Casting iron balls include high chromium balls, medium chromium balls and low chromium balls. Quality index of high chromium casting ball: The chromium content of the high chromium ball is 10.0% or more. The carbon content is between 1.80% and 3.20%. According to national standards, the hardness of the high chromium ball must be no less than 58hrc, and the impact value should be greater than or equal to 3.0j/cm2. To achieve this hardness, the high chromium ball must be quenched and tempered at high temperature. At present, there are two methods for quenching high chromium balls in China, including oil quenching and wind quenching. If the test hardness of the high chromium ball is lower than 54HRC, it means that it has not been quenched. Quality index of medium chromium casting ball The specified chromium content of the medium chromium ball ranges from 3.0% to 7.0%, and the carbon content is between 1.80% and 3.20%. Its impact value should not be less than 2.0j/cm2. According to national standards, the hardness of the chrome ball should be greater than or equal to 47hrc. In order to ensure quality, medium chromium balls should be tempered at high temperature to eliminate casting stress. If the surface of the iron ball is black and red, it proves that the iron ball has been tempered at high temperature. If the surface of the iron ball still has the metal color, we can judge that the iron ball has not undergone high temperature tempering treatment. Quality index of low chromium casting ball Generally speaking, the chromium content of the low chromium ball is 0.5% to 2.5%, and the carbon content is from 1.80% to 3.20%. Therefore, according to the national standard, the hardness of the low chromium ball should be no less than 45hrc, and the impact value should be no less than 1.5j/cm2. Low chromium balls also need high temperature tempering treatment to ensure quality. This treatment can eliminate casting stress. If the surface of the iron ball is dark red, it indicates that it has undergone high temperature tempering treatment. If the surface is still metallic color, it means that the iron ball has not been tempered at high temperature. Casting iron balls are usually used in various large-scale mines, cement plants, chemical plants, power plants, quartz sand plants, silica sand plants, etc.
Diamond CBN Wheels
We are a professional grinding balls manufacturer.We can produce grinding balls diameters from10-150mm,and Cr percentage from2%-25%.
Application: Mines, cement plants, power stations Process: .Raw material .Cutting .Heated .Forged .Quenching .Tempering .Testing .Qualified products .Packing Unbreakable 0.5max Place of origin hebei, china (mainland) Brand name goldpro Model number gn-2 Application powder station, cement, mining.. Material steel Dimensions 130mm Density 7.80-7.85g/cm3 Impact to broken (times) 20, 000 Izod impact strength 12-35j/cm2 Hardness surface58-61hrc , core 56-63hrc Breakage rate real 0.3% Material b2/b4/b6/bu/65mn/60mn meet client's specical needs Standard yb/t091-2005 Packing weave bag 1000kg/bag*steel drum/850kg/drum Productive technology forging /hot-rolling Certification iso 9001-2008 ;iso14001:2004;gb/t28001-2001 1, container bag:gw 1000kg (1.5 kg/per bag) 2, iron drum: Gw 1000kg to 20mm-40mm, Gw 960kgs to 40mm-60mm, Gw 930kgs to 60mm-80mm, Gw 900kgs to 80mm-100mm, Gw 850kgs to 100mm-150mm, (18kgs/per drug)
Forged Steel Grinding Media Balls 80mm for Ball Mill Diameter: 80mm Hardness:HRC60-65 Available Quantity: 200 tons Packages: steel drums or big bags Applied Fields: wet grinding of copper, gold,uranium ore, clinker, limestone, coal and other materials etc 3 Inch 80mm Steel Grinding Media Balls for Mine Ore Who We Are? 1. One +30-year-old Grinding Media Steel Balls and Rods for mining Manufacturer and Supplier. 2. Full Range of Grinding media steel balls,rods,cylpebs 3. Global Top 500 clients: Forged Grinding Steel Ball for Ball Mill in Mining - 40mm 4. The production lines for grinding steel balls are made and designed by our expertise. And it is the first one production line for grinding rods in China in 2009. For the large quantity required from customers, we can intall another new production lines of grinding balls and expand our production to meet the customers' requirements. 5. We can offer the 24hours online service for any questions or requests.
Chromium casting grinding ball m 7%-10% Size(|¦ì):10-130mm Hrcy47 Industry fields:mining/coal grinding/other wet applications 3.High chromium 10%-14% Size(|¦ì):10mm-130mm Hrcy58 Industry fields: cement-dry grinding/mining/coal grinding/power stations/chemical industries/other wet applications 4.Special high chromium ¡y14% Size(|¦ì):10-130mm Hrcy60 Industry fields: cement-dry grinding/metallurgic mine/power stations/chemical industries or other wear big business Bag:1t/bag 0.23m^3 Drum: 800-900kg/drum 0.244m^3
Features and Advantages of Forged Steel grinding media Ball : Concentrating on wear-resistant grinding material for 30 years, Huamin Brand steel grinding media ball is excellent in surface quality, hardness, and resistant to impact and abrasion. It won't crack and lose circularity easily. 1) High Hardness: Huamin forged grinding media steel ball has high hardness: surface hardness can reach to 55-67 HRC, volume hardness 56-64 HRC 2) High Impact Toughness: impact toughness is more than 12 J / cm2. 3) Low Broken Rate: peel fragmentation resistance property of over 20000 times. The actual breakage rate is less than 1% and close to 0. Raw Material of grinding media balls As we know, the quality of forged grinding piece depends on the material by 80%. Our products use high-quality round steel from national large-scale steel mill to insure the quality of our products. Forged Steel media Ball Products Show: Our products range from 20mm to 150mm, 1 inch to 6 inch, and we can also offer all size of products according to clients' demand. Packing Instruction: Strong Nylon Bag: Avalible Bag: 500kg; 1000kg The Production Line And Equipment: The self-developed automatic steel grinding ball production line is our qualified product, and it has won Chinese invention patent. It uses electric furnace instead of conventional coal combustion method,and the rotary cutting technique replaces traditional air hammer, thereby improving production efficiency by 30 times
Dia 20mm --- dia 150mm; the high, medium and low chrome alloyed casting iron balls: dia17mm --- dia 190mm. By steel drum
Shandong Huamin Steel Ball Joint-stock Co.,Ltd(Shandong Huamin Casting and Forging Joint-stock Co.,Ltd) is one of the largest manufacturers and exporters for grinding steel ball and rod mill in China, the annual production output is 200,000 metric tons. Our products are mainly exported to USA, Canada, Chile, South Africa, Italy, Greece, Korea and Japan more than 30 countries and regions in the world. Product Description Our cast iron grinding balls can be divided into three categories including the high chromium type, medium chromium type and the low chromium type. 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 1.8% 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 3.0 J/cm2. This type of product must go through the hot quenching and the tempering treatment to come up to the hardness. Currently in China, 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. Testing Our lab is equipped with advanced testing machine to strictly control the quality of the product. Packaging Barrel with wooden pallet: Steel Drum or Steel Barrel Two Barrel tie on the wooden pallet, steel tape for bundle Strong Nylon Bag: Avalible Bag: 50kgs; 100kgs; 1000kgs Certifications Our company has obtained ISO 9001 International Quality System Authentication, ISO14001 Environmental System Management Authentication and ISO18001 occupational health and safety certification, safety standardization identification, clean production enterprise certification. �¯�¿�½?�?� We welcome customers both at home and abroad to come to negotiate business with us, we sincerely promise you. We are trying our best to supply you with high quality products, reasonable price, timely delivery with satisfactory service as the basis of our long-term cooperation. �¯�¿�½?�?� Insisting on the theory of "Credit Goal, Quality Life, Market First, Customer God", our company is establishing the largest professional producing and exporting base in China, which include grinding steel balls and rod mill products. "Winning on quality, making up to the world" is our eternal promise.
