Hello everyone. I have this issue with a specification. I have this "ASTM B-62, UNS C-86300 smls pipe", and I was looking for a weight/schedule table and it seems pretty difficult to find. I also have some confusion about the spec itself, it is only for component castings of valves, flanges, and...
Greetings, I hope somebody can help me with this one, I am in a project involving the erection of a geodesic aluminum roof, is necesary to aply torque to the stainless steel fastners of the estructure of the dome, this is the node and the beam, both of aluminum, AA 5454 H34 and AA 6061 T6, the...
Hello everybody, I'm needing some help or orientation to make a standard procedure for certification of a power generation system, (emergency or stand by), of diesel internal combustion motor.
If you can recommend any guide or industrial standard for making procedures for this matter, please...
greatings, I have the following question about a replacement of a nut din 934 cl 8 M16 for a din 555C cl 10, its is permissible to do this change usn the same bolt din 933 M16 (length x) cl 8.8
Greetings, I have a doubt about the governing codes or standards in fabrication of tanks accessories as manholes, flush type nozzles and fittings, internal piping (draining and instrumentation), since API 650 doesn't mention any fabrication code requirements for the weld of a flush-type nozzle...
Hello team, is there a limitation in heat input for individual weld passes or is just a recommended practice do not weld above 3 KJ/mm,in SAW process for steel and mild steel?
Hello I have a doubt about how to measure and analyze the flatness and waviness tolerance in the shell, API 650 12th states this in the paragraph 7.5.2 a), pointing that we should use ASTM A6, A20 or A480 for checking the tolerance for out plumbness in one shell course.
My main doubt it's how...
Greetings group, I have a doubt about inspecting a butt weld of two steel plates of different thickness, I should evaluate using the lesser thickness first and then the greater, or should use only the greater thickness to evaluate the joint?
Greetings, I have some doubts about the equivalence of a S-355-J2,
Is S-355-j2 steel plate belong to 1.2 grouping of ISO 15608?
Is A572-Gr50 steel plate equivalent to a S-355-J2?
Based in the table 4.4 a of API 650 2013, is possible to say that all the materials in the group IVA are...
Is there any requirement about the surface finish on the face of the manholes, in the figure 5.7a of the API 650 2013 points that the face gasket shall be machine-finished to provide a minimum of 19 mm of gasket nearing, but doesn't specify the finish of is 125 rms, or 500 rms, i think that it...
We have a doubt about the design of the Flush Type Shell connection, in our weld sketch indicates an insert plate in which we are going to put our nozzle, following the recommendations of paragraph 5.7.8 of API 650 12th
But the corners of the insert plate in our design show a square cut, we...
Greetings, we have certain doubts about the stress relief in the welds of nozzle in the shell of an AST, in API 650 2013 in 5.7.4, states in 5.7.4.2 and 5.7.4.3 that the connection "shall be prefabricated into the shell plate or thickened insert plate, and the prefabricated assembly shall be...
Good morning estimates colleagues, i have a question about a change of flux and how affect the WPS.
We are currently working with SAW process, welding bottom plates of a storage tank, an 8 mm thick plates, S-275 J2, our current WPS was designed for work with a BS EN ISO 14174 SA AB 1 67 AC H5...
Hello dear colleagues, this is an extract of API 650 2013 " 7.3.6.8 Internal bottom elevation measurements shall be made before and after hydrostatic testing. Measurements
shall be made at maximum intervals of 3 m (10 ft) measured on diametrical lines across the tank. The diametrical
lines...
Hello Group is there any reject criteria for Bottom distortion in API 650 Storage Tank, we are working with 8 mm thick plate, using a SAW process, we are actually correcting the more visible buckle in bottom, but if there are is any measurement that i could apply for detecting these deformations
Hello, we got a deformation in a 9 mm plate, S-275-J2, of a storage tank, for error some fitters tried to correct the problem applying flame straightening but they heating up 10 cm length directly above the weld, we decided to make it a hardness test and we got 205 and 225 HB in the HAZ, our...
