Böhler Edelstahl - General Information

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Content . Böhler Edelstahl - General Information . Production Possibilities & New Additive Manufacturing . Product Portfolio Böhler Edelstahl - General Information MISSION We develop, produce and supply high-speed steels, tool steels and special materials for our worldwide customers to offer them optimal solutions. BÖHLER Edelstahl at a glance Worldwide 2016 Production 79 €622 137,000 points of sale million revenue tonnes Advanced 2114 production facilities employees Quality & technology Global 250 LEADER steel grades 100% recyclable Sales revenue by region (FY 2016) 1% 9% 12% Europe America Asia Rest of world 78% Sales revenue by business area (FY 2016) 11% Special materials 41% 21% Tool steel High speed steels Other 27% Business area revenue special materials Automotive Other Engineering 4% 11% 11% Special Oil & Gas, materials CPI High speed Power-Gen steel 21% 41% 43% 15% 27% Tool steel 27% Aerospace Production Possibilities BÖHLER EDELSTAHL Integrated plant configuration Whole melting and re-melting operations at one site Whole hot forming operations at one site Whole heat treatment operations at one site Whole ND-Testing and finishing operations at one site Standard mechanical, metallographic, chemical tests at one site Quality starts here Primary metallurgy EAF/50 t Electric arc furnace VIM Vacuum induction furnace AOD Argon oxygen decarburization VID/14 t Vacuum induction furnace REMELTING Remelting process for high- purity metallurgical materials • ESR • PESR • VAR FORGING TECHNOLOGY 5,200 t forging press Open die forge Bar steel round, flat or freeform geometries up to 45 t. ROTARY FORGE RF 100 RF 100 Bar steel up to 8 t piece weight max. diameter 550 mm ROLLING TECHNOLOGY Block and slab rolling mill Bar steel Round 57 – 180 mm Square 60 – 200 mm Flat 100 – 330 x 15 – 105 mm ROLLING TECHNOLOGY Multi-line rolling mill Multi-line rolling mill Wire 5.0 – 13.5 mm Bar steel round / square 12.5 – 150 mm Bar steel flat width 15 – 300 mm thickness 5 – 80 mm BAR STEEL PROCESSING Round Bar steel surface finishes Turned Peeled Ground Polished …practically ready to use. New AM Melting Equipment Possibilities: Powder for 3D metal printing application Powder for classical PM product development Melts for ingot casting products Batch Size: max. 250 kg (550 lbs) Grades: Alloy 718, Alloy 625, 17-4PH General Information Product Program / Portfolio Martensitics Duplex, Super-Duplex Austenitics Ni-Superalloys F6NM F51 Alloy 28 1.4418 F55 F44 17-4PH F53 XM-19 API 15-5PH F61 S21800 AMS 13-8Mo A286 Summary Strong in high alloyed Fe-based and Ni-based alloys for Oil&Gas Full range of dimensions (rd.5mm / 0.197“ up to rd. 650mm / 25.59“) Strong in optimization of production processes of standard materials used in Oil&Gas Customized product and process development .

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The Parallel Oxidation of Carbon and Chromium
THE PARALLEL OXIDATION OF CARBON AND CHROMIUM IN LIQUID IRON (16oo0 c) by LYALL FRANKLIN BARNHARDT B. Sc. Queen's University (1947) Submitted in partial fullfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY at the Massachusetts Institute of Technology 1965 Signature of Author Department of Metallurgy Signature of Professor in Charge of Research jE Signature of Chairman of - A ii Departmental Committee on Graduate Students VI 38 ABSTRACT THE PARALLEL OXIDATION OF CARBON AND CHROMIUM IN LIQUID IRON (16000c) by LYALL FRANKLIN BARNHARDT Submitted to the Department of Metallurgy in April, 1965, in partial fulfillment of the requirements for the Degree of Doctor of Philosophy. The path followed by carbon and chromium concentrations in liquid iron during oxidation was investigated experimentally by blowing gaseous oxygen on to slag-free iron - chromium - carbon melts at 16004C in an induction furnace. The carbon oxidation reaction occurred at the surface of the melt, with an initial constant rate of decarburization which was dependent on the rate of oxygen input. The mechanism of this reaction is expressed in the chemical equation: C + 1/2 02 (g) = CO (g). During the initial stage, which was characterized by a constant rate of decarburization, carbon oxidized preferentially with no loss of chromium. Beyond this stage, the rate of carbon loss declined rapidly and the oxidation of iron and chromium occurred. The entry of argon into the furnace atmosphere, during the oxygen blow, lowered the partial pressure of carbon monoxide at the metal surface. This allowed the carbon concentration of the melt to drop far below the equilibrium iii carbon content for one atmosphere pressure of carbon monoxide.
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Vacuum Induction Melting Furnaces
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