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Casting Grinding Balls
Brand ZW
Product origin Shandong, China
Delivery time 7 days
Supply capacity 6000 tons per month
Chromium-based cast steel balls are widely used in powder preparation and ultra-fine deep processing in cement building materials, metal mines, coal slurry thermal power, chemical engineering, ceramic coatings, light industrial papermaking, magnetic materials and other industries.
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The cast grinding ball has good toughness, no loss of roundness, low wear and low breakage rate; the hardness of high chromium balls can reach HRC56-62; the hardness of medium chromium balls can reach HRC47-55; the hardness of low chromium balls can reach HRC45-52, the minimum production ø30mm, the maximum can produce ø130mm, widely used in various dry mills.
Cast steel balls are divided into ultra-high chromium cast balls, high chromium cast balls, medium chromium cast balls, low chromium cast balls and chromium-free cast balls
The chromium content of high chromium balls is greater than or equal to 10.0%. The carbon content is between 1.80% and 3.20%. According to national standards, the hardness of high chromium balls must not be less than 58hrc, and the impact value should be greater than or equal to 3.0j/cm2.
Medium chromium balls are specified with a chromium content ranging from 3.0% to 7.0%, and a carbon content between 1.80% and 3.20%. Its impact value should not be less than 2.0j/cm2.
Generally speaking, low chromium balls contain 0.5% to 2.5% chromium and 1.80% to 3.20% carbon. Therefore, according to the national standard, the hardness of the low chromium ball should be no less than 45hrc, and the impact value should be no less than 1.5j/cm2.
Name |
Material | Chemical elements | Hardness | |||||
C | Si | Mn | S | P | Cr | HRC
| ||
Cast iron ball | Special cr1 | 2.0-3.0 | <1.0 | 0.5-2.0 | ≤0.06 | ≤0.06 | >20 | 58-64 |
Special cr2 | 2.0-3.0 | <1.0 | 0.5-2.0 | ≤0.06 | ≤0.06 | >15 | 58-64 | |
High Cr | 2.0-3.2 | <1.0 | 0.5-2.5 | ≤0.06 | ≤0.06 | >10 | 58-62 | |
Medium Cr | 2.0-3.2 | <1.0 | 0.5-2.5 | ≤0.06 | ≤0.06 | ≥5 | 48-55 | |
Low Cr | 2.2-3.4 | ≤1.2 | 0.5-1.5 | ≤0.06 | ≤0.06 | 1.0-1.5 | 42-46 |