NJ 309-1983
Metallographic inspection standard for internal combustion engine connecting rod bolts (English Version)

Standard No.

NJ 309-1983

Language

Chinese, Available in English version

Release Date

1983

Published By

Professional Standard - Farm Machinery

Status

Be replaced 2000-10

Replace By

JB/T 8837-2000

Latest

JB/T 7293.3-2014

NJ 309-1983 history

• 2014 JB/T 7293.3-2014 Internal combustion engines.Bolts and nuts.Part 3: Connecting rod bolts.Metallographic examination
• 2000 JB/T 8837-2000 Internal combustion engines.Connecting rod bolts.Metallographic examination
• 1983 NJ 309-1983 Metallographic inspection standard for internal combustion engine connecting rod bolts

NJ 309-1983 Metallographic inspection standard for internal combustion engine connecting rod bolts was changed to JB/T 8837-2000 Internal combustion engines.Connecting rod bolts.Metallographic examination.