The level of the working temperature can significantly influence the function of a metal spring, as the tendency to Relaxation increases with increasing temperature.
table : Limit temperatures from Spring materials with minimal relaxation
| material | Maximum working temperature in ° C at | |
| High load | Lower exposure | |
| Patented drawn spring steel wire according to EN 10270-1 | 60-80 | 80-150 |
| Oil tempered valve spring wire according to EN 10270-2 | 80-160 | 120-160 |
| X10CrNi 18.8 (1.4310) | 160 | 250 |
| X7CrNiAl 17.7 (1.4568) | 200 | 350 |
| X5CrNiMo 17-12-2 (1.4401) | 160 | 300 |
| CuSn6 | 80 | 100 |
| CuZn36 | 40 | 60 |
| CuBe2 | 80 | 120 |
| CuNi18Zn20 | 80 | 120 |
| Inconel X750 | 475 | 550 |
| Nimonic90 | 500 | 500 |
Maximum working temperature of spring materials