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Do I need mill test for tubes to be installed on a Power Boiler built according to ASME Section I? hcjulien

I'm searching for the fatigue curve of the following material: • 5Cr-0.5Mo : A-335-P5/SA-335-P5/UNS K41545 • Stainless Steel : A-297 HF (mod 5014) Can you refer me some references I can buy that does include these curves? Thanks!!! Hcjulien

Hi, I want to know if a NDE method exists to be able to measure the available thickness of a saddle reinforcement pad welded on a horizontal pressure vessel and installed on a concrete foundation as shown in the following picture (see red arrow). The pad in made from SA-516 Gr. 70 plate, 1''...

Hi, All formulas described in API 650 appendix P are based on the following document: Analysis of Loads for Nozzles in API 650 Tanks, M. Lengsfeld,... Paper PVP-Vol 430, ASME, New York, 2001. I want to buy a copy of this document. Where can I find it? Regards, Hcjulien

We have a pressure vessel manufactured according to ASME Section VIII div. 1. An inspector has rejected our design because we didn't take in consideration the pressure thrust on the manhole opening design per WRC 368. I've try to explain to the inspector that all stress caused by the...

Hi, I need to specify which standard to a contractor to repair a leak in one 15 feet diameter atmospheric fiberglass reinforced plastic (FRP) storage tank. I've found two standards related to FRP: API Spec 12P, Specification for Fiberglass Reinforced Plastic Tanks & MTI 129, A Practical Guide...

Hi, we have to transport (piping) and store (storage tank)tallow at a temperature of 150F with a TAN of 6.2 mg KOH/gr, Sulphur at 50 ppmwt, Nitrogen at 236 ppmwt, Na at 53 ppmwt, Ca at 5 ppmwt, K at 40 ppmwt, P at 194 ppmwt, Mg at 11 ppmwt and Si at 17 ppmwt. Do you think Carbon steel will...

We are creating a 3/4'' thick butt weld on a P4 (1.25Cr-0.5 Mo) low alloy steel material. According to the weld procedure we are keeping a preheat temperature of 350F. The welder during the welding process has dropped by mistake a big glass of water on the surface of the weld and the...

Hi, A 4'' nom. dia. piping has high propability of slug flow and the current support shall be redesigned. I was thinking to put a fix support or a hydraulic shock absorber damper device at the end of a long horizontal section. Normally, when you design pressure piping (ASME B31.3) including...

Hi, I'm calculating the remining life of a heater designed according API 530. The skin temperature of the convection portion of the heater is working at 1000F and is made of A200 T9. My question is for the rupture design and not for the elastic one. If the future steel to be corroded...

Hi, Is there any API/ASME/CSA/BS standard or other references specifying the exact minimum required thickness rules for pressure vessel and piping to be able to resist safely to stress caused by sandblast when the equipment is still alive? Thanks in advance

Hi all, We have a leak in a flange on the tube side of a kettle type heat exchanger (tube side has higher pressure than shell side). The exchanger is a AKT type (TEMA). We have often condensate accumulation on the bottom of the channel creating a temperature gradient in the flange. The...

Hi, To be able to realize a complete stress analysis, I'm searching for a way to determine the ''i'' factor (Stress Intensificator Factor) of an unreinforced fabricated ''Y'' connection in a B31.3 piping system. Can you help me out? Thanks in advance, Hcjulien

I have a heater tube made from A200 T9 (9Cr-1Mo) operating at 500 PSIG and 725F. In is working life, several times (Qty: 10) the tube has reached 1000F at the same pressure. Today I have to evaluate if a localized thin area is acceptable to operate for the next two years. Supposing that we...

Hi, I'm searching for standards, books, references, etc. explaining how steam jacketed piping shall be designed, manufactured and inspected. Do you have any suggestions? Regards, hcjulien

Hi, I'm searching for a good reference book explaning how to determine if both fixed tubesheet or associated shell will be overstressed because of the differential thermal expension of shell VS tubes and if the need of an expansion joints is necessary. Except the TEMA standard and UHX...

Hi, My customer wants to use Monel 400 material for a piping transporting 100% oxygen pressurized inside a pressure piping having walls at 350F. Do you see any issues? If yes, what are the references (standard, books, etc.) supporting your issues. Thanks in advance for your help. hcjulien

Hi, Our customer has a 6063-T6 aluminum pipe specification for the resin pellet transport asking that all pipe, elbow, etc. shall be shot peened inside (hammer finish). What are the advantages to do this kind of treatment? Also, what is the differences between mechanical or chemical to...

Hi, I'm searching for good books or references about piping hot taping. Except the API standard RP 2201 (API Recommended Practice 2201, Safe Hot Tapping Practices in the Petroleum & Petrochemical Industries, Fifth Edition), do you have other recommendations? Regards, hcjulien

Hi, according to you, can we grind flush longitudinal and circumferential butt weld after hydrostatic test according to UG-99(a)? Please take note that grinding will be done without affecting the required thickness of the shell. If yes, what are your references (standard, books, etc.)...