Alloy Steel grade 12.9? 3

[mbfree]

Hi,
I am looking for a composition information on what is referred to as "Alloy Steel, grade 12.9"

Any help would be appreciated....

 

[CoryPad]

Property Class 12.9 is for externally threaded fasteners. You can find the requirements in ISO 898-1 or ASTM F 568M.

Regards,

Cory

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

 

[limct]

Go to

http://www.bossard.com/techinfo/en/index.html

section S
Screws (property classes 3.6 to 12.9)



Best regards,
ct