RF ABRASIVE CO.,LTD
Focus on Blasting Abrasive 20 years
Service Hotline：
RF ABRASIVE CO.,LTD
Focus on Blasting Abrasive 20 years
contact：Colin Han
email：sales@rfabrasive.com
phone：+8618553321311
address：Wenchang Lake Economic Development Zone, Zibo City, Shandong Province, China
Product Features:
● Sharp edges
Steel Grit：Angular steel grit, a type of cast steel, is produced by crushing oversized particles that have undergone special heat treatment. Specific crusher and controlled process to obtain angular and efficient abrasive blasting, steel grit is the ideal cleaning, rust removal and cleaning of high-quality blasting media.
According to the different requirements of surface cleaning, the hardness is divided into three kinds of sandblasting media with GP GL GH hardness
Chemical composition of steel grit:
| Name | Steel Grit | |
| Chemical composition | （C） | 0.85~1.20% |
| （Mn） | 0.35~1.20% | |
| （Si） | 0.40~1.20% | |
| （S） | ≤0.05% | |
| （P） | ≤0.05% | |
| Average hardness (500g load) |
40~50HRC (377~509HV) Special: 52~56HRC / 56~60HRC |
|
| Hardness deviation | ±3.0HRC or ±40HV | |
| Metallographic structure | Uniform tempered martensite or tempered troostite + dispersed carbide | |
| Minimum density (alcohol displacement method) |
7.4g/cm³ | |
Steel Grit size distribution：
| Mesh number |
mm | 2.5 | 2.0 | 1.7 | 1.4 | 1.2 | 1.0 | 0.7 | 0.4 | 0.3 | 0.2 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |||||||
| 13 | 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 | 80%min | |||||||||
| 40 | 0.425 | 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 | |
Steel grit use:
steel grit abrasive is used for surface treatment of steel structure and steel grit before painting, such as sand removal and rust removal, to remove oxide skin and improve roughness. Also used for descaling and sandblasting applications.
