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PRODUCT CENTER
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20-150mm Forged Grinding Media Balls for Ball Mill
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- Product Description
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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, ChinaKey words:- ball
- steel
- hot
- rolling
- hardness
- amp
- mill
- mine
- 0.17
- 0.25
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CONTACT US
Mobile : +86-13006581008
+86-15588865140
WhatsApp : +86-13006581008
Email : Gao@jiadeforging.cn
Address : Dongzhao Industrial Park, Puji Street, Zhangqiu District, Jinan City, Shandong Province
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