Steel Ball Suppliers High-Quality Products
Size: 20mm-150mm
Material: B2, B3, B6, 45#, 40Cr, 42CrMo, 65MN, 60MN,
Uniform Hardness;
High Wear Resistance;
Low Breakage Rate;
Without loss of round;
High impact toughness;
breakage rate: ＜1%
Annual production is over 100.000tons;
steel Ball Suppliers with High-Quality Products, the raw materials are selected from high quality special steel produced by large and well-known national steel mills, and the raw materials are strictly tested for quality, such as hardness, raw material composition, ultrasonic inspection, etc.
Our company have professional and technical personnel and quality control team, the main testing equipment has the ultrasonic flaw detector, Germany imports spectrum analyzer, metal cutting core-pulling machine, metallographic microscope, rockwell hardness tester, impact tester, drop test machine, hand-held infrared thermometer, vernier caliper, etc., quality control and inspection of steel ball.
Chemical Composition of Forged Grinding Ball:
Materials | C% | Si% | Mn% | P% | S% | Cr% |
B2 | 0.70-0.85 | 0.17-0.37 | 0.70-1.00 | ≤0.035 | ≤0.035 | 0.4-0.6 |
B2-1 | 0.55-0.70 | 0.15-0.30 | 0.65-0.85 | ≤0.020 | ≤0.020 | 0.70-1.10 |
High Carbon B2 | 0.85-1.10 | 0.15-0.45 | 0.40-1.20 | ≤0.035 | ≤0.035 | 0.20-1.10 |
B3 | 0.58-0.66 | 1.70-1.90 | 0.68-0.80 | ≤0.030 | ≤0.030 | 0.78-0.90 |
45# | 0.42-0.50 | 0.17-0.37 | 0.5-0.8 | ≤0.035 | ≤0.035 | 0.25max |
B4 | 0.65-0.75 | 1.20-1.40 | 0.50-0.70 | ≤0.025 | ≤0.025 | 0.85-1.00 |
B6 | 0.75-0.90 | 0.17-0.37 | 0.8-1.02 | ≤0.035 | ≤0.035 | 0.88-0.98 |
B6-1 | 0.82-0.90 | 0.15-0.35 | 0.90-1.05 | ≤0.020 | ≤0.020 | 0.88-0.98 |
BU | 0.95-1.05 | 0.15-0.35 | 0.95-1.05 | ≤0.025 | ≤0.025 | 0.45-0.55 |
1090 | 0.90-1.10 | 0.17-0.37 | 0.60-0.90 | ≤0.025 | ≤0.025 | ≤0.025 |
42CrMo | 0.38-0.45 | 0.20-0.40 | 0.50-0.80 | ≤0.035 | ≤0.035 | 0.90-1.20 |
40Cr | 0.37-0.45 | 0.20-0.40 | 0.50-0.80 | ≤0.035 | ≤0.035 | 0.80-1.10 |
65MN | 0.62-0.70 | 0.17-0.37 | 0.90-1.20 | ≤0.035 | ≤0.035 | ≤0.25 |
60MN | 0.57-0.65 | 0.17-0.37 | 0.70-1.00 | ≤0.035 | ≤0.035 | ≤0.25 |
50MN | 0.48-0.56 | 0.17-0.37 | 0.70-1.00 | ≤0.035 | ≤0.035 | ≤0.25 |
Specification of Grinding Steel Ball:
Diameter(mm) | Diameter Tolerance(mm) | Surface Hardness(HRC) | Impact Toughness(j/cm2) |
Φ20 | +2， —1 | ＞60HRC | ≥12 |
Φ25 | |||
Φ30 | |||
Φ40 | |||
Φ50 | |||
Φ60 | +3， —2 | ||
Φ70 | |||
Φ80 | |||
Φ90 | |||
Φ100 | +4， —2 | ||
Φ110 | |||
Φ120 | ＞58HRC | ||
Φ130 | |||
Φ140 | +4， —3 | ＞55HRC | |
Φ150 |
Quality traceability management is implemented in the production process. Each order has a corresponding traceability number. According to the number, the whole process information of raw material suppliers, process cards, production equipment, production personnel, quality control personnel and so on can be queried.
The export products have passed SGS inspection, BV testing, etc., the pursuit of 100% qualified quality as the goal.
If the customer needs a third party to reinspect the inspection results, our company can assist in handling the international SGS (the most authoritative international inspection organization) inspection.
We are a professional manufacturer of grinding steel balls, free samples can be supply for your inspection and testing, welcome to visit the factory at any time, looking forward to cooperating with you.
