TB/T 3239-2010
Metallographic examination graph spectrum of widmanstatten structure in microalloying steel used for railway (English Version)

Standard No.

TB/T 3239-2010

Language

Chinese, Available in English version

Release Date

2010

Published By

Professional Standard - Railway

Status

Be replaced 2019-02

Replace By

TB/T 1978-2018

Latest

TB/T 1978-2018

Scope

This standard specifies the metallographic inspection and assessment methods, assessment principles, organizational characteristics and quantitative parameters and rating charts for the Widmanstatten structure and grade of Q460E microalloyed steel for railway use. This standard is applicable to the evaluation of the Widmanstatten structure of Q460E microalloyed steel for railway use.

TB/T 3239-2010 history

• 2018 TB/T 1978-2018 Railway freight car bogie combined brake beam
• 2010 TB/T 3239-2010 Metallographic examination graph spectrum of widmanstatten structure in microalloying steel used for railway

TB/T 3239-2010 Metallographic examination graph spectrum of widmanstatten structure in microalloying steel used for railway was changed to TB/T 1978-2018 Railway freight car bogie combined brake beam.