JB/T 9129-2000
60Si2Mn steel helical springs metallographic test (English Version)

Standard No.

JB/T 9129-2000

Language

Chinese, Available in English version

Release Date

2000

Published By

Professional Standard - Machinery

Latest

JB/T 9129-2000

Scope

This standard specifies the metallographic inspection methods and microstructure rating diagrams of 60Si2Mn steel spiral springs after quenching and medium temperature tempering. This standard is applicable to the microstructure evaluation of 60Si2Mn steel spiral springs after quenching and medium temperature tempering. Other Si-Mn steel and Mn steel coil springs can also be implemented by reference.

JB/T 9129-2000 history

• 2000 JB/T 9129-2000 60Si2Mn steel helical springs metallographic test