group. It was the 11th largest steel producing company in the world in 2013, with an annual crude steel capacity of 25.3 million tonnes, and the second largest private-sector steel company in India with an annual capacity of 9.7 million tonnes after SAILTata Steel has manufacturing operations in 26 countries, including Australia, China, India, the Netherlands, Singapore, Thailand and the United Kingdom, and employs around 80,500 people. Its largest plant is located in Jamshedpur, Jharkhand. In 2007 Tata Steel acquired the UK-based steel maker Corus which was the largest international acquisition by an Indian company till that date. It was ranked 486th in the 2014 Fortune Global 500 ranking of the world's biggest corporations. It was the seventh most valuable Indian brand of 2013 as per Brand Finance.On 16 February 2012 Tata Steel completed 100 years of steel making in India. Wikipedia.

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Patent
Tata Steel | Date: 2017-02-01

The invention relates to a method for hot forming a part, wherein the hot forming is performed starting with a metal coated steel blank, which is heated to a temperature between the Ac3-temperatur of the steel and 1000 C in a furnace, after which the heated blank is transported to a hot forming press, and the heated blank is pressed in the hot forming press to form a part. According to the invention, the steel has the following composition in weight%: C: 0.10 - 0.25, Mn: 1.6 - 2.6, Si: (FR)Linvention concerne un procd pour le formage chaud dune pice, dans lequel le formage chaud est ralis partir dune pice brute dacier enduit de mtal, qui est chauffe une temprature entre la temprature Ac3 de lacier et 1000C dans un four, aprs quoi la pice brute chauffe est transporte vers une presse de formage chaud, et la pice brute chauffe est presse dans la presse de formage chaud pour former une pice. Selon linvention, lacier a la composition suivante en % en poids : C : 0,10 0,25, Mn : 1,6 2,6, Si : < 0,4, Cr : < 1,0, Al: < 0,5, P : < 0,02, S : < 0,004, O : < 0,008, N : < 0,03, B : < 0,0004, et facultativement : Ti : < 0,1, Mo: < 0,5, Nb : < 0,3, V : < 0,5, Ca : < 0,05, le reste tant du fer et des impurets invitables, et la pice brute est refroidie entre le four et la presse de formage chaud de telle sorte que la pice brute a une temprature dau plus 770C et au moins 450C lorsquelle est place dans la presse de formage chaud, et la pice forme chaud est au moins partiellement martensitique.


A method for producing a steel substrate coated with a chromium metal-chromium oxide (Cr-CrOx) coating layer in a continuous high speed plating line, operating at a line speed (vl) of at least 100 m-min-1, wherein one or both sides of the electrically conductive substrate in the form of a strip, moving through the line, is coated with a chromium metal-chromium oxide (Cr-CrOx) coating layer from a single electrolyte by using a plating process. The invention also relates to a coated steel substrate and to a packaging made thereof.


Patent
Tata Steel | Date: 2017-02-22

The invention relates to a submerged entry nozzle for use in continuous casting provided with a conduit, distribution zone, two lower and two upper channels and corresponding discharge openings, wherein the geometry of these parts is adapted to maintain the nozzle at all times completely filled with fluid steel resulting in a good control of the jets of fluid steel leaving the nozzle.


The invention relates to a steel strip having a hot dip zinc based coating, the steel strip having the following composition, in weight%,: C: 0.17 - 0.24 Mn:. 1.8 - 2.5 Si: 0.65 - 1.25 Al: 0.3 optionally: Nb: 0.1 and/or V: 0.3 and/or Ti: 0.15 and/or Cr: 0.5 and/or Mo: 0.3, the remainder being iron and unavoidable impurities, with a Si/Mn ratio 0.5 and a Si/C ratio 3.0, with an Mn equivalent ME of at most 3.5, wherein ME = Mn + Cr + 2 Mo (in wt.%) having a microstructure with (in vol.%): ferrite: 0 - 40 bainite: 20 - 70 martensite: 7 - 30 retained austenite: 5 - 20 pearlite: 2 cementite: 1 having a tensile strength in the range of 960 - 1100 MPa, a yield strength of at least 500 MPa, and a uniform elongation of at least 12%.


Patent
Tata Steel | Date: 2017-07-05

The invention relates to a high strength low alloy steel. According to the invention the high strength low alloy steel strip, sheet or blank, coated with zinc or a zinc alloy, has the following composition in weight%: C: 0.03 - 0.07, Mn: 0.70 - 1.60, Si: 0.01 - 0.2, Al: 0.005 - 0.1, Cr: 0.1, Cu: 0.2, N: 0.008, P: 0.03, S: 0.025, O: 0.01, Ti: 0.02 - 0.07, V: 0.04 - 0.15, Mo: 0.03, Nb: 0.03, Ca: 0.05, the remainder being iron and unavoidable impurities, wherein the steel strip, sheet or blank has a yield strength Rp0,2 of at least 420 MPa.


This invention relates to a hot-rolled high-strength steel strip or sheet with excellent roll-forming characteristics and excellent stretch-flange formability suitable for automotive chassis part or the like and, more particularly, to a high-strength steel strip or sheet with tensile strength of 780 MPa or higher, or preferably 950 MPa or higher, with an excellent combination of total elongation, stretch-flange formability and fatigue resistance and to a method of manufacturing said steel strip or sheet, and to the use of said strip or sheet in a part.


Laminate comprising a metal substrate provided with an as cast and subsequently machine direction orientated polyester film laminated on at least one face of the metal substrate the polyester film having a multilayered structure comprising a polyester core and two polyester skin layers, for laminating to a metal substrate, wherein the polyester skin layers each comprise an organic slip additive and wherein the polyester skin layers are free from inorganic particulates that are insoluble in the polyester matrix of the respective skin layer,wherein the amount of slip additive in each skin layer is above 1500 ppm and below 10000 ppm.


The present invention relates to a method for manufacturing a chromium metal - chromium oxide coated substrate by electrolytically depositing a plurality of chromium metal - chromium oxide coating layers on an electrically conductive substrate from an electrolyte solution that comprises a trivalent chromium compound and a chelating agent, wherein the electrolyte solution is free of chloride ions and of a boric acid buffering agent, wherein the electrically conductive substrate acts as a cathode, and wherein an anode comprising a catalytic coating of iridium oxide or a mixed metal oxide or a hydrogen gas diffusion anode is chosen for reducing or eliminating the oxidation of Cr(III)-ions to Cr(VI)-ions, wherein during the deposition of a chromium metal - chromium oxide layer hydrogen bubbles are formed at the strip surface, and wherein between the deposition of the chromium metal - chromium oxide layers, the hydrogen bubbles are removed from the surface of the strip.


Patent
Tata Steel | Date: 2017-04-19

The invention relates to a valve for a high temperature liquid, more in particular for liquid ZnMg, wherein the valve parts are made of ceramic material and graphite to be heat-resistant against the temperature of these liquid metals.


Grant
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: LCE-25-2016 | Award Amount: 11.41M | Year: 2016

The FReSMe project, From Residual Steel gases to Methanol, will produce a methanol that will be demonstrated in ship transportation. This green fuel will be produced from CO2, recovered from an industrial Blast Furnace, and H2 recovered both from the blast furnace gas itself, as well as H2 produced by electrolysis. The two different sources of H2 will enable (i) maximum use of the current residual energy content of blast furnace gas, while at the same time (ii) demonstrating a forward technology path where low carbon or renewable H2 become more ubiquitous. The project will make use of the existing equipment from two pilot plants, one for the energy efficient separation of H2 and CO2 from blast furnace gas, and one for the production of methanol from a CO2-H2 syngas stream. This can be realised with a small amount of extra equipment, including supplemental H2 production from an electrolyser and a H2/N2 separation unit from commercially available equipment. Methanol is a high volume platform chemical of universal use in chemical industry as well as applicable for fuelling internal combustion engines. As such it provides a promising pathway for the large scale re-use of CO2 to decarbonize the transportation and chemical sectors in Europe and decrease the dependence on fossil fuel imports. Production of methanol from CO2 offers the unique combination of scale, efficiency and economic value necessary to achieve large scale carbon reduction targets. The pilot plant will run for a total of three months divided over three different runs with a nominal production rate of up to 50 kg/hr from an input of 800 m3/hr blast furnace gas. This size is commensurate with operation at TRL6, where all the essential steps in the process must be joined together in an industrial environment. The project will address the new integration options that this technology has within the Iron and Steel industry and contains supplementary and supporting research of underlying phenomena.

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