牌 号 (Designation) | 代 号 Code | 粒 度 Grain Size | 活性镁
不小于,% Reactive Metal | 筛网孔径（μ m）Mesh Dia | 不大于,% Grain Size | 一号镁粉
1﹟Magnesium Powder | FM1 | + 500 | 0.3 | 98.5 | + 450 | 2 | + 250 | 8 | 二号镁粉
2﹟Magnesium Powder | FM2 | + 450 | 0.3 | 98.5 | + 315 | 8 | - 180 | 12 | 三号镁粉
31﹟Magnesium Powder | FM3 | + 450 | 0.3 | 98.5 | + 250 | 8 | - 140 | 12 | 四号镁粉
4﹟Magnesium Powder | FM4 | + 250 | 0.3 | 98.5 | + 180 | 6 | - 100 | 12 | 五号镁粉
5﹟Magnesium Powder | FM5 | + 160 | 0.3 | 98.5 |
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