Hello experts,
As per clause 304.3.3 of ASME B 31.3 (Reinforcement of welded branch connections), Area A4 is the area of other metal provided by welds and properly attached reinforcement.
While calculating the weld area , the minimum value of tc=0.7 Tb or 6mm (1/4 in.) ,except that larger...
Dear Experts,
As you are aware that clause 302.3.5 (e) of ASME B 31.3 recommends the use of weld joint strength reduction factor "W" for design of longitudinal and spiral welded piping components. But for circumferential welds ( at butt ends weld joints) it has been put on shoulders of designer...
Dear Experts,
1. ASME B 13.4 and 16.5 do have tables for P-T ratings in imperial as well as metric unit. So can we take advantage of conversion factors. For example Table 2-3.4 of ASME B 16.5 (for group 3.4 materials) allows the maximum temperature till 475 deg C but parallely table II-2-3.4...
Hello Experts,
I need some clarification regarding the selection of bolting material between A193 and A320 specifically for stainless steel grades i.e B8,B8C,B8T,B8M etc.
Standard specifications A193 and A320 , are for alloy-steel and stainless steel bolting materials intended to be used in high...
API 934 A,B,C and D clarifies the impact and preventive actions for Temper Embrittlement for thick Low alloy steel (1.25Cr0.5Mo,2.25Cr0.5Mo etc..)vessels but i have never found anything for LAS pipes?
Does LAS pipes are not susceptible to Temper Embrittlement?
I believe "TE" is related to...
Dear all,
This code is explicitly developed for design, construction, operation and maintenance requirements for piping , pipelines, and distribution systems in hydrogen service.
Material performance factors have been included to account for the adverse effects of hydrogen gas on the mechanical...
Hydrogen Service
ASME 31.3 gives exemption from PWHT for P.No 1 (carbon steel piping material) irrespective of thickness with a clause of Preheating above 25mm nominal thickness . So still "carbon steel with PWHT" curve shall be applicable as per API RP 941 ?
If yes than will there be any...
