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轴承钢砂
轴承钢砂是用轴承钢冲切下的边角薄片，经淬火、破碎而成。此种尖角砂无缩孔、无疏松、品粒度细、硬度极高，棱角锋利，是目前锯切花岗石最理想的磨粒磨料。根据客户需求，不同的用途分为两组。
A组：硬度>60HRC
用途：锯切花岗石
特征：品粒度细，硬度极高，棱角锋利，耐靡性能好。
B组：硬度<60HRC
用途：金属表面强化处理或除氧化皮工作。
特征：硬度高、韧性好、耐磨性能好、喷砂效率高
铸钢砂粒度分布
mesh | mm | 规格 |
2.5mm | 2.0mm | 1.7mm | 1.4mm | 1.2mm | 1.0mm | 0.7mm | 0.4mm | 0. 3mm | 0.2mm |
7 | 2.80 | all pass | | | | | | | | | |
8 | 2.36 | | all pass | | | | | | | | |
10 | 2.00 | 80%min | | all pass | | | | | | | |
12 | 1.70 | 90%min | 80%min | | all pass | | | | | | |
14 | 1.40 | | 90%min | 80%min | | all pass | | | | | |
16 | 1.18 | | | 90%min | 75%min | | all pass | | | | |
18 | 1.00 | | | | 85%min | 75%min | | all pass | | | |
20 | 0.850 | | | | | | | | | | |
25 | 0.710 | | | | | 85%min | 70%min | | all pass | | |
30 | 0.600 | | | | | | | | | | |
35 | 0.500 | | | | | | | | | | |
40 | 0.425 | | | | | | 80%min | 70%min | | all pass | |
45 | 0.355 | | | | | | | | | | |
50 | 0.300 | | | | | | | 80%min | 65%min | | all pass |
80 | 0.180 | | | | | | | | 75%min | 65%min | |
120 | 0.125 | | | | | | | | | 75%min | 60%min |
200 | 0.075 | | | | | | | | | | 70%min |
325 | 0.045 | | | | | | | | | | |
SAE | G-10 | G-12 | G-14 | G-16 | G-18 | G-25 | G-40 | G-50 | G-80 | G-120 |
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