TB/T 2450-1993
Metallographic inspection of ZG230-450 cast steel (English Version)

Standard No.

TB/T 2450-1993

Language

Chinese, Available in English version

Release Date

1993

Published By

Professional Standard - Railway

Status

Be replaced 2019-01

Replace By

TB/T 2942.2-2018

Latest

TB/T 2942.2-2018

Scope

This standard specifies the technical requirements, inspection items, rating charts, inspection methods and inspection rules for the metallographic structure of ZG 230-450 cast steel. This standard is applicable to the inspection of the metallographic structure of ZG 230-450 cast steel after heat treatment.

TB/T 2450-1993 history

• 2018 TB/T 2942.2-2018 Steel castings for rolling stock Part 2: Metallographic examination chart
• 1993 TB/T 2450-1993 Metallographic inspection of ZG230-450 cast steel

TB/T 2450-1993 Metallographic inspection of ZG230-450 cast steel was changed to TB/T 2942.2-2018 Steel castings for rolling stock Part 2: Metallographic examination chart.