- Abrasives[1]
- Cast & Forged[6]
- Tool Parts[1]
- Contact Person : Mr. Wang Xiangyou
- Company Name : Zhangqiu Huanai Grinding Ball Co., Ltd.
- Tel : 86-531-83454081
- Fax : 86-531-83454130
- Address : Shandong,Jinan,9# South and east of Mingzhu district. Zhangqiu City
- Country/Region : China
- Zip : 250200
forged steel alloy mill grinding ball
Related Product Searches:forged steel alloy mill grinding ball,High Quality,mill grinding ball, forged ball for ball mill,HN-75MnCr
forged steel alloy mill grinding ball
High hardness; No breakage; Even wearing; Good wear resistanceSize:Dia20mm-150mmHRC: 58-65
Applied fields: a) Mines b) Cement plants c) Power stations d) Chemical industry
A Chemcial Elements
1.
Name | C | Mn | Si | Cr | S | P |
HN-50MN | 0.48-0.56 | 0.70-1.0 | 0.17-0.37 | 0.25 max | 0.035max | 0.035max |
HN-65MN | 0.60-0.70 | 0.90-1.20 | 0.17-0.37 | 0.25 max | 0.035max | 0.035max |
HN-75MnCr | 0.70-0.85 | 0.7-0.8 | 0.17-0.37 | 0.7-0.9 | 0.03 max | 0.03 max |
HN-40MNCr | 0.45-0.50 | 0.7-1.2 | 0.17-0.37 | 0.9-1.1 | 0.03 max | 0.03 max |
2.
Name | Impact Test AK.J/cm2 | Endurance Test Times (5m) | Dia 25mm-60mm | Dia 70mm-100mm | ||
Surface | Core | Surface | Core | |||
HN-50MN | ≥12 | ≥10000 | ≥56 | ≥50 | ≥55 | ≥50 |
HN-65MN | ≥15 | ≥12000 | ≥60 | ≥50 | ≥55 | ≥50 |
HN-75MnCr | ≥17 | ≥12000 | ≥60 | ≥52 | ≥60 | ≥50 |
HN-40MNCr | ≥16 | ≥12000 | ≥60 | ≥50 | ≥60 | ≥50 |
B 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 | 55-65 | ≥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 |
forged steel alloy mill grinding ball