Casting Iron Steel Ball Mill Grinding Ball

The product description: 1 high chromium casting ball Hardness: hrc 60-66 Microstructure: m+c Chemical composition(%):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 2 medium chromium casting ball Hardness: hrc 48-55 Chemical composition(%): c:2.0-3.3, si:0.3-1.0;mn:0.3-1.0, cr:3.0-6.0, P:0.1 max, s:0.12 max Microstructure: p+c 3 low chromium casting ball Hardness: hrc46-53 Chemical composition(%):c:2.0-3.3, si0.3-1.0, mn:0.3-1.0, cr:1.0-2.5, P:0.1 5 max, s:0.20 max Microstructure: p+c Grinding media ball, grinding steel balls for mines, cement plants Forged steel balls: Diameter:20mm-150mm Hardness: hrc55-65 2.High chrome casting iron balls: Diameter:17mm-120mm Cr content:10-14% Hardness:hrc60-66 Features: high and steady hardness, no breakage, good wear resistance and even good wearing. 3.Grinding steel rods in rod mills: Diameter:10-100mm Length:2.5m-6m Hardness:hrc40-55 Features: steady hardness, straightness, and good wear resistance. We have established and are establishing friendly good cooperation with some famous mines in the world, such as anglo gold, codelco, bhp, erdenet copper corporation etc. So please inform us if you are interested in our products, we can discuss more on our business. Container bags, steel drums£¨1000kg£©

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.

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

(1) Product Superior raw materials, advanced automated equipment, unique heat treatment technique and strict quality control system contribute to better performance for the general hardness of shandong iraeta grinding steel ball. 1) production standard Yb/t091-2005 2) size: 25-150 mm 3) surface hardness Hrc57-67 hrc 4) volume hardness Hrc56-64 5) breakage rate

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Buyer: In shell pecan nut, macadamia nut

Scope widely used in various mines, cement plants, power plants and chemical industry. Our cast iron grinding balls can be divided into three categories including the high chromium type, medium chromium type and the low chromium type. Grinding cast iron ball

Superior raw materials , advanced automated equipment, unique heat treatment technique and strict quality control system contribute to better performance for the general hardness of our grinding steel ball, with surface hardness as high as 55-65hrc, volume hardness as high as 56-64hrc, even hardness distribution, impact toughness larger than 12j/cm2, and breakage rate far lower than 0.5%.