Forged Steel Ball
Forged Steel Ball: 1)Diameter:25-130 mm 2)Grinding endurable 3)Hardness: 52-65HRC 4)Material:Forged Steel
Forged Steel Ball:
1.Material 75SiMn,wear -resistant alloy2.Diameter 25mm-130mm
3.Characteristic High hardness, Grinding endurable ,None
out-of-round, Low percentage of damage, High total mill efficiency.4.Apply Realm: Cement plan, mine , Mill tailings ,Thermal power generation, Chemical industry.
5.Packing Jumbo bag or Iron drum
Classification Chemical Composition
| Name | Material | C | Mn | Si | Cr | S | P |
| zw-5 | 75MnCr | 0.7-0.9 | 0.7-1.2 | 0.4-0.8 | ≤0.25 | ≤0.03 | ≤0.03 |
| zw-6 | wear-resistant alloy | 0.5-0.65 | 0.7-1.0 | 1.4-1.8 | 0.9-1.2 | ≤0.03 | ≤0.03 |
Mechanical Property
| Name | Material | Impact Test (AK.J/cm2) | Endurance test times(5m/time) | Surface Hardness (HRC) | Core Hardness (HRC) | Breakage |
| ZW-5 | 75SiMn | ≥16 | ≥12000 | ≥60 | ≥54 | <1% |
| ZW-6 | wear- resistant alloy | ≥17 | ≥12000 | ≥60 | ≥52 | <1% |
Substance And Metallurgical Structure
| Nominal Diameters (mm) | Diameter Tolerance (mm) | Approx Weight Per Ball (kg) | Average Number Per MT | Metallurgical Structure |
| 25 | +1.5, -0.5 | 0.064 | 15625 | M +B+C
(M:Martensite;B:Bainitic;C:Carbide) |
| 30 | +1.5, -0.5 | 0.11 | 9090 | |
| 40 | +2.0, -1.0 | 0.26 | 3846 | |
| 50 | +2.0, -1.0 | 0.51 | 1961 | |
| 60 | +3.2, -2.0 | 0.89 | 1124 | |
| 70 | +3.0, -2.0 | 1.4 | 714 | |
| 80 | +3.2, -2.0 | 2.1 | 476 | |
| 90 | +3.2, -2.0 | 3 | 333 | |
| 100 | +4.0,-3.0 | 4.1 | 244 | |
| 110 | +4.0,-3.0 | 5.47 | 283 | |
| 120 | +4.0,-3.0 | 7.1 | 141 | |
| 130 | +4.0,-3.0 | 9.02 | 111 |
Forged Steel Ball
