Wear Resistant Forged Grinding Balls for Mining

1. Product Introduction 10-150 mm hot rolling steel balls (grinding media) are manufactured byJia De ’s automatic hot rolling & heat treatment production line. The steel ball adopts high-quality alloy steel bar raw material, through heating, hot rolling, quenching & tempering gradient hardening treatment. It balances surface hardness and core toughness, featuring low breakage rate, good roundness, stable wear resistance. Widely used in ball mills for gold mine, copper mine, iron mine and cement plant mineral grinding. 2. Production Process Raw steel bar → Cutting → Heating → Hot Rolling → Quenching → Tempering → Hardness Test → Appearance Inspection → Packaging 3. Technical Specifications（90mm Hot Rolling Steel Ball） Item Parameter Diameter 40-150 mm Diameter Tolerance ±1 mm Material Optional 45# / 50Mn / 60Mn / 65Mn Surface Hardness 48~65 HRC (Depends on steel grade) Core Hardness 45~58 HRC Breakage Rate ≤0.5% Impact Resistance High toughness, not easy cracking or out-of-round Inspection SGS / CNAS third-party test available Material Chemical Composition Reference Grade C(%) Mn(%) Cr(%) Si(%) S(Max) P(Max) 45# 0.42~0.50 0.70~0.80 ≤0.25 0.17~0.37 0.035 0.035 50Mn 0.48~0.56 0.70~1.00 ≤0.25 0.17~0.37 0.035 0.035 60Mn 0.57~0.65 0.70~1.00 ≤0.25 0.17~0.37 0.030 0.030 65Mn 0.60~0.70 0.90~1.20 ≤0.25 0.17~0.37 0.030 0.030 4. Application Scenarios ✅ Metal mines: Gold, copper, iron, lead-zinc mine ball mill ✅ Cement plant raw mill & clinker mill ✅ Quartz sand, power plant desulfurization grinding 5. Factory & Supply Information - Origin: Jinan, Shandong, China - Supply Capacity: Up to 50,000 tons / year - Lead Time: 20~45 days - MOQ: 25 tons - Certificates: ISO9001, SGS, CNAS test report - Packing: Steel drum (1 ton/drum) or bulk in container 6. Product Advantages 1. Gradient hardening process, high wear resistance and good inner toughness 2. Low breakage rate, reduce mill shutdown and maintenance cost 3. Strict batch inspection, hardness & metallurgical record filed for each batch 4. Large-scale stable supply, export to Australia, Peru, Indonesia, Philippines, USA mines 7. Contact Info Company: Jinan Jiade Forging Co., Ltd. Website: https://www.jiadeforging.cn/ Email: Gao@jiadeforging.cn Address: Jinan City, Shandong Province, China

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