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MDMT of 304 SS

MDMT of 304 SS

MDMT of 304 SS

(OP)
Hey Everyone:

Per ASME DIv. 1, what is the MDMT of SA-24-304 stainless steel, assuming no hardness testing?  Thanks!

 

RE: MDMT of 304 SS

You mean what is the MDMT for 304 material where impact tsting is not required?

-320 deg F.

RE: MDMT of 304 SS

(OP)
Thank you for the response!  Would mind telling me the section of Sec VIII you get the -320 from?   

RE: MDMT of 304 SS

(OP)
I should also add that my material is 5.25" thick!

RE: MDMT of 304 SS

UHA-51(d) Exemptions from Impact Testing for Base
Metals and Heat Affected Zones. Impact testing is not
required for Table UHA-23 base metals for the following
combinations of base metals and heat affected zones (if
welded) and MDMTs, except as modified in UHA-51(c):
UHA-51(d)(1) for austenitic chromium–nickel stainless
steels as follows:
(a) Types 304, 304L, 316, 316L, 321 and 347 at
MDMTs of −320°F (−196°C) and warmer;

RE: MDMT of 304 SS

Don't forget UHA-51(e)(2).

 

RE: MDMT of 304 SS

Also don't forget UHA-51(g).

(whenever applicable)

-TJ Orlowski

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