Blanket Engineering Specifications

[meintsi]

Almost every company maintains some sort of basic engineering specification which is referenced on their detail drawings.

Question:
Does anybody work for a company whose engineering spec includes a reference to the maximum amount of residual magnetism allowed in a finished part or piece of raw stock?

Comments?

Remember...
[navy]"If you don't use your head,[/navy]
[navy]your going to have to use your feet."[/navy]

 

[Carburize]

Incoming raw material is specifed at 10 gauss maximum.
Finished parts are demagnetized to a maximum residual magnetism level of 5 gauss

 

[SJones]

ISO 3183-3 for linepipe demands a maximum of 3 mT (30 gauss) at the finished pipe ends.

Steve Jones
Materials & Corrosion Engineer

http://www.pdo.co.om/pdo/