Corrosion Resistant Disc Springs: X7CrNiAl 17 7

Stainless steel disc spring

This standard range of stainless steel disc springs are manufactured from X7CrNiAl 17 7 (DIN 1.4568) at thicknesses from 1.25mm.

X7CrNiAl 17 7 to DIN 17 224 is a precipitation-hardened, corrosion resistant spring steel. It obtains its strength from cold rolling and precipitation hardening.

This material is strongly magnetic and cold working increases this further.

Disc springs can also be manufactured from other stainless steels types, please see the current disc spring materials table for possible options. Please contact us if you have applications that may require the use of even more exotic materials.

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15% Deflection
30% Deflection
45% Deflection
60% Deflection
75% Deflection
90% Deflection
NameOutisde dia (mm)Inner dia (mm)Thick (mm)Cone Ht (mm)Total Ht (mm)Thick Ratio Wt per 1000 pcs15-def-mm:(mm)Force NStress δII N/mmStress δIII N/mmForce NStress δII N/mmStress δIII N/mmForce NStress δII N/mmStress δIII N/mmForce NStress δII N/mmStress δIII N/mmForce NStress δII N/mmStress δIII N/mmForce NStress δII N/mmStress δIII N/mmDetailshf:att:pa_outside-diahf:att:pa_inner-diahf:att:pa_thick
S355183235.518.320.652.650.3311.4186519818616974083642503629535328886269840581107854481813641002 » 35-518-32
S4020424020.420.82.80.414.68651761881684366368246456953932137877003940101885346531264997 » 4020-42
S402042254020.42.250.72.950.3116.4210311921742026394340299260850039358326534861106679957771311939 » 4020-42-25
S452241754522.41.751.052.80.616.43675121191127826137118224195382318597694278079383832211009970 » 4522-41-75
S45224254522.42.50.83.30.3223.4812631911712481392335366160549348118296435940106378770561309923 » 4522-42-5
S50254155025.41.51.63.11.0717.1578531268138998513184520173521843399352439513111226407221266 » 5025-41-5
S5025425025.421.153.150.5822.87889127195168927337824154375493083619709371082085643101039992 » 5025-42
S50254255025.42.513.50.428.5913491761882625366367384056953750087876986141101885072531264993 » 5025-42-5
S5025435025.430.853.850.2834.31187120517536884203445461645506719888066289111125812106071381955 » 5025-43
S5628525628.521.43.40.728.6595099205177122039528463635723118528735369071588442249231019 » 5628-52
S5628535628.531.054.050.3542.98190218718237233873565477599523717982368188421060832104811308975 » 5628-53
S63312633121.553.550.7837.098667518115961713492216288504274842664632165857753645765891 » 63312
S63312563312.51.453.950.5846.361359126188257927036536854325304702613684565481282665651030957 » 63312-5
S71362571362.51.754.250.757.7214399719826832143833767353554472551471255916958566401897987 » 71362-5
S80413804131.94.90.6387.28203311219738282433825428394554687556571482107568619476966995 » 80413
S90462590462.52.555.051.0292.2317213321630659541440991845944890301756550344790060056201026 » 90462-5
S1125731125732.95.90.97171.922078371843728983545026182508604629064868654217727558575882 » 112573