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Status : Active
Standard Type : Main
Document No : ISO 19690-2:2018
Document Year : 2018
Pages : 29
Edition : 1
Section Volume : Springs (ISO/TC 227.)
Grade A defines basic requirements of disc springs for static applications with low and moderate performance. Springs manufactured according to Grade A are not used for dynamic applications.
Grade B defines requirements on disc springs especially used for dynamic applications and high performance static applications. Disc springs according to Grade B ensure a better quality by higher demands on manufacturing processes and tolerance requirements. Grade B includes graphs showing the guaranteed fatigue life such as a function of stress.