|
|
发表于 2015-1-20 14:38:54
|
显示全部楼层
ASTM A312 / A312M - 14b [url=]An ASTM designation number identifies a unique version of an ASTM standard.
A312 / A312M - 14b
A = ferrous metals;
312 = assigned sequential number
M = SI units
14 = year of original adoption (or, in the case of revision, the year of last revision)
b = indicates subsePressure Pipingquent revision in same year
[/url]Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
上面 ASTM A312 / A312M - 14b 是最新版本。
ASME BPVC Sect Ⅱ,Part A ,2013
SA-312/SA-312M-2013
(Identical with ASTM Specification A 312/A 312M-01a except for the deletion of 5.2, revision to 6.2 to add “H” Grade heat treatment
requirements and editorial differences in 7.1 and Table 1 and an editorial correction to the Cr and Ni percent chemical composition for UNS
S31002 in Table 1.)
|
|
|