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Sa-Grade Selection Chart
Map your industry application and coating system to the correct ISO 8501-1 Sa grade and ISO 8503-1 Ry5 profile band — the same chart ABOKE application engineers reference on quote calls.
Awaiting parameters.
Click “Get My Sa-Grade Recommendation” to calculate.
Click “Get My Sa-Grade Recommendation” to calculate.
Recommended Surface Finish
| Ry5 Profile Band | |
|---|---|
| ISO Standard | ISO 8501-1 (cleanliness) + ISO 8503-1 (profile) |
| Recommended Abrasive | |
| Suggested ABOKE Model |
ABOKE machines verify live via the in-chamber roughness sensor (±0.1 µm). PLC log exports support ISO 9001 audit packs.
Get a Quote with This Sa-Grade Spec →
Full ABOKE Sa-Grade Matrix Reference
| Sa Grade | Cleanliness | Ry5 Profile (shot) | Typical Application |
|---|---|---|---|
| Sa1 | Loose scale + paint removed | 23–28 µm | Storage prep only |
| Sa2 | All scale removed, minor shadows | 35–45 µm | Single-coat paint, non-heavy-load |
| Sa2.5 | ≥95% impurity-free | 60–80 µm | Industry default — epoxy, zinc-rich |
| Sa3 | Uniform metallic shine | 85–115 µm | Aerospace, fluoropolymer, galvanizing |
