JB/T 9503-2015
The evaluation method and hierarchy of the cobalt base alloy inclusion for the shaft tip of instrument (English Version)

Standard No.

JB/T 9503-2015

Language

Chinese, Available in English version

Release Date

2015

Published By

Professional Standard - Machinery

Latest

JB/T 9503-2015

Replace

JB/T 9503-1999

Scope

This standard specifies the classification and grade of cobalt-based alloy inclusions for instrument shaft tips, method principles, sampling and surface preparation, test methods and evaluation principles. This standard is applicable to the grade assessment of non-metallic inclusions (hereinafter referred to as inclusions) in cobalt-based alloys for instrument shaft tips.

JB/T 9503-2015 history

• 2015 JB/T 9503-2015 The evaluation method and hierarchy of the cobalt base alloy inclusion for the shaft tip of instrument
• 1999 JB/T 9503-1999 Inclusional appreciating method and classifying standard of cobalt - base alloys for meter pivots