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Alloy Steel grade 12.9? 3

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mbfree

mbfree

Mechanical
Joined
Nov 2, 2006
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Hi,
I am looking for a composition information on what is referred to as "Alloy Steel, grade 12.9"

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

Regards,

Cory

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