American Welding Society Forum
ASME Sec. IX, Article III, QW 302.2
Please define coupon for me.
It is the two pieces of metal joined together by welding. In QW-302.2 your weld length must be at least 6" that can be examined by the appropriate NDE.
I wanted a confirmation on this as "someone" seems to think that coupon length is 2-3" pipe nipples with a butt weld in the middle...
So would 2 pcs of pipe 3" long not be suitable as a coupon? Please enlighten me as I see nothing wrong with dimension?
The dimensions for bend specimens are listed as 6" or as required.
For WPQ you have to weld a weld at least 6" in length. If qualification is by RT, the length of a pipe coupon is not important as long as the weld is 6" long.
May be wrong but I think the 6" length of weld is required for RT and bends. But for Rt you are right, OAL length doesn't matter for RT.
Thanks all of you for the confirmation.
Hey I just work here and am a "good soldier" who follows orders from the commanding officer.
a weld or braze assembly for procedure or performance qualification testing. The coupon may be any product from plate, pipe, tube, etc., and may be a fillet weld, overlay, deposited weld metal, etc.
EDIT: From ASME Sec IX Definitions
I get so confused at times. I thought we were discussing the things my wife cuts from the Sunday newspaper to get a quarter off of an item she would never otherwise purchase.
It happens to all of us :)
Have a good day Al.
You secretly want a 25¢ off deal on a can of Spaghetti-os. Dontcha?
Or 50 cents off that box of fruit loops.
The annual interest rate paid on a bond, expressed as a percentage of the face value. It is also referred to as the "coupon rate,"
But I don't know what my investments have to do with your welding code
Bond, wasn't he a secret agent?
Happy Fourth of July Y'all!
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