heat treatment of high chrome white iron

Microstructural Characteristics and Mechanical Properties ...

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 ...

Machining and Heat Treating ASTM A-532

Jul 19, 2011· 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 pour...and can be annealed down to 300 BHN and machined. It can then be heat treated to 600+ BHN. Some pump mfgs, such as Weir-Wemco, use this for grit handling vortex impeller pumps.

CN104195420A - High-chrome wear-resistant cast iron ...

The invention discloses a high-chrome wear-resistant cast iron material and a heat treatment method. The high-chrome wear-resistant cast iron material is prepared from iron as a main raw material, and carbon, silicon, manganese, sulphur, phosphorus, chrome, molybdenum, nickel and copper as auxiliary materials in manners of melting and casting after preparation.

White and High Alloy Irons – Tippi Industries

High chromium white irons; Wear- and Abrasion-Resistant White Irons. Nickel-chromium white irons (Ni-Hard) High chromium white irons; Moly-chromium white irons; Many of these special irons are covered by standard specifications, but some are of a proprietary composition. Some require heat treatment to develop their most useful properties.

CN102899469B - Heat-treatment method of high-chromium wear ...

The invention discloses a heat-treatment method of high-chromium wear-resistant white cast iron Cr28. According to the invention, high-chromium wear-resistant white cast iron Cr28 is heated to 1000-1050 DEG C; the white cast iron Cr28 is heated and the temperature is maintained for 1.5-3h; the white cast iron Cr28 is air-cooled to room temperature; the white cast iron Cr28 is heated to 710-730 ...

Heat Treatment in High Chromium White Cast Iron Ti Alloy

Apr 29, 2014· The influence of heat treatment on microstructure and mechanical properties of high chromium white cast iron alloyed with titanium was investigated. The austenitizing temperatures of 980°C and 1150°C for 1 hour each followed by tempering at 260°C for 2 hours have been performed and the effect of these treatments on wear resistance/impact toughness combination is reported.

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 ...

high chromium white iron heat treatment - BINQ Mining

White Iron (part 2) – Houston Heat Treat, Metal Heat Treating .. Heat Treat Industry News. May 05, 2011. White Iron . on the metallurgical precautions during casting and heat treatment of high chrome iron, ASTM-A532, Class . »More detailed

Wear resistance of high chromium white cast iron for coal ...

High chromium white cast iron alloy used in coal grinding components is a material that may present different wear resistance depending on the thermal treatment used in its manufacturing. In this context, the properties of this alloy, containing 22% chromium and 3% carbon, were investigated after applying different heat treatments and their ...

White Iron Foundry - Townley Engineering & Manufacturing ...

With five induction furnaces capable of pouring up to 16 tons of white iron, we consistently have some of the shortest lead times in the industry. Townley Foundry produces many alloys on a regular basis like High chrome HC-27, HC28, NIHARD4 and CM-22 (chrome-moly) for abrasion resistance and HC-34, CD-4 MCU, GR4 and other alloys for better ...

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

White Iron is unalloyed cast iron with low carbon and silicon content such that the structure is hard brittle iron carbide with no free graphite. These irons are limited in application because of the lack of impact resistance and the difficulty in maintaining the structure in thicker sections. ... but heat treatment improves the hardness and ...

Heat Treating of High-Alloy White Cast Irons[1] | Heat ...

High-alloyed white cast irons are an important group of materials whose production must be considered separately from that of ordinary types of cast irons. The metallic matrix supporting the carbide phase in the high-alloy white cast irons can be adjusted by alloy content and heat treatment to develop proper balance between resistance to ...

High Chrome Cast Iron Heat Treatment - MC World

Dec 12, 2018 Common Heat Treatment for the Specific Cast-Iron Types. High-alloy (e.g., high chromium, high nickel-chromium) white irons can be heat treated. For example, nickel-chromium white-iron castings are given a stress-relief heat treatment because, properly made, they have an as-cast

High Chrome White Iron – Abrasion Resistant Cast Irons

High Chrome White Iron – Abrasion Resistant Cast Irons ... After machining it is heat treated to approximately 600 BHN. Get The Facts on Chrome White Iron Download Our Free Alloys Fact Sheet Today. Stay In The Know. Join our email list to receive the latest articles, blogs and product news.

Analysis of the High Chromium Cast Iron Microstructure ...

The heat treatment of chromium cast iron is special precautions . 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 .

Heat Treating ASTM A532 | Chrome White Iron | Penticton ...

Jan 16, 2018· Case Study: Read this case study for a specific example of chrome white iron outperforming AR plate. Microstructure Notes No article on heat treating ASTM A532 would be complete without taking a look at its microstructure. The high level of chromium in high chrome white iron prevents the formation of graphite in the microstructure.

heat treatment and high chrome iron - phumlani-lodge

heat treatment of high chrome white iron Metallurgy of High ChromiumMolybdenum White Iron and Steel Rolls JeanPierre Breyer DirectorResearch heat ... Get Price; Heat treating Wikipedia. Heat treating is a group of ... Heat treatment involves ... showing the differences in lattice structures between alpha iron (low temperature) and gamma iron ...

heat treatment and high chrome iron - phumlani-lodge

heat treatment of high chrome white iron Metallurgy of High ChromiumMolybdenum White Iron and Steel Rolls JeanPierre Breyer DirectorResearch heat ... Get Price; Heat treating Wikipedia. Heat treating is a group of ... Heat treatment involves ... showing the differences in lattice structures between alpha iron (low temperature) and gamma iron ...

Heat Treatment of Cast Irons | 2018-12-12 | Industrial Heating

Dec 12, 2018· Common Heat Treatment for the Specific Cast-Iron Types. High-alloy (e.g., high chromium, high nickel-chromium) white irons can be heat treated. For example, nickel-chromium white-iron castings are given a stress-relief heat treatment because, properly made, they have an as-cast martensitic matrix structure.

(PDF) Microstructure and properties of high chromium cast ...

The effects of chromium, nickel, manganese, molybdenum and silicon are discussed in relation to recently developed heat treatment procedures by which high-chromium white iron castings can be ...

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.

high chrome cast iron heat treatment - Bryan D. Hellmann ...

Heat Treating of High-Alloy White Irons :: Total Materia Article. The high-alloy white irons are primarily used for abrasion-resistant applications and are readily cast in .

Heat treatment process of the high chrome cast iron ...

The microstructure of high chromium white cast iron grinding ball as-cast and after heat treatment was observed by metallographic microscope. The sample of 10mm* 10 mm* 8 mm in size at the center of the grinding ball was cut by weld and polished with 200 # to 1500 # metallographic sandpaper.

Heat treatment process for high chromium grinding ball

Heat treatment of high chromium grinding ball is the main method to obtain good wear resistance. The research on high chromium cast iron ball mainly focuses on chemical composition selection, heat treatment process determination, modifier selection, good carbide type and wear mechanism.