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When to use A581 and A582

When to use A581 and A582

When to use A581 and A582

These two specs both cover free machining stainless steel materials.  A581 is for wire & wire rod, A582 is for bars.  What is the difference between a rod and a bar?  The metallurgist (long retired & not replaced) who wrote our spec referenced A581 which is for wire and wire rods.  I believe he stated that anything below a certain size (1/4"?) was a rod and not a bar.  The size we are buying is round .176".  

Now we have a new supplier PPAP with certs to A582.  Chemically, there is no difference, I have no problem using the material.  My only concern is matching certs to specs during quality audits.  I don't really want to track down every reference to A581 and change it to A582 but I will if that is really the right thing to do.  How do you decide which spec to use?


The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.

RE: When to use A581 and A582

dgallup, see ASTM A-555, at a quick look, it appears wire is coiled, bar is cut and straightened.



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