THE PROCESS LINE OF PRODUCTION
a.The Material: The high quality Alloy Steel Material
b.Chemcial Elements
Name | C | Mn | Si | Cr | S | P |
50Mn | 0.48-0.56 | 0.70-1.0 | 0.17-0.37 | 0.25 max | 0.035max | 0.035max |
65Mn | 0.60-0.70 | 0.90-1.20 | 0.17-0.37 | 0.25 max | 0.035max | 0.035max |
75MnCr | 0.70-0.85 | 0.7-0.8 | 0.17-0.37 | 0.7-0.9 | 0.03 max | 0.03 max |
40MnCr | 0.45-0.50 | 0.7-1.2 | 0.17-0.37 | 0.9-1.1 | 0.03 max | 0.03 max |
c.Mechanical Properties
Name | Impact Test AK.J/cm2 | Endurance Test Times (5m) | Dia 25mm-60mm | Dia 70mm-100mm | ||
Surface | Core | Surface | Core | |||
50Mn | ≥12 | ≥10000 | ≥56 | ≥50 | ≥55 | ≥50 |
65Mn | ≥15 | ≥12000 | ≥60 | ≥50 | ≥55 | ≥50 |
75MnCr | ≥17 | ≥12000 | ≥60 | ≥52 | ≥60 | ≥50 |
40MnCr | ≥16 | ≥12000 | ≥60 | ≥50 | ≥60 | ≥50 |
d.Specification and Hardness of Grinding Ball
Nominal diameter (mm) | Diameteical tolerance (mm) | Weight of Single of forging ball in average | Number of piece of One ton forging ball in average | Surface hardness | Impact toughness |
DIA 20 DIA 25 DIA 30 DIA 40 DIA 50 | +2 -1 | 32 64 110 263 513 | 31250 15625 9090 3802 1949 | 60-65 | ≥12 |
DIA 60 DIA 70 DIA 80 DIA 90 DIA 100 | +3 -2 | 888 1410 2104 2996 4110 | 1126 709 475 333 243 | ||
DIA 110 DIA 120 DIA 130 | +4 -2 | 5457 7102 9030 | 182 140 110 | ||
DIA 140 DIA 150 | +4 -3 | 11278 13871 | 88 72 |
We sincerelywelcome customers from both at home and abroad to come to negotiate business with us. We are committed to with you to establish long-term cooperation.
Our serious promise: supplying you with high quality products, competitive prices, timely delivery, and satisfactory service. We are always insisting on the theory of "Quality first,Credit goal,and Mutual profits". Let's build a better future.
