Compatibility Rating
📊 Note: Potassium Hydroxide resistance varies by concentration. Data available for: 1 %, 10 %, 30 %, 50 %. Search for specific concentrations →
Why is SS 316 resistant to Potassium Hydroxide?
SS 316 shows excellent resistance to Potassium Hydroxide due to its molybdenum content providing superior resistance to chlorides and corrosive chemicals compared to 304.
⚠️ When NOT to use SS 316
Avoid using Stainless Steel 316 with hydrochloric acid, hot sulfuric acid, and reducing environments. Best general-purpose stainless steel for chemical exposure.
Comparison Table — All Materials for Potassium Hydroxide
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | A | A |
| LDPE | A | A |
| PP | A | A |
| PTFE | A | A |
| PVDF | A | A |
| FEP | A | A |
| ECTFE/ETFE | A | A |
| EPDM | A | NR |
| Viton (FPM) | A | C |
| NBR | C | C |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | D | D |
| PVC Rigid | A | A |
| PVC Flexible | NR | NR |
| PMP | A | A |
| Polystyrene | B | B |
| SAN | NR | NR |
| Polycarbonate | C | D |
| PETG | D | D |
| Acetal (POM) | A | A |
| Nylon (PA) | A | NR |
| Polysulfone | A | A |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
🌡️ Temperature Note
Good resistance at both 20°C and 50°C. Maximum service temperature for this material is 800°C — above this, degradation risk increases significantly.
🔄 Better Alternative?
Consider: Hastelloy or titanium for extreme corrosion. View all materials for Potassium Hydroxide →
FAQ
Is Stainless Steel 316 resistant to Potassium Hydroxide?
Stainless Steel 316 has Excellent (A) resistance to Potassium Hydroxide at 20°C.
Can I store Potassium Hydroxide in Stainless Steel 316?
Yes, Stainless Steel 316 is rated A for Potassium Hydroxide.
📊 Note: Potassium Hydroxide resistance varies by concentration. Data available for: 1 %, 10 %, 30 %, 50 %. Search for specific concentrations →