Compatibility Rating
At 20°C (68°F)
Poor
Not recommended - significant degradation expected
At 50°C (122°F)
Poor
Not recommended - significant degradation expected
Why is SS 304 rated this way to Aluminum Chloride?
SS 304 is not recommended for use with Aluminum Chloride. Significant degradation or failure is expected.
⚠️ When NOT to use SS 304
Avoid using Stainless Steel 304 with chloride-rich environments (seawater, HCl) which cause pitting corrosion. Use 316 grade for chloride exposure.
Comparison Table — All Materials for Aluminum Chloride
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | A | A |
| LDPE | A | B |
| PP | A | A |
| PTFE | A | A |
| PVDF | A | A |
| FEP | A | A |
| ECTFE/ETFE | B | B |
| EPDM | A | NR |
| Viton (FPM) | A | NR |
| NBR | A | A |
| Silicone | NR | NR |
| SS 316 | C | D |
| SS 304 | D | D |
| Aluminium | D | D |
| PVC Rigid | A | A |
| PVC Flexible | NR | NR |
| PMP | A | A |
| Polystyrene | A | A |
| SAN | A | A |
| Polycarbonate | A | NR |
| PETG | B | B |
| Acetal (POM) | C | D |
| Nylon (PA) | A | NR |
| Polysulfone | NR | NR |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
🌡️ Temperature Note
Maximum service temperature for this material is 800°C. Always verify compatibility at your specific operating conditions.
🔄 Better Alternative?
Consider: SS 316 for chloride environments. View all materials for Aluminum Chloride →
FAQ
Is Stainless Steel 304 resistant to Aluminum Chloride?
Stainless Steel 304 has Poor (D) resistance to Aluminum Chloride at 20°C. Not recommended - significant degradation expected.
Can I store Aluminum Chloride in Stainless Steel 304 containers?
Use caution - Stainless Steel 304 is rated D (Poor) for Aluminum Chloride.