棕刚玉是以铝矾土、焦碳（无烟煤）为主要原料，在电弧炉内经高温冶炼而成。主要化学成份为AL2O3、TiO2还含有少量的Sio2和Fe2O3等，显微硬度HV1800-2200、韧性比SiC高，用它制成的磨具，适于磨削抗张强度较高的金属，如各种通用钢材、可锻铁、硬青铜等。也可制造高级耐火材料。
段砂尺寸：0-1mm,1-3mm,3-5mm,5-8mm,另定制加工非常规尺寸
棕刚玉化学成分 | |||||||
用途 | 规格 | 主要化学成分% | 磁性物% | ||||
AL2O3 | Fe2O3 | SiO2 | TiO2 | ||||
磨料磨具 | F | 4#-80# | ≥95 | ≤0.3 | ≤1.5 | ≤3.0 | ≤0.05 |
90#-150# | ≥94 | ≤0.03 | |||||
180#-240# | ≥93 | ≤3.5 | ≤0.02 | ||||
p | 8#-80# | ≥95.0 | ≤0.2 | ≤1.2 | ≤3.0 | ≤0.05 | |
100#-150# | ≥94.0 | ≤0.03 | |||||
180#-220# | ≥93.0 | ≤0.3 | ≤1.5 | ≤3.5 | ≤0.02 | ||
W | 1#-63# | ≥92.5 | ≤0.5 | ≤1.8 | ≤4.0 | - | |
耐火材料 | 段砂 | 0-1mm | ≥95 | ≤0.3 | ≤1.5 | ≤3.0 | - |
1-3mm | |||||||
3-5mm | |||||||
5-8mm | |||||||
8-12mm | |||||||
25-0mm | |||||||
10-0mm | |||||||
50-0mm | |||||||
30-0mm | |||||||
细粉 | 180#-0 | ≥94.5 | ≤0.5 | ≤1.5 | ≤3.5 | - | |
200#-0 | |||||||
320#-0 | |||||||
