STRESSPROOF quality even exceeds the normal industry standard of ASTM A311 with the controlled low stresses, reliable machining and improved surface quality. The whole mystique behind STRESSPROOF is simply that it provides longer part life with less manufacturing costs. STRESSPROOF was designed to meet, in one bar, the need for greater strength, elimination of heat treatment, better machinability and improved fatigue and wear resistance. APPLICATIONS: Arbors, keyed shafts, spindles, gears, pinions, piston rods, sleeves, lead screws, racks, motor shafts, splined shafts, link pins, mandrels, boring bars, collets, bushings, drive shafts, armature shafts, rotary pump shafts, gusher pump shafts, king pins, oil and water pump shafts, wrist pins. STRESSPROOF: 3/8" to 4-1/2". Stock length 12' R/L
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