Other Materials


In some cases, the circumstances require special materials with exceptional characteristics. In such cases, Roveron will gladly discuss the best material for the particular spring with the customer.

The tables below list a number of materials that are often used.

Description Wst no. Characteristic Application
Nimonic 90 2.4632 Proven material for high temperature applications Various high temperature applications (higher than Inconel)
Monel 2.4360 Excellent corrosion resistance in alkaline and acid environments Valves, pumps, chemistry, maritime
Phynox 2.4711 Excellent pitting characteristics, corrosion resistance and non-magnetic (Petro)chemistry, medical, maritime
Material Type Coiling Operating Temperature Heat treatment after coiling
Monel 400 Spring hardness Cold Up to 230° 300°C - 320°C for ½ - 1 hour + Air cooling (A.C.)
K-Monel 500 Spring hardness Cold Up to 260°C 540°C for 4 – 10 hours + Air cooling (A.C.)
Nimonic 90 Spring hardness Cold Up to 350°C 650°C4 for 4 hours + Air cooling (A.C.)
Nimonic 90 Solution annealed Cold 350°C-590°C 750°C for 4 hours + Air cooling (A.C.)