From the classification of steels, 40Cr is a low hardenability quenched and tempered steel. It has high strength, good plasticity and toughness, namely excellent comprehensive mechanical properties. 40Cr steel can be used to manufacture auto connecting rods, bolts, drive shafts, and machine tool spindles.
Formulation of 40Cr Heat Treatment Process
Quenching Process
Heating temperature: 850℃
Holding time: 80 minutes
Cooling method: Oil quenching
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