46% 南非铬砂
铬铁矿是南非天然铬铁矿破碎筛后的产物，其主要化学成分为Cr2O3。砂体热容稳定，导热系数高。它不仅非常接近熔融金属。良好的抗碱炉渣的性能不受氧化铁等化学反应，同时具有固相燃烧的特点，可以防止熔融金属的穿透。本产品具有抗熔融性、耐火性、耐高温性和改善性。高温摩擦系数高，降低磨损，明显改善热腐蚀等。铬氧化物含量高，质量稳定，性能优异。规格:本公司产品为南非进口产品，主要性能指标为:用途:适用于铸造涂料、耐火材料、汽车刹车片、高性能陶瓷材料、陶瓷、玻璃着色剂、摩擦材料、化工、冶金铸件等。
国内常规粒度：20-70目，40-70目，50-100目、70-140目，200目，325目
出口常规粒度：AFS35-40 AFS40-45 AFS45-50 AFS50-55 AFS55-60 AFS60-65
化学成分/物理特性
|
Cr2O3 |
≥46.0% |
|
SiO2 |
≤1.0% |
|
FeO |
≤26.5% |
|
CaO |
≤0.30% |
|
MgO |
≤10.0% |
|
Al2O3 |
≤15.5% |
|
P |
≤0.003% |
|
S |
≤0.003% |
|
Cr/Fe |
|
|
堆积密度 |
|
|
颜色 |
亮黑色 |
|
PH值 |
7-9 |
|
烧结温度 |
> 1,800°C |
|
熔点 |
2,180°C |
包装：1mt 吨包
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