A216M vs A216 material

[Michael Tho]

What is the difference between A216 and A216M ?

Normally we offer A216-WCB/WCC however this time the requirement comes with A216M-WCB/WCC.

Please advise and any document that explains the difference?

Thank you.

[venkat chikkala]

Dear, 

M indicates Unit of measurement (SI units) please find below abstract  of ASTM A 320- 21a, same Clause may present in A 216 also.

"1.6 This specification is expressed in both inch-pound units and SI units; however, unless the purchase order or contract specifies the applicable M specification designation (SI) units, the inch-pound units shall apply."

Regards,

CH V RAMANA 

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