Disc spring materials
The most common material for disc springs is 51CrV4, they have a modulus of elasticity of 206.000 N/mm2 at 20ºC and a Poisson coefficient m = 0,3. Carbonated steels (CK67) are only used for group 1 disc springs (t<1,25).
Special materials for special applications, a wide range of materials is available, each giving special properties to the springs. This differences must be taken into account when carrying out calculations. Selecting the appropriate material we can get springs which will resist temperatures down to -260ºC and up to 700ºC. In addition to this, some materials are interesting due to their special resistance to corrosion, or their non-magnetic propeties.
Additional protection against corrosion:
It is posible to add finishings to the springs such as other material coverings, to give them an extra protection againtst corrosion.
| Abbreviated Name |
Material Number |
DIN | Modulus of Elasticity kN/mm2 | Operating Temperature Range ºC | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20ºC | 100ºC | 200ºC | 300ºC | 400ºC | 500ºC | 600ºC | 700ºC | 800ºC | ||||
| Ck67 | 1.1231 | 17222 | 206 | - | - | - | - | - | - | - | - | -20 to 60 |
| Ck75 | 1.1248 | 17222 | 206 | - | - | - | - | - | - | - | - | -20 to 60 |
| 50CrV4 | 1.8159 | 17222 | 206 | 202 | 196 | - | - | - | - | - | - | -50 to 100 |
| 51CrMoV4 | 1.7701 | 17221 | 206 | 202 | 196 | - | - | - | - | - | - | -50 to 100 |
| 48CrMoV67 | 1.2323 | 17350 | 206 | 202 | 196 | 189 | 179 | - | - | - | - | -60 to 300 |
| X30WCrV53 | 1.2567 | - | 206 | 202 | 196 | 189 | 179 | 168 | - | - | - | -60 to 400 |
| X35CrMo17 | 1.4122 | - | 209 | 205 | 199 | 192 | 181 | 172 | - | - | - | -60 to 400 |
| X22CrMoV121 | 1.4923 | 17240 | 206 | 202 | 196 | 189 | 179 | 168 | - | - | - | -60 to 500 |
| X7CrNiAl177 | 1.4568 | 17224 | 200 | 195 | 185 | 175 | 165 | - | - | - | - | -200 to 350 |
| X12CrNi177 | 1.4310 | 17224 | 190 | 185 | - | - | - | - | - | - | - | -200 to 100 |
| X5CrNiMo17122 | 1.4401 | 17224 | 185 | 180 | - | - | - | - | - | - | - | -200 to 100 |
| NiCr19NbMo | 2.4668 | 65021 | 200 | 195 | 190 | 184 | 178 | 172 | 167 | 160 | - | -260 to 700 |
| NiCr15Fe7TiAl | 2.4669 | - | 214 | 207 | 198 | 190 | 179 | 170 | 158 | - | - | -260 to 600 |
| NiCr20Co18Ti | 2.4969 | 17754 59745 |
206 | 201 | 195 | 189 | 181 | 175 | 167 | 160 | 151 | -260 to 800 |
| Duratherm 600 | - | - | 220 | 214 | 207 | 200 | 193 | 185 | - | - | - | -260 to 500 |
| CuBe1.7 | 2.1245 | 17666 17670 |
135 | 131 | 125 | - | - | - | - | - | - | -260 to 200 |
| CuBe2 | 2.1247 | 17666 17670 |
135 | 131 | 125 | - | - | - | - | - | - | -260 to 200 |
| TiAl6V4 | 3.7165 | 17851 17860 |
114 | 110 | 105 | 98 | 93 | - | - | - | - | -70 to 350 |