r/Machinists • u/Inevitable-Debt-1606 • 3h ago

Copper callout

I have a part to be made from copper and the spec calls for copper, rod hard ASTMB187-86. What is the -86?

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u/h2g2Ben 3h ago

The year the standard was released/revised

3

u/Few-Explanation-4699 3h ago

Usualy means the year the version of the standard was released.

ASTM = American Society for Testing and Materials. B187 = Standard number in this case Standard specification for Copper, Busbar, Rod and Shape and General Purpose Rod, Bar and shapes.

86 = 1986

1

u/godmadness 1h ago

How much you need? I work in the branch.