• High Chromium Cast Iron: Part One :: Total Materia Article

    The high controlled percentage of chromium helps to retard the formation of graphite and stabilize the carbides. The article of D. Kopyci艅ski et al. presents results of heat treatment on the high chromium cast iron. The study was carrying out on samples cut from the casting made from chromium cast iron.

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  • Machining and Heat Treating ASTM A532

    Likes (Received) 70. Machining and Heat Treating ASTM A-532 Does anyone have any experience working with ASTM A-532 25% high chrome iron? These are cast parts. A-532 Grade III is about Rc42/400 BHN at pourand can be annealed down to 300 BHN and machined. It can then be heat treated to 600+ BHN.

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  • Effect of Alloying Elements on Heat Treatment Behavior of

    Keywords: high chromium cast iron, alloying element, heat treatment, hardness, volume fraction of retained austenite 1. Introduction High chromium cast irons, which contain 12 to 30mass%Cr and 1.8 to 3.6mass%C are well known as abrasion wear resistant materials. It is said that their microstructures consisting of hard eutectic carbides of (Cr,Fe) 7C 3 or M 7C.

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  • Effect of Heat Treatment on Microstructure and Mechanical

    Wear performance of high chromium white cast iron. Quenching, seeding and micro-alloying can, to a limited extent, increase the wear resistance, but this is best achieved by heat treatment in the solid state. The methods for producing high chrome iron casting include double pour, continuous pour and centrifugal castings [1, 3.

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  • Microstructure and properties of high chromium cast irons

    Chromium cast irons: effect of heat treatments. and alloying additions. E. Karantzalis, A. Lekatou * and H. Mavros. Different combinations of critical and subcritical heat treatments variously modify the initial as cast. microstructure of high chromium white cast irons leading to secondary carbide precipitation of. different extent and nature.

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  • Heat Treatment in High Chromium White Cast Iron Ti Alloy

    ABSTRACT The effect of niobium additions on the as-cast microstructure of a hypoeutectic high-Cr cast iron containing 2.2 wt.% C and 16.5 wt.% Cr was investigated.

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  • High Chrome Cast Iron Heat Treatment

    Astm a532 high chrome cast iron slurry pump part. Astm a532 high chrome cast iron slurry pump impeller we can supply whole range of spare parts for our all kinds of slurry pumps we have our own foundry machine shop heat treatment equipment assembly shop and laboratory . remove; Taibang wear resistant metal technology ltd.

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  • high chrome cast iron heat treatment

    High chrome cast iron heat treatment offers 21377 resistance heat treatment products. About 58% of these are industrial furnace, 2% are cast and forged, and 1% are other metal heat treatment options are available to you, such as stainless steel, steel, and iron.

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  • Heat treatment effect on microstructure hardness and wear

    Heat treatment effect on microstructure, hardness and wear resistance of Cr26 white cast iron. The optimal heat treatment process is 2 h quenching treatment at 1000 掳C, followed by a subsequent 2 h tempering at 400 掳C. The hardness of HCCI is related to the precipitation and redissolution of secondary carbides in the process of heat treatment.

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  • Optimizing hardenability of high chromium white cast iron

    In high-Cr white cast iron when the Si content is higher than 0.6%, formula (1) can not be used to calculate the t. The silicon element decreases the hardenability of the high-Cr white cast iron. The contents of alloying elements given in Figs. 3 and 4 were the same except for Si (the content of Si was 0.93% in Fig. 4).

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  • Wear and Abrasion Resistant Cast Irons (White Irons) | Grades

    Wear and Abrasion Resistant Cast Irons (White Irons) Click here for the Metallurgy of Cast Iron. White cast irons are widely used in abrasive wear applications involved in the crushing, grinding, milling and handling of abrasive materials such as minerals and ores, both dry and as slurries.

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  • Wear resistance of high chromium white cast iron for coal

    After destabilization treatment, the results show wear behavior differences in the II D alloy, as-cast and annealed. 2. Bibliographic review 2.1. High-chromium white cast iron characteristics High-chromium white cast irons are ferrous alloys containing 11-30% Cr and 1.8-3.6% C along with variable amounts of molybdenum, manganese, copper and.

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  • Properties and Applications of NiResist and Ductile Ni

    Ni-Resist Austenitic Cast Iron Alloys There are two families of Ni-Resist austenitic cast irons. These are the standard or flake graphite alloys and the ductile or spheroidal graphite alloys. As time passes, the spheroidal grades, because of higher strength, ductility and elevated temperature properties, are becoming more prominent.

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  • Microstructural Characteristics and Mechanical Properties of

    Changing in chemical composition and heat treatment carried out to this alloy from about 205 MPa for high-carbon grades to about 415 MPa related to microstructural characteristics and mechanical properties of high Cr white cast iron alloys are oresented. Keywords: High-Cr WCI alloys, microstructural characterization, abrasive wear resistance.

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  • annealing and rehardening ASTM A53293 Class III Type A high

    My question is, can high chrome cast iron be heat treated to re-harden to 500 HB after annealing or even tempering to 400? Some of the curves in the Abrasion Resistant Cast Iron Handbook suggest some high chrome irons can end up with vastly different hardnesses even after tempering to the same temperature, depending on retained austenite.

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  • high chrome cast iron heat treatment

    High chrome cast iron heat treatment durbanlizardscoza. Effect of heat treatment on microstructure and mechanical properties , Jul 25, 2008 , hypereutectic high chromium white cast iron was investigated. Analysis of the High Chromium Cast Iron Microstructure , Get Price.

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  • High Chrome Cast Iron Balls

    Process features of cast iron balls: Heat treatment process---we have two sets of heat treatment production is oil quenching,the other is air that the grinding balls can be burning through andquenching the grinding media has the characters of high hardness, good toughness,low wear rate,low break rate,wear.

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  • Heat Treatment of High Alloy Graphite Irons | Cast Irons

    High silicon and Si-Mo nodular irons are used for manifolds and turbocharger housings for trucks, etc., and for heat treating racks. Heat Treatment: Although high-silicon grey and nodular irons are mainly ferritic (as-cast), but may contain some pearlite and often carbides due to addition of carbide-forming elements, Cr, Mo, which make the.

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  • Cast Irons Phase Transformations and Complex Properties

    A high cooling rate and a low carbon equivalent favours the formation of white cast iron whereas a low cooling rate or a high carbon equivalent promotes grey cast iron. During solidification, the major proportion of the carbon precipitates in the form of graphite or cementite.

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  • Products | Alloys | High Alloy Cast Irons

    The high-chromium cast irons respond to heat treatment when the carbon and chromium contents are appropriately adjusted. However, machining of these alloys is very difficult. Chromium is added to heat-resistance cast irons because it assists in stabilizing carbides and forms a protective oxide on the metal surface.

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  • Lodge Cast Iron | HeatTreated Iron Use Care

    Lodges Heat-Treated Iron is cast just like our traditional cast iron, and then put through a patented heat-treating process that inhibits rust. Yes, you read correctly, this cast iron is resistant to rust! The iron is heated in a special oven at high temperatures, changing the molecular structure of the iron. This is not a coating of any kind.

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