Machinery's Handbook, 31st Edition
312
Stresses in Springs
160 150 140 130 120 110 100
Corrosion-resisting Steel Wire QQ-W-423, ASTM A313
Light service
Average service
Severe service
90 80 70
Wire Diameter (inch)
Fig. 5. Allowable Working Stresses for Compression Springs—Corrosion-Resisting Steel Wire a
190 180 170 160 150 140 130 120 110 100
Chrome-vanadium Alloy Steel Wire, ASTM A231
Light service
Average service
Severe service
90 80
Wire Diameter (inch)
Fig. 6. Allowable Working Stresses for Compression Springs—Chrome-Vanadium Alloy Steel Wire a
270 260 250 240 230 220 210 200 190 180 170 160 150 140 130 120
Music Wire, ASTM A228
Light service
Average service
Severe service
Wire Diameter (inch)
Fig. 7. Recommended Design Stresses in Bending for Helical Torsion Springs—Round Music Wire
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