Contact Platform Support
Help CenterForged Steel Grinding Balls HRC55-65 Low Breakage High Impact Toughness For SAG Mill Ball Mill Mining
Product Spotlights
Related Products
-
Forged Steel Grinding Balls HRC55-65 Low Breakage High Impact Toughness For Mining Cement Ball Mill SAG MillUS$ 600 - 1200MOQ: 27 Metric Tons -
Chromium Alloy Cast Grinding Balls Cr 1%-30% High Hardness Low Breakage For Mining Ball Mill Cement PlantUS$ 600 - 2000MOQ: 27 Metric Tons
-
Chromium Alloy Cast Cylpebs Cr 1%-15% High Hardness Low Breakage For Mining Cement Fine GrindingUS$ 600 - 1200MOQ: 27 Metric Tons
-
High Silicon Chrome Alloy Cast Grinding Balls Cr 8%-12% High Hardness 62HRC Low Breakage Excellent Wear Resistance For Mining Cement Ball MillUS$ 1000 - 1500MOQ: 27 Metric Tons
-
CADI Grinding Balls – Advanced Austempered Ductile Iron for SAG Mills, Work Hardening 60-63HRC, 8-25J/cm² Impact, 5%-10% Energy SavingUS$ 900 - 1500MOQ: 27 Metric Tons
Forged Steel Grinding Balls – High Impact Toughness, Low Breakage for SAG Mills & Ball Mills
Product Description
Ningguo Huafeng supplies forged steel grinding balls manufactured by hot-rolling or hot-forging from premium alloy steel rounds (45#, 50Mn, 60Mn, 65Mn, B2, B3). After quenching and tempering heat treatment, these balls achieve high hardness (55-67 HRC), excellent impact toughness (≥12 J/cm²), and low breakage rate (≤1%), making them ideal for SAG mills and ball mills in mining, cement and thermal power plants.
Key Technical Parameters
- Diameter: 20mm – 150mm
- Surface Hardness: 55 – 67 HRC
- Core Hardness: 50 – 63 HRC
- Hardness Difference (surface to core): ≤5 HRC
- Impact Toughness: ≥12 J/cm²
- Breakage Rate: ≤1% (20-80mm); ≤1.5% (90-150mm)
- Falling Ball Test: ≥10,000 – 20,000 cycles
- Microstructure: Tempered Martensite + Bainite
- Heat Treatment: Quenching + Tempering
Why Choose Forged Steel Balls Over Cast Balls?
- Higher impact toughness: ≥12 J/cm² – withstands SAG mill impacts
- No deformation: Maintains spherical shape throughout service life
- No cracking: Forging process eliminates casting defects
- Uniform hardness: Surface to core difference ≤5 HRC
- Long service life: Lower consumption per ton of ore
Raw Material Options
| Grade | Application | Hardness (HRC) |
|---|---|---|
| 45# | General grinding | 55-60 |
| 50Mn/60Mn | Mining, cement | 58-62 |
| 65Mn | High impact | 60-65 |
| B2 | SAG mills | 60-63 |
| B3 | Heavy-duty SAG mills | 62-65 |
Applications
- Mining: Iron ore, copper ore, gold ore, nickel ore
- Semi-autogenous mills (SAG mills) – mill diameter >6m
- Ball mills in mineral processing
- Cement plants: Raw material and finish grinding
- Thermal power plants: Coal pulverizing
Contact us – provide your mill type (SAG or ball mill), diameter, ore type, and target hardness grade for a competitive quotation.
Send Inquiry to This Supplier
You May Also Like
-
High Manganese Steel Mill Liner Mn13Cr2 High Impact Toughness Work Hardening For Ball Mill SAG Mill Mining CementUS$ 1200 - 1500MOQ: 1 Metric Ton
-
Chromium-Molybdenum Alloy Steel Mill Liner Medium/Low Cr-Mo High Wear Resistance High Impact For SAG Mill Ball Mill Mining CementUS$ 1000 - 1800MOQ: 1 Metric Ton
-
Bimetal Mill Liner High Chrome + Carbon Steel Composite High Hardness HRC58-63 2-3x Service Life For Ball Mill SAG Mill MiningUS$ 1800 - 5000MOQ: 1 Metric Ton
-
Crusher Hammer Head High Manganese Steel / CADI / High Chrome Alloy For Hammer Crusher Mining CementNegotiableMOQ: 1 Metric Ton
-
Wear Resistant Steel Castings Customized Parts For Mining Cement Plant Ball Mill Hammer CrusherNegotiableMOQ: 1 Metric Ton
-
High Chrome Cast Grinding Balls Cr 10%-36% High Hardness 58-62HRC Low Breakage For Iron Ore Copper Ore Gold OreUS$ 1000 - 2000MOQ: 34 Metric Tons
-
High Chrome Alloy Cast Steel Grinding Balls Cr 10%-30% HRC58-62 Low Breakage For SAG Mill Ball Mill MiningUS$ 800 - 1200MOQ: 34 Metric Tons
-
Ultra High Chrome Cast Grinding Balls Cr 20%-36% Extreme Hardness 60-65HRC Low Breakage For Ball Mill MiningUS$ 600 - 1200MOQ: 34 Metric Tons
-
Customized Cast Grinding Balls Any Size Cr 1%-30% High Hardness Low Breakage For Ball Mill SAG Mill MiningUS$ 600 - 1200MOQ: 34 Metric Tons
-
Small Diameter Cast Grinding Balls Dia 4.8-40mm Cr 1%-28% High Hardness For Fine Grinding Cement CoalUS$ 600 - 2000MOQ: 34 Metric Tons
