For hydraulic applications, steel tubes are commonly used with a phosphate external coating which also provides corrosion resistance.
Other more corrosion resistant materials such as 304, 316 and Duplex Stainless Steels are also available for use with flared and retained ring systems.
The only material acceptable for use with Tube-Mac® 37° Flare Systems is EN10305-4 (DIN2391c NBK). The allowable working pressure of the system may be less than the allowable working pressure of the tube.
Download our Seamless Steel Tubes PDF here for additional technical and ordering information.