Stockist and supplier of ASTM A249 Tubing

ASTM A249 / A249M – 16a

An ASTM designation number identifies a unique version of an ASTM standard.

A249 / A249M – 16a

A = ferrous metals;

249 = assigned sequential number

M = SI units

16 = year of original adoption (or, in the case of revision, the year of last revision)

a = indicates subsequent revision in same year