铸造铬矿砂
certificate of analysis | |||||
model | |||||
afs 25-30 | afs 34-41 | afs 39-46 | afs44-51 | ||
element | reported as | content | content | ||
cahromium oxide | cr2o3 | 46.77% | 46.94% | 47.09% | 46.37% |
aluminium oxide | al2o3 | 14.36% | 14.34% | 14.50% | 13.35% |
silicon dioxide | sio2 | 0.53% | 0.60% | 0.68% | 0.85% |
calcium oxide | cao | 0.10% | 0.09% | 0.10% | 0.07% |
iron oxide | feo | 25.06% | 24.98% | 24.96% | 25.98% |
magnesium oxide | mgo | 9.74% | 9.81% | 9.88% | 9.56% |
cr/fe ratio | 1.65:1 | 1.68:1 | 1.68:1 | 1.57:1 | |
size grading | 27.54 | 37.78 | 43.3 | 46.41 | |
20mesh | 0.52 | 0.48 | 0.24 | 0.07 | |
30mesh | 38.79 | 20.49 | 8.05 | 4.38 | |
40mesh | 49.52 | 34.55 | 26.04 | 21.22 | |
50mesh | 8.94 | 21.74 | 29.38 | 33.15 | |
70mesh | 1.75 | 12.7 | 21.22 | 23.53 | |
100mesh | 0.35 | 7.05 | 12.15 | 12.58 | |
140mesh | 0.08 | 2.5 | 2.77 | 3.97 | |
20mesh | 0.02 | 0.41 | 0.13 | 0.67 | |
270mesh | 0.02 | 0.07 | 0.01 | 0.06 | |
-270mesh | 0.01 | 0.02 | 0 | 0.05 | |
ph | 7.5 | 7.77 | 7.9 | 6.76 |
"39-46 铬矿砂 铸造耐火材料 铸造材料砂铸专用"的铬含量≥为47.09%(%),Al2O314.5%是FeO24.96%,产地为南非