All,
Does anyone know why ASME VIII-1 puts a max temperature limit of 100F (38oC) on ASTM A320 B8M Class 1? Does this mean these bolts cannot be used in countries where temperatures can reach 40oC or where the black bulb temperature can reach much higher values?
Any thoughts on the correct...
All,
Apologies if this has been covered elsewhere but I could not find it,
I have an ASME VIII A516 Gr70 unlined vessel and have been requested to weld in some 316L internals (baffles, weirs). The internals are not pressure retaining. The internals and their connections are small relative to...
All,
I have a Flare Knock Out Drum with DT of 150oC but I have some steam coils coming into the boot of the vessel at 245oC. The temp of the fluid in the boot is not allowed to exceed 90oC before shut-off however the nozzle attached to the steam coil could theoretically reach 245oC.
What is...
All,
We were in the process of developing some pipe specs when we found numerous references to A105N material for use in forgings. Yet we couldn't find it on the ASTM website or ASME Codes (ASME IID, B31.3). There it is called A105. It probably means the forgings are normalised but what do...
All,
Can someone let me know where and when pipe stress isometrics are used? I can understand the benefit of manufacturing Iso's or even the odd stress iso here and there. However, is there ever a need to produce the stress iso's for a whole package/project?
Cheers,
JohnOD
All,
I have to do the Flange leakage/stress calcs for a bolted, metal-to-metal contact joint i.e. male/female flange with O-ring. My query is whether or not ASME VIII Div 1 App 1 caters for such an instance? Do I need to be concerned about Gasket Seating? I can see from Table 2-5.2 that a...
All,
I must find reference to help design a combined support and stiffener for a 4m diameter, 15m tall deaerator tower. The support/stiffener needs to support water/packing etc. up to 40,000kgs while acting as a stiffener to the 15mm thick vessel. The vessel needs to be designed for full...
Hi,
Does anyone have a definitive formula for calculating the 'Stiffness' of pipe supports for use in Caesaer II's restraint definition dialogue box ('Stif'.
I have used k=EA/(L^3)in the past for bending stiffness but don't know full history of this and it doesn't ring true for Major and Minor...
All,
Is it possible to get the specific Flange loading at joints in piping system from CII to use for comparison with Allowables?
Any thoughts appreciated,
Cheers,
JOD
ALL,
I need to a basic fatigue analysis on Vessel nozzles using PD5500 using SN curves. Do I start with the Stress range, Sr, and then get the no. of cycles or do I calculate the no. of cycles and then get the allowable stress range from the curve?
Ultimately I require a suitable thickness of...
How do I calculate the allowable stress of a particular material that is not listed within ASME B31.3 or ASME IID.
I am particularly interested in ASTM A350 LF6 Cl.2 @ 210F.
Can anyone please help.
