ASTM A240/A240M updated – Chromium and Chromium-Nickel Stainless Steel

ASTM A240/A240M is a good example of a top-selling standard that has been frequently changed during the past couple of years.  Titled “Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications,” the document was just issued as the 2014 Edition.  Take a look at our page with the history of the ASTM A240/A240m revisions and prepare to be amazed!

Let’s take a look at some of the changes over the last year or so:

ASTM A240/A240M 2014 Edition:

• Rockwell C maximums (equivalent to Brinell maximum) list for UNS numbers S31260, S32101, S32202, S32520, S32760 and S82441 (Table 2).

ASTM A240/A240M 2013c Edition:

• UNS 82012 and UNS S82031 were added to Tables 1 and 2.

ASTM A240/A240M 2013b Edition:

• UNS S44537 and S44100 were added to Tables 1 and 2.

ASTM A240/A240M 2013a Edition:

• UNS S33550 was added to Tables 1 and 2.
• Ti and Al Requirements for UNS N08811 were clarified (Table 1)
• UNS N08925 to Tables 1 and 2.

ASTM A240/A240M, 2013 Edition:

• In Table 2, the thickness range that applies to the lower minimum yield and tensile strength was changed for UNS S32003.

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