JB/T 7946.3-1999
Metallograph of cast aluminium alloys.Cast aluminium alloys－Pinhole (English Version)

Standard No.

JB/T 7946.3-1999

Language

Chinese, Available in English version

Release Date

1999

Published By

Professional Standard - Machinery

Status

Be replaced 2017-07

Replace By

JB/T 7946.3-2017

Latest

JB/T 7946.3-2017

Replace

JB/T 7946.3-1995

Scope

This standard specifies the grading principles and rating methods for low-magnification pinholes of cast aluminum alloys. This standard is suitable for evaluating the pinholeness of cast aluminum alloys.

JB/T 7946.3-1999 history

• 2017 JB/T 7946.3-2017 Metallograph of cast aluminium alloys.Cast aluminium alloys－Pinhole
• 1999 JB/T 7946.3-1999 Metallograph of cast aluminium alloys.Cast aluminium alloys－Pinhole
• 0000 JB/T 7946.3-1995