Loading Port:China Main Port
Payment Terms:TT or LC
Min Order Qty:25M.T. m.t.
Supply Capability:150,000M.T. m.t./month
High Chrome Alloy Casting Grinding Ball with HRC60-65 Dia 1’’-Dia6’’(ISO9001:2008)
1）Specification for High Chrome Alloy Casting Grinding Ball with HRC60-65 Dia 1’’-Dia6’’
Size: 1''-6''(25mm-130mm)
Hardness: 60HRC-65HRC
Breakage Rate<0.5%
Impact Toughness>12J/cm2
Certification: ISO9001:2008, SGS, etc
2）Chemical Composition for High Chrome Alloy Casting Grinding Ball with HRC60-65 Dia 1’’-Dia6’’
Grade | C | Mn | Si | Cr | S | P |
50Mn | 0.48-0.56 | 0.70-1.0 | 0.17-0.37 | 0.25max | 0.035max | 0.035max |
60Mn | 0.57-0.65 | 0.70-1.0 | 0.17-0.37 | 0.25max | 0.035max | 0.035max |
65Mn | 0.6-0.7 | 0.9-1.2 | 0.17-0.37 | 0.25max | 0.035max | 0.035max |
75MnCr | 0.70-0.85 | 0.7-0.8 | 0.17-0.37 | 0.2-0.7 | 0.03max | 0.03max |
Rail IronⅠ | 0.5-0.65 | 0.60-1.0 | 0.15-0.37 | 0.25max | 0.04max | 0.04max |
Rail IronⅡ | 0.60-0.8 | 0.90-1.2 | 0.20-0.40 | 0.20-0.8 | 0.07max | 0.03max |
3）Weight and Microstructure for High Chrome Alloy Casting Grinding Ball with HRC60-65 Dia 1’’-Dia6’’
Norminal Diameter | Diametrical Tolerance(mm) | Approx Weight of Single Ball(kg) | Average Number of One MT | Microstructure |
25mm/1'' | +1.5,-0.5 | 0.064 | 15625 | M+B+C (M-Martensite;B-Bainitic;C-Carbide) |
30mm/1.25'' | +1.5,-0.5 | 0.11 | 9090 | |
40mm/1.5'' | +2.0,-1.0 | 0.26 | 3846 | |
50mm/2'' | +2.0,-1.0 | 0.51 | 1961 | |
60mm/2.5'' | +3.0,-2.0 | 0.89 | 1124 | |
70mm/2.75'' | +3.0,-2.0 | 1.4 | 714 | |
80mm/3.25'' | +3.0,-2.0 | 2.1 | 476 | |
90mm/3.5'' | +3.0,-2.0 | 3 | 333 | |
100mm/4'' | +4.0,-3.0 | 4.1 | 244 | |
110mm/4.5'' | +4.0,-3.0 | 5.47 | 283 | |
120mm/4.75 | +4.0,-3.0 | 7.1 | 141 | |
130mm/5'' | +4.0,-3.0 | 9.02 | 111 |
4) Application for High Chrome Alloy Casting Grinding Ball with HRC60-65 Dia 1’’-Dia6’’
Mine
Cement Plant
Power Station
Chemical Industry
etc
5) Production Process for High Chrome Alloy Casting Grinding Ball with HRC60-65 Dia 1’’-Dia6’’
Testing of the raw material—Smelting—Test during smalting—Adjust chenical compostion—Moulding—Test alter smlting — Pass/Abandonment — Grinding — Surface Test — Quenching — Tempering—HardnessTesting—Packed and storage—Testing the finished products — In Stock
6) Packing for High Chrome Alloy Casting Grinding Ball with HRC60-65 Dia 1’’-Dia6’’
