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EU to US

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AlotLeftToLearn

Mechanical
Joined
Jan 31, 2014
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Location
CA
European metals typically us codes such as +AT (solution annealed), +C, +1D in their standards such as EN 10088. When trying to find an equivilant material here in the USA, are using these codes considered the same here or is there another way that is more accepted here in the US?

Background: Stainless Tubes: I'm thinking A511 MT304 would be a good alternative for X5CrNi18-10+AT EN 10297-2. Do i need to specify in words that the metal should be solution annealed? can i use +AT or another code acceptable in the US?
 
You need to read A511 and see if there are HT options. In many cases the material must be annealed.
Unlike the EN the ASTM are product specific.

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Plymouth Tube
 
I do not suggest using the +AT designation together with ASTM A511. That designation is particular to the EN standards system, and most people in North America will not be familiar with it. The following in an excerpt from ASTM A511:

5.3 Unless otherwise specified, all austenitic tubes shall be
furnished in the annealed condition. The anneal shall consist of
heating the material to a minimum temperature of 1900°F
(1040°C) and quenching in water or rapidly cooling by other
means. Alternatively, immediately following hot forming while
the temperature of the tubes is not less than the specified
minimum solution treatment temperature, tubes may be individually
quenched in water or rapidly cooled by other means.
This anneal shall precede final cold work, when cold-worked
tempers are required.
 
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