NDEs
NDEs
(OP)
Anybody tells me the NDE meaning?
RT1
RT2
RT3
Thanks.
RT1
RT2
RT3
Thanks.
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RE: NDEs
RE: NDEs
Some customers specify those levels.
I guess:
RT1: 100% testing;
RT2: spot UW-11(b) type 1 on long. seams, spot UW-11(a)(5)b type 1 on circum.
RT3: all seams spot UW-11(b) type 1.
Please advise.
RE: NDEs
RT Type 1; double welded butt joint
Type 2; single welded butt joint with a backing strip
Type 3; single welded butt joint with no backing strip
Type 4; double fillet welded lap joint
Type 5; single full fillet welded lap joint w/plug weld
Type 6; " " " wo/plug weld
Type 7; corner joints, full, partial or fillet weld
Type 8; angle joints
Please refer to this table for a complete description.
RE: NDEs
Your second post is right. Take a look at VIII-1 UG-116(e) for the formal definitions of RT 1, RT 2, RT 3, and RT 4.
jt
RE: NDEs
ASME VIII Div 1 UG-116 (e) gives you all you need to know about RT 1, 2, 3, 4.
It will also refer you back to UW-11, UW-51 for more info.
In a nut shell RT 1 is "full" RT since "100% RT" does not really exist.
RT 2 tru 4 are various spot RT cases. You need to read those.
What meteng refers to are joint categories and these are related to the extent of RT and joint configuration to give you joint efficiencies.
I hope it helps.
RE: NDEs
RT2 = full RT of Category A seams, plus UW11a5b of B seams
RT3 = spot RT of main vessel butt welds
RT = RT performed does not meet requirements of RT1, RT2 or RT3.
Steve Braune
Tank Industry Consultants
www.tankindustry.com
RE: NDEs
"RT = RT performed does not meet requirements of RT1, RT2 or RT3" should read...
RT4 = RT performed does not meet requirements of RT1, RT2 or RT3
Steve Braune
Tank Industry Consultants
www.tankindustry.com
RE: NDEs
Ding123