Our factory manufacture and export grinding steel balls as follows: Premium B3 100mm-150mm Grinding Steel Balls for Sag Mill 1. Feature: The forged steel grinding ball is excellent in surface quality, toughness, and resistance to impact and abrasion. It won't crack and lose circularity easily. 1) In general, forged grinding steel ball has high hardness: Surface hardness to 55-67 HRC, volume hardness of 56-64 HRC 2) impact toughness high: Impact toughness more than 12 J / cm2. 3) broken rate is low: Peel fragmentation resistance property of over 20000 times. The actual breakage rate not greater than 1% and close to 0. 2. Specifications: 1) Diameters: Dia. 20 - 150mm 2) Hardness: HRC 55-65 3) Chemical elements(%): C: 0.48-0.85, Si: 0.15-0.37, Mn: 0.7-1.0, P: 0.035 MAX, S: 0.035 MAX 3. Characteristics: A) High hardness B) No breakage C) Even wearing D) Good wear resistance 4. Applied fields: A) Mines B) Cement plants C) Power stations D) Chemical industry China Premium B3 100mm-150mm Grinding Steel Balls for Sag Mill 5. Packing Instruction: Barrel with wooden pallet: Steel Drum or Steel Barrel Barrel size(cm): 89 58 (Volume: 800kgs N. G. Avaliable) Pallet size(cm): 168 59 13 Two Barrel tie on the wooden pallet, steel tape for bundle Strong Nylon Bag: Avalible Bag: 50kgs; 100kgs; 1000kgs 6. Credibility and Certification: 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. Our company has won the "Shandong Province Famous Brand", "Shandong Famous Trademark", "Leading Forged Steel Ball Manufacturer in China ", "High-tech Enterprise "and "Contract Abiding and Promise Keeping Enterprise", etc. 7. Cooperative Partner and Production Line: 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 or even higher. We operate our 80%products into the foreign market, and keep close and cooperation with many companies.