Standard Disc Spring (Spring Washer) Materials

Ck 67 (DIN 1.1231)
Ck 67 is the most inexpensive spring steel for low stress applications, but is no longer used by Mubea for Group 1 belleville disc springs.
51 CrV 4 (DIN 1.8159)
51 CrV 4 is the most regularly used disc spring material. 51 CrV 4 offers the best spring characteristics in the temperature range of – 15 °C to + 150 °C, due to high alloy content. The low end of the temperature spectrum can reach – 25 °C, if a reduction of durability is permissible. The high end of the spectrum can reach+ 200 °C, with hot presetting of the material. In addition, the 51 CrV 4 material has a lower level of relaxation than non-alloy steels.
51 CrMoV 4 (DIN 1.7701)
51 CrMoV 4 has comparable material characteristics to 51 CrV 4. The addition of molybdenum (Mo) enables disc springs with a thickness up to 40 mm to be easily through hardened. The 51 CrMoV 4 material is more apt for applications with a operating temperature range of 0 °C to -20 °C, due to its higher ductility than 51 CrV 4.
Standard Disc Spring Material Specifications
Application profile Material Designation DIN Material Number Modulus of Elasticity at 20°C (N/mm2) Max. Material Thickness (mm) Operating Temperature Range (°C) Lead Time to Obtain Raw Material Typical Application
Standard Material Ck 67
50 CrV 4
1.1231
1.181591)
206.000
206.000
1.25
25
-10 to 100
-20 to 1502)
*
*
Plant construction, machine tools
automotive
High Material Thickness 51 CrMoV 4 1.7701 206.000 40 -20 to 150 * Plant construction
1) Material no. 1.8159 also includes 51 CrV 4 2) with hot pre-setting this material may be used at temperatures up to approx 200°C 3) Material no. 1.4310 also includes X10 CrNi 19 9
* typically in stock ** 12-14 weeks, *** 14-16 weeks