Compatibility Rating
At 20°C (68°F)
Excellent
Excellent resistance - recommended for continuous use
At 50°C (122°F)
Fair
Limited resistance - short-term exposure only
Why is SS 304 resistant to Hydrazine?
SS 304 shows excellent resistance to Hydrazine due to its chromium content (18%) forming a passive oxide layer resistant to many corrosive environments.
⚠️ 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 Hydrazine
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | A | A |
| LDPE | A | NR |
| PP | A | A |
| PTFE | A | NR |
| PVDF | A | C |
| FEP | A | NR |
| ECTFE/ETFE | NR | NR |
| EPDM | A | NR |
| Viton (FPM) | C | D |
| NBR | D | D |
| Silicone | NR | NR |
| SS 316 | A | C |
| SS 304 | A | C |
| Aluminium | A | NR |
| PVC Rigid | A | NR |
| PVC Flexible | NR | NR |
| PMP | NR | NR |
| Polystyrene | NR | NR |
| SAN | NR | NR |
| Polycarbonate | D | D |
| PETG | NR | NR |
| Acetal (POM) | B | NR |
| Nylon (PA) | D | D |
| Polysulfone | NR | NR |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
🌡️ Temperature Note
Performance degrades significantly at higher temperatures — rated Excellent at 20°C but only Fair at 50°C. For elevated temperatures, consider a more resistant material. Max service temp: 800°C.
🔄 Better Alternative?
Consider: SS 316 for chloride environments. View all materials for Hydrazine →
FAQ
Is Stainless Steel 304 resistant to Hydrazine?
Stainless Steel 304 has Excellent (A) resistance to Hydrazine at 20°C. Excellent resistance - recommended for continuous use.