Experts
I recently inspected a SA 106 pipe for my project and I faced the following problem.
Statement in our client specification for sour service: "Material shall meet the requirements of Nace MR0175/ISO15156". No specific statements regarding HIC/SSC test.
Statement in the Material test...
Dear Experts
I am new to the world of coating inspection. If I do excessive blasting on a surface which already having a profile of 60 micron(for example), what will be the consequences apart from excess abrasive consumption.Plz guide me
Regards
Rajj
Dear Experts
Please review the 2 code clauses which I referred below from ASME B31.3, 2014 Ed.
Clause 1:As per table 323.2.2 box A-4(a)-- if (1) Carbon > 0.1%; or (2) the material is not solution treated; then impact test has be carried out at design min.temp less than -29 degreeC except as...
Dear experts
We procured a plate material (sa 516) and its test certificate from a reputed german manufacturer. As per 5.1 of sa 20, the steel shall be made in open hearth, basic oxygen or electric arc furnace. But in the tc, they didnt specify exactly the type of furnace. They stated only...
Guys, We are fabricating a carbon steel vessel of 38mm thickness(shell). As per WPS, the base metal has to be preheated to 100C minimum. Unfortunately the external pad to Shell welding has been carried without Preheating. This is the Non conformance. What is the recommended resolution for this...
We are fabricating a steam generator for WHB.In client spec for tube expansion, they specified to expand 1/8inch beyond the tubesheet thickness (to the backside of the tubesheet). The tubes are to be strength welded and expanded to 3-8%. We used to expand as per TEMA i.e.tubesheet thickness...
Hi Guys,
I am new to this field. Can anybody explain what is the intention of Fire safe test for mechanical valves?.Whats the purpose of this test.API 607 states the method of doing but I am unable to find why to do?
Thanks
Rajj
Hi guys,
Is it advisable to do hydrotest of a newly constructed pressure vessel with sightglass on. My hesitation is, the purchase requirement of sightglass states only design temperature and pressure of a vessel which is less than the hydrotest pressure.There is some pressure value stated on...
Hi guys,
Recently I come across one vessel Inspector who confused me bit over RF pad welds. In my case, shell thickness is 20mm with inside single bevel (root face 1mm)& external RF pad thickness is 20 mm (root face 1mm). RF pad & shell together forms double bevel geometry with root face of 2mm...
Hi guys,
Recently I come across one vessel Inspector who confused me bit over RF pad welds. In my case, shell thickness is 20mm with inside single bevel (root face 1mm)& external RF pad thickness is 20 mm (root face 1mm). RF pad & shell together forms double bevel geometry with root face...
