what m means in some specs of astm? 1

[rasoolrashidi]

hi
how are you?
please answer my question:
what m means in some specs of astm?
for example:a182/a182m
what is difrences between them?

 

[TVP]

A182 uses inch-pound units, A182M uses SI (metric) units. They are identical in all other aspects.

 

[metengr]

The suffix M means the standard is in metric version.

http://www.keytometals.com/page.aspx?ID=CheckArticle&site=kts&NM=306

 

[EdStainless]

And you need to know which to work to, the values are not exactly the same and the tolerances are slightly different. Conversion can get you into a lot of trouble.

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Plymouth Tube

 

[rasoolrashidi]

thanks so much