According to my copy of B31.3, which is only 2004 ed, Section 3 Table 323.2.2 if the material is listed in curves C & D no impact testing is required if you are using impact tested consumables according to AWS. The problem is A333 grade 6 is not assigned to a curve in Table A1 only a...
I am not sure about P265, but P295 is listed in ASME 2D. Its a basic carbon manganese presssure vessel steel with a minimum tensile strength of about 410N/mm2 with a yield stress of 265N/mm2.
According to the British Pressure vessel code PD5500:- P265 has a design strength of 176N/mm2, A516...
Why don't you make the vessels? You don't have to be approved to make vessels to the PED. You may need the services of a notifief body to inspect them, depending on there risk category.
You can get a free copy of the PED from http://www.dti.gov.uk/strd/ped.pdf
Regards
John www.gowelding.com
You normally push the puddle except for fluxed processes, such as FCAW, SMAW etc. which you must always drag otherwise you get slag in the form of wagon tracks.
The slag you drag !!
Regards
John www.gowelding.com
Not sure what an A500B is as I don’t have the spec. However if it were a normal weldable carbon manganese steel you would use a higher alloyed stainless filler wire such as a 309.
The problem is dilution, as you mix carbon steel with stainless steel you create a chrome steel which is very...
It’s not just ASME, you will find most codes have increased allowable stresses over the years. I suspect that ASME are trying to make their code competitive, so as to keep its lions share of the International market.
In fact, pressure vessel design stresses in Europe are fixed by law! under...
Slip on Flanges, because they are fillet welded are not suitable under fatigue conditions and for use at high temperature.
I think The British Pressure vessel code, PD5500, limits the maximum temperature for fillet welded flanges to about 370°C.
You can't do meaningful NDT on slip one...
The best way to control distortion is to reduce the amount of welding; use stitch weld instead of continues ones, if possible and use smaller sized welds where possible.
The problem with predicting distortion is that it is dependant on so many variables and it will occur in all three...
You first check FIG UCS-66, if you are above the graphs no impact testing is required. If you are below the graphs you can apply UCS-66.1, which may lift your temperature above the graphs in UCS-66 and relieve you of impact testing. However you don’t need to use UCS-66.1, you can ignore it and...
A certain country, renown for its pasta and fast cars, started exporting small air receivers with no corrosion allowance to the UK. The UK inspection authorities got together and said we are going to increase the frequency of inspection on these vessels because of the increase in risk. However...
