Key Specifications/Special Features:
Forged grinding steel ball
Size from diameter 20 to 150mm
Chemical composition (%): C 0.75-0.85, SI 0.17-0.35, MN 0.7-0.9 CR 0.4-0.6, AL 0.01-0.06 S/P 0.03 maximum CU 0.2 maximum NI 0.2max
Packing: by steel drums or flexible container bags
Grinding balls are widely used in the ball mill for mines, cement plants, power stations, chemical industries
It has the characters of: no breakage, good wear resistance, no deformation, uniformity of the hardness from surface to core
|75MnCr||0.70-0.85||0.7-0.8||0.17-0.37||0.2-0.7||0.03 max||0.03 max|
|75SiMn||0.70-0.90||0.7-1.2||0.4-0.8||0.25 max||0.03 max||0.03 max|
Endurance Test Times
|Dia 25mm-60mm||Dia 70mm-100mm|
Strict quality control of steel material from BIG STEEL FACTORY GROUP.You know the good grinding balls quality depends on the good raw material.
1.Traditional Hammer Forging: Raw material-Cutting-Heating-Forging-Quenching-Tempering-Testing-Packing
2. Hot Rolling
Quality control for each production shift (4hours/Shift);
Hardness, chemical elements and impact testing after production for each production shift;
SGS –third party testing before each delivery
1. We are a direct manufacturer,located in the largest production base of forged grinding steel ball in China.We are very pleased to offer you the most competitive price.All products with high quality would pass the third party inspection before shipment.
2. The Heat treatment technology is very perfect, especially the tempeing process,which increase the hardness of the forging steel ball and nake the product more wear-resisting.
3. Our forged steel grinding ball has been exported to Japan,Indonesia,Malaysia and many other countries and have got great reputation from our customer at home and abroad.
4. Free Samples Can be Provided.
1. Free samples for your test before orders;
2. Soonest delivery time ;
3. Cooperate with many famours shipping companies,and sent the goods to your port safe and in time;
4. Any feedback after sales would get our soonest reply.
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