Casting Grinding Ball

Size: 12.7mm-120mm Surface hardness: hrc58-66 Chemical elements: c: 1.8-3.3; si: 0.3-1.2; mn: 0.3-1.0; s & p: 0.1max; cr: 10-30( details can be adjusted by users demand). Id from 12.7mm to 130mm high chrome grinding media

Cast grinding balls High chrome casting grinding iron ball for mining Application of chrome grinding balls : 1)cement plants 2)mines 3)power stations 4)chemical industries 5)grinding mill, ball mill, coal mill Features of cast balls: 1) in general, high chrome casting grinding iron balls are famous for high hardness: surface hardness is to 60-68 hrc and volume hardness of 58-65 hrc; 2) high impact toughness: impact toughness is more than 12 j/cm2; 3) low broken rate: the actual broken rate is not higher than 1%; 4) wear-resistant: loss of grinding round rate is 80-500g/ton; Specification: 20-150mm Packing term 1) steel drums (with pallet): 850-900kg/drum 2)container bags: 1000kg/bag Steel drum or container bags

1 high chrome casting balls Size: 6mm-120mm Hardness: hrc60-66; chrome content: 10-30% 2 low chrome casting balls Size: 6mm-120mm Hardness: hrc46-53; chrome content: 0.5-3.5% Packing: 1.Container bags 2. Steel drums The major character of our grinding balls is that: high hardness, no breakage, lower wearing, lower price. It is mainly used in cement plants, mines, power stations etc. Our factory manufacture and export high chrome casting ball as follows: Specifications: 1) diameters: dia. 17 - 130mm 2) hardness: hrc 58-63 3) chemical elements(%): C:1.9-3.3 , si:0.3-1.0 , mn:0.2-0.8 , cr:10.0-30.0, p:0. 9 max , s:0.9 max Characteristics: A) high hardness b) no breakage c) even wearing d) good wear resistance Applied fields: A) mines b) cement plants c) power stations d) chemical industry Outer packing: Container bags, steel drums High chrome a Container bags, steel drums

Our factory manufacture and export high chrome casting ball as follows: Specifications: 1) Diameters: Dia.17 - 130mm 2) Hardness: HRC 58-63 3) Chemical elements(%): C: 2.5-3.2, Si: 1.0 MAX, Mn: 0.5-2.0, Cr: 10-14, P: 0.10 MAX, S: 0.06 MAX Characteristics: A) High hardness B) No breakage C) Even wearing D) Good wear resistance Applied fields: A) Mines B) Cement plants C) Power stations D) Chemical industry Outer packing: Container bags, Steel drums Container bags, Steel drums

Shougang steel ball has five series of products with diameter from 10-150mm, including super high chrome grinding media ball, cr:20%-30%; high chrome grinding media ball, cr:10%-20%; medium chrome grinding media ball, cr:3%-7%; low chrome grinding media ball, cr:1%-3%; and multi-component alloy grinding media ball, cr:10%-30%. The products are widely used in mental mining industry, cement plant, coal slurry thermal power, chemical industry, ceramic coatings, light industry paper, powder preparation and ultra-fine deep processing of magnetic materials and other industries. The products is high hardness, good toughness, lowest breakage, good wear resistance; in the process of using the ball , surface hardness as well as the wear resistance will be further improved and can improve the mill production capacity, the cement specific surface area and concentrate recovery rate. The wear resistance of high chrome cast iron balls are 1.8 times greater than common forged steel balls. The grinding media balls for mines and cement industry have a lower wearing rate, could increase the efficiency of mill grinding and processing, the gradation of grinding ball in the mill is stable, also can increase the output production and assurance of the mineral concentrate quality. Cement building materials with high chromium cast iron ball, with high temperature resistance, abrasion, low broken rate and extend the ball with the cycle, reduce the labor intensity of workers, especially can greatly reduce the number of balls and complement.

High hardness:58-65 hrc, Good impact toughness: more than 4j/cm2, Low broken rate: less than 1%, Good wear-resistanct: wearing rate of high cr cast ball is 30-50g/ton in cement industry, 350-430 grams in gold mines and even lower in some iron mines.

High Chrome Cast Grinding Balls Cr12-14% Used in cement, mining and power plant industry. Size: 10-125mm Specifications: C: 2.0-3.4% Si: 1.0%max Mn: 1.0%max P: 0.06%max S: 0.06%max Cr: 12-14% HRC Hardness: 60-66 Microstructure: Martensite + Carbide

Introduction: Dry mill casting steel balls for grinding in power plant Size: diameter 17-150mm Description: High hardness, good wear resistance, good toughness, even wearing, no breakage. Product category: Low chromium casting grinding steel ball Hardness: hrc45-55

Part characteristic The surface hardness of ball will be raised further in using the course, and the wear resistance would gather hard, so can raise mill machine production capacity at the same time, and raises cement ratio surface area and reclaim ratio of the extractive mind. Details view three W dot chinagrindingmedia dot com or Skype: kathysong0425 Specification: A: high hardness in+surface hrc 58-65 and core hrc 56-62 B: good wear resistant C: few breakages D: no mal-roundness. Woven bag or steel drum.

Our cast iron grinding balls can be divided into three categories including the high chromium type, medium chromium type and the low chromium type. 1. The quality index of the high chromium type The chromium content of the high chromium type product is greater than or equal to 10.0%. And the carbon content is between 1.80% and 3.20%. It is required by the national standard that the hardness of the high chromium type product must be no less than 58hrc, and that the impact value should be greater than or equal to 3.0j/cm. This type of product must go through the hot quenching and the tempering treatment to come up to the hardness. Currently at home, there are two quenching methods for this type of product including oil quenching and wind quenching. If the tested hardness of this type of product is below 54hrc, then it shows that the quenching treatment is omitted. 2.The quality index of the medium chromium type The medium chromium type cast iron grinding ball is defined as the chromium content ranging from 3.0% to 7.0%, and the carbon content coming between 1.80% and 3.20%. Its impact value should be no less than 2.0j/cm. . The national standard requires the hardness of this type of product should be greater than or equal to 47hrc. For ensuring the quality, the medium chromium type product should be processed with high temperature tempering to eliminate the casting stress. If the surface of the steel ball assumes the dark red color, it proves that the steel ball has been processed with high temperature tempering. If the surface of the steel ball still comes with the metal color, then, we can judge that the steel ball doesn’t go through the high temperature tempering treatment.