1" grinding steel ball for mining Dia.:25-200mm Hardness:58-67HRC Izod impact strength:12-35J/M2 Breakage:real0.1%
grinding steel balls
1.Dia.:20mm-200mm
2.Surface hardness: more than 60HRC, Core hardness: more than 55HRC.
3.Breakage: Less than 1%
4.Impact toughness: More than 12J/cm2
5.Density: 7.8-7.85g/cm3
6.Impact to broken (times): more than 10000
7.Abrasion:
non-ferrous metal: 0.4KG-0.7KG, ferrous metal: 055KG-0.8KG.( The abrasion just for reference, the exact abrasion depends on the specific mine ore, the temperature, the ball mill and other conditions.)
8. Package: Woven bag: 1Ton/bag; Iron drum: 800KG/drum
9..Chemical composition:
C:0.77%, SI:0.21%, Mn:0.74%,P: 0.011%, S: 0.013%,Ni: 0.02%, Cr: 0.31%.
Cu: 0.08%, w: 0.009%, Mo: 0.002%, V: 0.002%, Ti: 0.002%, Al: 0.012%, Als: 0.009%, B: 0.0004%, Nb: 0.002%,Ceq: 0.96%
10. Certificates we obtaion:
11.USE:
12.specification
Nominal Diameter | Theoretical diameter | Theoretical Weight | Surface hardness | Centre hardness |
(mm) | (mm) | (kg/per piece) | (HRC) | (HRC) |
20 | 20.8 | 0.037 | 62-65 | 62-65 |
25 | 28.0 | 0.072 | ||
30 | 31.2 | 0.125 | ||
35 | 36.4 | 0.198 | 62-65 | 61-64 |
40 | 41.6 | 0.296 | ||
45 | 46.8 | 0.421 | ||
50 | 52.0 | 0.578 | ||
55 | 57.2 | 0.769 | ||
60 | 62.4 | 0.999 | ||
65 | 67.6 | 1.270 | 60-63 | 59-62 |
70 | 72.8 | 1.586 | ||
75 | 78.0 | 1.951 | ||
80 | 83.2 | 2.367 | ||
85 | 87 | 2.5243 | 59-64 | 59-64 |
90 | 92 | 2.9964 | ||
95 | 97 | 3.5241 | ||
100 | 102 | 4.1103 | ||
105 | 107 | 4.7582 | ||
110 | 112 | 5.4710 | ||
115 | 118 | 6.2512 | 58-63 | 58-63 |
120 | 122 | 7.1026 | ||
125 | 127 | 8.0279 | ||
130 | 133 | 9.0303 | 58-63 | 57-63 |
135 | 138 | 10.1076 | ||
140 | 143 | 11.2728 | ||
145 | 148 | 12.5243 | ||
150 | 153 | 13.8651 |
1" grinding steel ball for mining
