Nameplate Stamping
Nameplate Stamping
(OP)
I have a drum with bottom smls elips head joint to a smls pipe and finally welded with a std flange with blind cover. Noted that there is no longitudinal seams involved but top and bottom circ seam are spot RT.
Anyone could advise whether the nameplate shall be stamped RT-2 or RT-3?
Thank you.
YL0525
Anyone could advise whether the nameplate shall be stamped RT-2 or RT-3?
Thank you.
YL0525





RE: Nameplate Stamping
and what joint efficiency are you using for head and shell?
RE: Nameplate Stamping
What if it is spot x-rayed to uw-11(a)(5)(b)?
RE: Nameplate Stamping
Joint efficiency should be per Table UW-12 for Type 1 or 2 butt joints radiographed in accordance to UW-11(b). So E = 0.85 for Type and E = 0.8 for Type 2. Nameplate to be stamped RT-3.
Joint efficiencies would be E = 1. Nameplate to be stamped RT-2.
RE: Nameplate Stamping
RE: Nameplate Stamping
RE: Nameplate Stamping
if your calculations say E=1.0 you have to stamp RT-2
if you calculations say E=0.85 then you have to stamp RT-3
It's really RT-2 but if you need to keep MAWP down some then you could use RT-3 and 0.85% on calcs.
Some may argue with this...but....
RE: Nameplate Stamping