I appreciate the response. My understanding is table 6 is referring to welding a pipe or nipple into the blind flange with a fillet weld on the outside and inside (reducing slip-in flange). My question was can you machine a hole into the blind flange and just attach a weld-olet to the outside?
Per ASME B31.3, is welding a 2" Weldolet to a 20" blind flange code compliant? If so, what code discusses this situation. Similar situation is welding a 3" Weldolet to an 8" Blind flange.
My question is, the welders for this particular job and the welding procedure are qualified on X60 pipe (group 2). X60 pipe was ordered for the project, after further investigation the MTR's show that the actual yield strength is 69,000. Does this mean that the welders and procedure need to be...
My understanding that progressive sampling in B31.3 work the following way:
1 Reject - 2 tracers
1 reject out of those tracer - 2 more tracers
1 reject out of those tracer - 100% NDE
what if in the first batch of sampling a welder has 4 rejects? The code does not exactly explain what to do in...
