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Product Description: Casting ball is widely used in cement, metal mining, power plant and chemical industry etc.. The hardness reaches up to 50HRC(the surface and inner hardness tolerance within 2HRC unit), which makes the wear-resisting property much better than forged ball, in addition, the distribution of the hardness gradient is average. The property- low wear rate, good toughness and less breakage, prolongs its life, improves the productivity of the ball mill, and lowers user’s cost. Our quality is accord with GBT17445-2009 China national standard.
Processing Technique
Intermediate frequency furnace smelting high-quality steel scraps and mix chromium based on requirement.
Constant temperature casting process ensuring the quality, no solid nonmetallic impurity, no pore, no mal-roundness etc.
Annealing process changing the internal organizational structure, lowering the breakage, and improving the performance.
After the Pre-furnace test, semi-finished products and finished products inspection was done by advanced spectrometer and durometer imported from Germany.
Chemical Elements
Name
| Chemical Elements (%) | |||||||
C | Si | Mn | Cr | Mo | Cu | P | S | |
Medium Cr Balls | 2.0-3.3 | ≤1.2 | 0.3-1.5 | 3-6 | 0-1.0 | 0-1.2 | ≤0.1 | ≤0.06 |
Physical Property & Microstructure
Name | HRC | Ak(J/cm2) | Microstructure | Times of Falling Balls | |
Medium Cr Balls | ≥47 | ≥3.0 | P+C | ≤Φ80 | ≥15000 |
≥Φ80 | ≥10000 | ||||
P-Pearlite C-Carbide | |||||
Size & Weight
Size(mm) | Weight(kg/pc) | Quantity(pc/t) | Size(mm) | Weight(kg/pc) | Quantity(pc/t) | |
Φ30 | 0.11 | 9091 | Φ90 | 2.90 | 345 | |
Φ40 | 0.25 | 3891 | Φ100 | 4.00 | 250 | |
Φ50 | 0.50 | 2000 | Φ110 | 5.30 | 188 | |
Φ60 | 0.86 | 1153 | Φ120 | 6.80 | 147 | |
Φ70 | 1.37 | 729 | Φ130 | 7.70 | 129 | |
Φ80 | 2.05 | 487 | Φ140 | 8.74 | 114 |
TEL:+86-18766236970
E-mail:info@brjchina.com
Address: 150-27 Babao Industrial Park, Lulou Town, Pei County, Xuzhou, China
Medium chrome alloy casting ball