Mechanical properties of the most popular spring s

2022-09-22
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Mechanical properties of common spring steels

note: 1. In addition to the upper and lower limits of the specified heat treatment temperature, the allowable deviation of the heat treatment temperature in the table is: quenching ± 20 ℃ tempering ± 50 ℃. According to the special requirements of the demander, tempering can be carried out at ± 30 ℃

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① one of the following samples can be used: if the tensile test is carried out according to gb228-87 metal tensile test method, the measured δ Value for reference. (end)

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