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Acetaldehyde
Data is at 70°F (21°C) unless otherwise noted in the chemical name.
Metal
13 materials| Material | Rating | Meaning |
|---|---|---|
| Aluminum | B | Good — minor effect, generally suitable |
| Carbon Steel | D | Not recommended — unsatisfactory / do not use |
| Cast/Ductile Iron | C | Fair to Poor — moderate/severe effect, evaluate carefully |
| 304 Stainless Steel | A | Excellent — fully compatible |
| 316 Stainless Steel | A | Excellent — fully compatible |
| Hastelloy C | A | Excellent — fully compatible |
| Brass | C | Fair to Poor — moderate/severe effect, evaluate carefully |
| Alloy 20 | C | Fair to Poor — moderate/severe effect, evaluate carefully |
| Alloy 40 (Monel) | A | Excellent — fully compatible |
| Titanium | — | No data — the source publishes no rating for this pair. Not a compatibility claim; verify independently. |
| Duplex 2205, Cd4MCu | A | Excellent — fully compatible |
| XM-19 Spring Steel | D | Not recommended — unsatisfactory / do not use |
| 410 Stainless Steel | C | Fair to Poor — moderate/severe effect, evaluate carefully |
Legend:AExcellentBGoodCFair to PoorDNot recommended—No data
Important Engineering Disclaimer:
Compatibility data is a preliminary screening guide only. Verify against actual concentration, operating temperature and pressure, fluid impurities, velocity/erosion, corrosion allowance, gasket seating stress, mechanical seal arrangement, vendor recommendations, applicable code, project specification, and the current Safety Data Sheet before engineering use. Ratings reflect Graco Chemical Compatibility Guide (Updated 10/29/2024) and are not a current SDS/GHS classification.