JB/T 7946.4-1999
Metallograph of cast aluminium alloys.Cast aluminium-copper alloys－Grain size (English Version)

Standard No.

JB/T 7946.4-1999

Language

Chinese, Available in English version

Release Date

1999

Published By

Professional Standard - Machinery

Status

Be replaced 2017-07

Replace By

JB/T 7946.4-2017

Latest

JB/T 7946.4-2017

Replace

JB/T 7946.4-1995

Scope

This standard specifies the grading principles and rating methods for the grain size of cast aluminum-copper alloys. This standard is suitable for evaluating the grain size of cast aluminum-copper alloys.

JB/T 7946.4-1999 history

• 2017 JB/T 7946.4-2017 Metallography of cast aluminum alloys - Part 4: Grain size of cast aluminum-copper alloys
• 1999 JB/T 7946.4-1999 Metallograph of cast aluminium alloys.Cast aluminium-copper alloys－Grain size
• 0000 JB/T 7946.4-1995