Description
Advantages:
⍟ Extended service life – slower wear rate due to lower hardness
⍟ Cost-efficiency – reduced consumption and less frequent replenishment
⍟ Lower dust emission during operation – less brittle than GH grade
⍟ Consistent processing quality – maintains correct grain size longer
⍟ Ideal for gentle cleaning – does not damage soft surfaces
⍟ Reduced equipment load – decreases wear on turbines and blasting chambers
PHYSICAL AND CHEMICAL PROPERTIES
◯ Shape – Solid, angular particles
◯ Hardness – 50–61 HRC
◯ Density – 7.0 g/cm³
◯ Color – Blue
◯ Odor – None
◯ Odor threshold – Not applicable
◯ pH – Not applicable
◯ Flammability/explosiveness limits – Not applicable
◯ Solubility – Insoluble in water
◯ Explosive properties – Non-explosive
◯ Chemical composition according to SAE J827:
| Fe (%) | C (%) | Mn (%) | Si (%) | S (%) ≤ | P (%) ≤ |
|---|---|---|---|---|---|
| 96.5–98.0 | 0.8–1.2 | 0.6–1.2 | 0.5–1.0 | 0.05 | 0.05 |
◯ Particle Size Characteristics
| Standard Sieve Opening Size (mm) | G16 | G18 | G25 | G40 | G50 | G80 |
|---|---|---|---|---|---|---|
| 4.75 | ||||||
| 4.00 | ||||||
| 3.35 | ||||||
| 2.80 | ||||||
| 2.36 | ||||||
| 2.00 | ||||||
| 1.70 | 0 | |||||
| 1.40 | 0 | |||||
| 1.18 | >75 | 0 | ||||
| 1.00 | >85 | >75 | 0 | |||
| 0.85 | ||||||
| 0.71 | >85 | >70 | 0 | |||
| 0.60 | ||||||
| 0.50 | ||||||
| 0.43 | >80 | >70 | 0 | |||
| 0.36 | ||||||
| 0.30 | >80 | >65 | ||||
| 0.18 | >75 | >65 | ||||
| 0.13 | >75 |
Explanation:
- The numbers in the table indicate the maximum or minimum allowable percentage for a given abrasive that passes through a specific sieve opening.
- Symbols such as “>90” or “>85” indicate that more than 90% or 85% of the abrasive should be smaller than the sieve opening.
