Does WPB grade apply only for A234
Does WPB grade apply only for A234
(OP)
Does WPB stand only for ASTM A234 ?
I'm asking because ANSI B16.9 fitting are only marked WPB, they were ordered A234 gr WPB but how can I be sure it's A234 the only way it is OK is if they is no other materials with this grade ?
I'm asking because ANSI B16.9 fitting are only marked WPB, they were ordered A234 gr WPB but how can I be sure it's A234 the only way it is OK is if they is no other materials with this grade ?





RE: Does WPB grade apply only for A234
Gerald Austin
Iuka, Mississippi
http://www.weldinginspectionsvcs.com
RE: Does WPB grade apply only for A234
Some body told me W stands for weldable, P stands for "made from pipe", B stands for items equivalent to grade B (A 106 Gr B, API 5l Gr B etc), HY stands for high yield.
In castings you may find WCB, Here "C" stands for casting.
RE: Does WPB grade apply only for A234
WP - wrought product
WPL - wrought product for low temp service
F - forging
LF - forging for low temp service
TP - tubular product
ASTM did not seem to have a consistent scheme in place when they made this all up. I just go look it up any time I come across one I am not familiar with.
I did a text search of the B&PVC Section II and could only find WPB associated with the A234 spec, and A234 specifically states that the spec number does not need to be marked on the fitting...
RE: Does WPB grade apply only for A234
Can any one fill us in with the appropriate suffix deciphers.
RE: Does WPB grade apply only for A234
W = WELDABLE
P = RELATED TO P NUMBER OF ALLOY MATERIAL
B = REFER TO MINIMUM YILED OF MATERIAL