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80mm Forged Steel Grinding Balls B2 HRC≥62 – Low Breakage Rate Supplier for Mining/Cement

PRODUCT PARAMETERS

  • Diameters: 30-150mm
  • Material Options: Premium Alloy Steel / Rare Earth Enhanced
  • Hardness: HRC 60-65 (Industry-Leading Wear Resistance)
  • Core Performance:
    ▶ High Impact Toughness (>12 J/cm² ASTM E23)
    ▶ Ultra-Low Breakage Rate (<0.5% in SAG Mills)
    ▶ Consistent Wear Profile
  • Industrial Applications
    Mining & Mineral Processing (Gold/Copper/Iron Ore)
    Cement Manufacturing (Raw Mill/Clinker Grinding)
    Thermal Power Plants (Coal Pulverization)
    Chemical Processing (Abrasion-Resistant Grinding)
  • Specialized Solution Rare Earth Grinding Balls:
  • HRC 62-65 Extreme Hardness
    30% Longer Service Life vs. Standard Balls
    Corrosion-Resistant for Acidic Slurries
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Description

Technical Specification

Diameter (Inch)Diameter (mm)Weight (kg)Actual diameter range (mm)MaterialSurface hardnessCore hardnessBulk Hardness
(HRC)+/-0.5HRC(HRC)+/-0.5HRC(HRC)+/-0.5HRC
3/4 ”D20MM0.039+/-0.00519.3~22.3B2-163-6662-6463-66
1 ”D25MM0.075+/-0.0124.5~27.5B2-163-6662-6463-66
1 1/4 ”D30MM0.14+/-0.0329.7~32.7B2-163-6662-6463-66
1 1/2 ”D40MM0.31+/-0.0439.6~43.6B263-6662-6463-66
2”D50MM0.59+/-0.0550~54B2-362-6662-6562-66
2 1/2 ”D60MM1.0+/-0.0559.5~64.0B2-362-6562-6462-65
2 1/2 ”D65MM1.25+/-0.0764.0~68.5B2-362-6562-6462-65
2 3/4”D70MM1.35+/-0.168~73B2-362-6562-6462-65
3”D75MM1.9+/-0.175~80B2-362-6562-6462-65
3”D80MM2.3+/-0.1580~84B2-360-6360-6360-63
3 1/2”D90MM3.1+/-0.1589~94B360-6357-6157-61
4”D100MM4.1+/-0.298~103B359-6257-6159-62
4.2”D105MM4.56+/-0.2103~108B359-6257-6159-62
4 1/3”D110MM5.4+/-0.3108~113B359-6257-6159-62
4.5”D115MM6.3+/-0.3113~118B359-6257-6158-62
4 3/4”D120MM7.1+/-0.3118~124B359-6257-6158-62
5”D125MM8.0+/-0.3123~127B358-6257-6158-62

Chemical Composition

MaterialCSiMnP≤S≤CrNi≤
B2,B2-10.70-0.900.15-0.370.70-0.800.0350.0350.20-0.650.25
B2-30.70-1.000.15-0.370.70-0.800.0350.0350.40-0.750.25
B30.58-0.661.30-1.900.40-0.800.0350.0350.70-0.900.25

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