For Push-In Pneumatic Fittings in A4 Stainless Steel, the controlling decisions are corrosion, strength and service temperature. This guide summarizes those three for A4 Stainless Steel Push-In Pneumatic Fittings and lists every size we supply.
Why Choose A4 Stainless Steel for Push-In Pneumatic Fittings
Specified for marine, coastal and chemical applications. For push-in pneumatic fittings, this matters when superior, including marine and chloride environments is the primary requirement.
Mechanical & Physical Properties
| Grade designation | A4-80 (316) |
|---|---|
| Magnetic response | Largely non-magnetic |
| Service temperature | approx. -200 °C to +400 °C |
| Corrosion characteristic | Superior, including marine and chloride environments |
Galvanic & Galling Considerations
Two important notes for stainless push-in pneumatic fittings: (1) stainless can gall on stainless threads under load — use a thread lubricant or anti-galling compound, especially for M6 and below; (2) when joined to aluminum or galvanized steel, stainless can drive galvanic corrosion of the less-noble metal in wet service — isolate with a coating or sleeve where appropriate.
Comparable Grades
For Push-In Pneumatic Fittings, the alternative stainless grade is A2 (304). A2 (304) suits general indoor and outdoor service; A4 (316) adds molybdenum for marine and chloride environments. Where higher strength matters more than corrosion, switch to plated alloy-steel class 8.8 or 10.9.
Sizes of Push-In Pneumatic Fittings Available in A4 Stainless Steel
| Tube OD (mm) | Thread size | Flow ref (Nl/min) | Max pressure (bar) | Pull-out force (N) | Reference standard | Notes |
|---|---|---|---|---|---|---|
| 4 | M5x0.8 | 80 | 10 | 70 | ISO 6150 | Push-in pneumatic fitting for PA/PU tubing |
| 4 | 1/8 BSP | 80 | 10 | 70 | ISO 6150 | Push-in pneumatic fitting for PA/PU tubing |
| 6 | M5x0.8 | 200 | 10 | 120 | ISO 6150 | Push-in pneumatic fitting for PA/PU tubing |
| 6 | 1/8 BSP | 200 | 10 | 120 | ISO 6150 | Push-in pneumatic fitting for PA/PU tubing |
| 6 | 1/4 BSP | 200 | 10 | 120 | ISO 6150 | Push-in pneumatic fitting for PA/PU tubing |
| 8 | 1/4 BSP | 350 | 10 | 180 | ISO 6150 | Push-in pneumatic fitting for PA/PU tubing |
| 8 | 3/8 BSP | 350 | 10 | 180 | ISO 6150 | Push-in pneumatic fitting for PA/PU tubing |
| 10 | 1/4 BSP | 500 | 10 | 250 | ISO 6150 | Push-in pneumatic fitting for PA/PU tubing |
| 10 | 3/8 BSP | 500 | 10 | 250 | ISO 6150 | Push-in pneumatic fitting for PA/PU tubing |
| 10 | 1/2 BSP | 500 | 10 | 250 | ISO 6150 | Push-in pneumatic fitting for PA/PU tubing |
| 12 | 3/8 BSP | 700 | 10 | 350 | ISO 6150 | Push-in pneumatic fitting for PA/PU tubing |
| 12 | 1/2 BSP | 700 | 10 | 350 | ISO 6150 | Push-in pneumatic fitting for PA/PU tubing |
| 16 | 1/2 BSP | 1200 | 10 | 500 | ISO 6150 | Push-in pneumatic fitting for PA/PU tubing |
| 16 | 3/4 BSP | 1200 | 10 | 500 | ISO 6150 | Push-in pneumatic fitting for PA/PU tubing |