Search results for query: *

Dear All, I would like to ask if the UT equipment was calibrated with 10mm transducer and during the site inspection, we used 5mm transducer, do we need to calibrate again the equipment as per ASTM E317?

Dear Colleagues, I would to know how to weld a square bar made of SM45C (equiv. to ASTM A29-1045). What are the filler (TIG) or electrodes (SMAW) to be used if we will conduct repair welding? What is the required preheat temperature and if required PWHT? Thank you.

Good day Gents, I would like to ask for your technical advice when doing the pump/motor alignment. What causes the motor shaft to be hardly rotated at the start, but when partially rotated, it can be rotated by hand easily? We used sling belt wrap around the shaft with a scaffolding pipe to...

Dear Gents, If conducting UT (weld) is only available from side since there's no space on the other side (just like welding end cap with 41.3mm thick). Is there a code consideration that if only one side is possible then we can consider one side UT check is acceptable? Thank you.

Dear Experts, I would like to know if there's acceptance criteria for the TBC spallation of gas turbine blades? Is there any reference codes or standards?

Dear All, With regard to GTAW WPS, if the WPS mentioned that the filler wire diameter is 2.4mm but the available filler wire size for GTAW is only 3.2mm. Does we require to provide new GTAW WPS?

Dear Colleagues, I would like to ask if we required to qualify our a technician before he can do UT thickness check on tubes or pipe? Any code requirements for operator concerning thickness check? Since our unit also design only for material thickness verification. Thank you.

Dear Experts, Our plate welders are qualified with SMAW process. We plan to used FCAW (pre-qualified WPS), is there a required re-qualification for our welders?

Dear Gents, I would like to ask for the acceptance criteria of pull off testing using dolly (Hydraulic Adhesion Tester)? We have applied primer, intermediate and top coat after we conduct pull off test after 2 weeks. The result of the pull off test is 5 MPA. Is this acceptable?

Dear Experts, With regard to remelt of welding bead (root) using GTAW process, is this acceptable in ASME codes? Please provide me a technical explanation. Thank you!

Dear All, When conducting hardness test on P91 pipe, the hardness value is less than the requirements of our project. Our company sets a range of 190-265 Hv hardness of the base metal, but some of our reading is less than 190 Hv. I would like to know the correct surface preparation in order to...

Dear All, We are planning to use Rydlyme Descaler as a way of removing internal surface rust of tubes, but we want to know if this Rydlyme solution will not make a negative effect on the tubes. Our tubes are made from SA-213 T91. Does the rydlyme solution will not react to the chromium content...

Dear All, Can anyone help me in finding the required filler wire when welding material made of X19CrMoNbVN11-1? Thanks.

Good day, I need someone who has experience in boiler (HRSG) preservation. One of our HRSG's is under refurbishment (replacement of a bundle of tubes or harps). How do we stop the corrosion to build-up on the internal surface of piping? At what percentage of oxygen that corrosion will not occur?

In ASME Section IX QW-423 Alternate base materials for WPQT, if we qualify a welder on a WPS with a base material of P-No. 5A, does it mean we can use CS test pipe instead of P-No. 5A provided that the other essential variables are followed? We will use the same filler wire, backing gas, etc. as...

In welder test, does it necessary to carry out PWHT if it is required on the WPS? Can we apply QW-301.2 where preheating and PWHT are omitted during performance testing? Our client requests to conduct PWHT after welding on welder test.

We have fabricated a tube (T23) to header (P11) weld with the used of old WPS with a filler wire ER80S-B2. Since the release of code case 2199-4, new WPS was issued and the filler wire was changed to ER90S-B3. What are the reasons of changing the filler wire from ER80S-B2 to ER90S-B3?

What does government procurement means when are talking about ASME Section 2 / ASTM?

What does government procurement means when are talking about ASME Section 2 / ASTM?

Dry pipe system (Pre-action Valve activated by smoke detector). During alarm gong testing pressure switch is activated due to the flow of water, does the pressure switch will give signal to the solenoid valve to open the check valve? We are facing issues with our clients because in order to test...