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Metallurgical Aspects of HIGH- CHROMIUM WHITE IRONS


1 High chromium cast iron

High chromium cast iron is the third generation of wear – resistant material after common white cast iron and nickel hard cast iron.It is much higher than alloy steel wear resistance, much higher than the general white cast iron toughness, strength, at the same time it also has good resistance to high temperature and corrosion performance, in addition to convenient production, moderate cost ...

High-Alloy White Irons - Materials Database

Nickel-chromium white ... greater toughness. A special grade, class J type C, has been developed for producing grinding balls and slugs. Here, the nickel-chromium alloy composition has been adapted for chill casting and specialized sand casting processes. The Class I type D (Ni-Hard 4) alloy is a modified nickel-chromium iron that contains higher levels of chromium, ranging from 7 to 11%, and ...

weld repair high chrome white iron

Nickel Chromium White Iron Grinding Balls - YouTube. Jan 3, 2014 ... high chromium white cast iron grinding balls Description : Selection of ... Victor Safe Restoration - Part 2: Repairing Broken Cast Iron by Brazing... More details » Get Price

Analysis of the High Chromium Cast Iron Microstructure ...

Analysis of the High Chromium Cast Iron Microstructure after the Heat Treatment ... Chromium cast iron belong white cast iron, therefore is sensitive to the cooling rate may result in formation of cracks in castings [1-11 Currently, in the literature there is a lot of informa treatment of chromium cast iron, but it appears that they conflict with each other. Therefore, a series of tests must ...

Heat Treating of High-Alloy White Irons :: Total Materia ...

Nickel-chromium white iron castings are given a stress-relief heat treatment because, properly made, they have a martensitic matrix structure, as-cast. Tempering is performed between 205 to 260°C (400 to 450°F) for at least 4 h. This tempers the martensite, relieves some of the transformation stresses, and increases the strength and impact toughness by 50 to 80%. Some additional martensite ...

crusher high chromium cast iron - cafe-zaalbergrust.nl

Nickel Chromium White Iron Grinding Balls - YouTube. Jan 3, 2014 ... white high chrome cast iron grinding balls - Crusher South Africa. high chrome cast white iron grinding ball. ... For hard and decorative chrome... Optimization of Abrasive Wear Behavior of High Chromium Cast Iron ... May 1, 2012 ... Abrasive wear behavior of two crushers made of Hadfield steel and high chromium cast iron …

Microstructural Characteristics and Mechanical Properties ...

and to form chromium carbides which are harder than iron ones. Most of them also contain nickel, molybdenum, copper or combinations of these alloying elements in order to prevent the formation of pearlite in the microstructure [1,2]. The chromium-molybdenum white irons (class II of ASTM A532) contain 11 to 23% Cr and up to 3% Mo and some Ni and Cu and can be supplied; either as-cast with …

High chrome cast white iron grinding ball

Nickel Chromium White Iron Grinding Balls. Magnetic Separation Production Line of Changning Manganese Mine in Hunan Province. Super High Chrome Cast BallCr2028Tangshan. Magnetic Separation Production Line of Changning Manganese Mine in Hunan Province. CN102676909B Method For Manufacturing Highchrome Cast. Magnetic Separation Production Line of Changning Manganese …

Ni-Hard - Nickel Institute

As grinding balls, mill liners, pulverizer rings and roll heads, slurry pump parts, ... nickel and chromium to give high hardness and outstanding resistance to abrasion. There are two distinct groups of Ni-Hard compositions: • the medium alloyed Ni-Hard 1 and Ni-Hard 2 with, nominally, 3.3% (resp 2.6%) C, 4% Ni, 2% Cr • Ni-Hard 4 with, nominally, 3% C, 9% Cr, 5% Ni, 2% Si. These three ...

Microstructural Characteristics and Mechanical Properties ...

and to form chromium carbides which are harder than iron ones. Most of them also contain nickel, molybdenum, copper or combinations of these alloying elements in order to prevent the formation of pearlite in the microstructure [1,2]. The chromium-molybdenum white irons (class II of ASTM A532) contain 11 to 23% Cr and up to 3% Mo and some Ni and Cu and can be supplied; either as-cast with …

crusher high chromium cast iron - cafe-zaalbergrust.nl

Nickel Chromium White Iron Grinding Balls - YouTube. Jan 3, 2014 ... white high chrome cast iron grinding balls - Crusher South Africa. high chrome cast white iron grinding ball. ... For hard and decorative chrome... Optimization of Abrasive Wear Behavior of High Chromium Cast Iron ... May 1, 2012 ... Abrasive wear behavior of two crushers made of Hadfield steel and high chromium cast iron …

Ni-Hard - Nickel Institute

As grinding balls, mill liners, pulverizer rings and roll heads, slurry pump parts, ... nickel and chromium to give high hardness and outstanding resistance to abrasion. There are two distinct groups of Ni-Hard compositions: • the medium alloyed Ni-Hard 1 and Ni-Hard 2 with, nominally, 3.3% (resp 2.6%) C, 4% Ni, 2% Cr • Ni-Hard 4 with, nominally, 3% C, 9% Cr, 5% Ni, 2% Si. These three ...

Chromium White cast iron grinding ball - Ningguo …

High Chromium White cast iron grinding ball is also known as high chromium alloy casting ball, high chromium steel ball, referred to as high chromium ball. At present, most of the domestic wear-resistant material enterprises take the medium frequency electric induction furnace as the main body, through the reasonable matching of high-quality scrap steel, chromium alloy materials melting, as ...

Heat treatment process for high chromium grinding ball

The heat treatment process of high chromium cast iron grinding ball includes wind quenching, oil quenching, and special quenching solution treatment. After repeated test and mining, the oil quenching can fully meet all its technical specifications The consumption of iron ore is twice that of iron ore. The heat treatment process is the use of two-stage heat quenching and low-temperature ...

Effect of deep cryogenic treatment on the microstructure ...

cast high chromium and nickel-chromium iron balls. The con-sumption of grinding media in the mineral processing industry rendersa substantial costfor …

Exotic Thermite Series Ep. 1: Iron, Chromium, Stainless …

28/08/2017· Next up is Nickel, Cobalt, Manganese, and Tin! Maybe some alloys as well like Ferromanganese and NiChrome. After that I plan on having a "boosted and high temperature" third episode, but I'll ...

White Cast Iron – IspatGuru

These white cast irons are being produced for over 50 years and are the oldest group of high alloy white cast iron of industrial importance. Ni hard white cast irons are very cost effective materials for use in crushing and grinding. These are martensitic white cast irons where Ni is the primary alloying element. Ni at levels of 3 % to 5 % is effective in suppressing the transformation of the ...

「high chromium white cast iron grinding balls」

In this study, the abrasive wear performance of different heattreated boron alloyed high chromium cast iron ore grinding balls was examined. Laboratory tests were carried out using pinondisc and rubber wheel abrasive testers. Three different loads 32.3, 53.7 and 83.7 N were applied for twobody high stress abrasion tests on pinondisc.

white high chrome cast iron grinding balls

white high chrome cast iron grinding balls - phmbfo. The Properties and Performance of Cast Iron Grinding Media. metallurgical system have led to the use of high chromium cast iron balls in all types of grinding. Chat With Sales. Iron Ball Manufacturers, Suppliers & Dealers - TradeIndia. Chat Online

white high chrome cast iron grinding balls

white high chrome cast iron grinding balls - phmbfo. The Properties and Performance of Cast Iron Grinding Media. metallurgical system have led to the use of high chromium cast iron balls in all types of grinding. Chat With Sales. Iron Ball Manufacturers, Suppliers & Dealers - TradeIndia. Chat Online

White Cast Iron – IspatGuru

These white cast irons are being produced for over 50 years and are the oldest group of high alloy white cast iron of industrial importance. Ni hard white cast irons are very cost effective materials for use in crushing and grinding. These are martensitic white cast irons where Ni is the primary alloying element. Ni at levels of 3 % to 5 % is effective in suppressing the transformation of the ...

Two- and three-body abrasive wear behaviour of …

In this study, the abrasive wear performance of different heat-treated boron alloyed high chromium cast iron ore grinding balls was examined. Laboratory tests were carried out using pin-on-disc and rubber wheel abrasive testers. Three different loads (32.3, 53.7 and 83.7 N) were applied for two-body high stress abrasion tests (on pin-on-disc). Low stress abrasion tests were performed with a ...

High chromium ball mill - lindenbos.be

High chromium dia iron cast steel ball with cylpebs ... Forged and high cr cast grinding ball for ball mill used in mining. No Broken High Hardness Good Wear Resisitance ball mill steel balls. No Breakage Grinding Steel Balls for mining and Cement / steel mill media. Cast iron and forged Grinding Steel balls , Dia 140mm grinding media ball ...

Effect of deep cryogenic treatment on the microstructure ...

A variety of grinding media available for these grinding applications include heat treated and as-rolled grinding rods, forged steel balls, cast high chromium and nickel-chromium iron balls. The consumption of grinding media in the mineral processing industry renders a substantial cost for size reduction or communication processes. For betterment of wear performance in ball and rod mills, the ...

High chrome cast white iron grinding ball - Henan …

Nickel chromium white iron grinding balls. 04172013 CN103045932A Ductile cast iron grinding ball with high wear microalloy low chromium white iron grinding ball and manufacturing method thereof Read more The optimum position of a nickelchromium white iron alloy depends on the class J type C has been developed for producing grinding balls and slugs . Live Chat. Nickel Iron Alloys High …

High Chrome Cast White Iron Grinding Ball

Wear resistance of high chromium white cast iron for coal . 2016-10-27 high-chromium white cast iron High chromium white cast iron alloys have a relatively good wear resistance when compared to other metallic materials, but the level of resistance varies according to the type of matrix microstructure and the volumetric fraction of the primary carbides in the alloy [14-16].

The Selection Design and Application of Mill Liners for ...

> Safety inside mill- balls drop Source: Growth Steel Group Library (2013) ... applications as ball mill liners and grinding balls Typical microstructure of class 1 type D nickel-chromium white cast iron. Source: Perez and Stameroff (2003) > Mineral Processing > RESOURCE PROJECTS > TECHNOLOGY > INTEGR > Engineering Design > Training > Specialist ServicesATED SERVICES High Chrome/Moly Iron ...

Low white cast iron grinding slug - Norcast Corporation

23/07/1991· Compositional ranges suggested for the manufacture of Ni-Hard grinding balls and slugs are about 3% carbon, 0.5% silicon, 0.5% manganese, 1.5-4% nickel and 1.0-2% chromium, the rest being iron. A low alloy white cast iron having a hardness and a microstructure similar to those of Ni-hard was disclosed in Canadian Patent No. 1,125,056 owned by the present assignee.