Dear Novus
I suggest than You can found an answer in ANSI/AWS D14.1 Specification for welding of industrial and mill Cranes and other material handling equipment.This code It is recommended by Crane manufactures Association of America CMMA 74 or ANSI/ASME B30.11 Monarails and Underhung Cranes...
Dear Engr
You can Consulting API 1104 last edition or API 1107
If this Fitting It works only as Sleeve Encirclement you use backing plate External only with Fillet Weld.If this Works as Tee Encirclement it is neccesary to warranty full penetation but you can use backing pkate in order to evit...
You can consulting "the procedure hanbook of arc welding " the lincoln electric, section 12.1 Estimating welding costs or Welding hanbook volume 5 Seventh edition of AWS section 3 Economics and costs estimating.
I hope you can found a answer to your Quetion.
Very lucky.
Regards...
I recommend than you to consult the Welding Handbook volumen 2 (welding processes of AWS ).I think you can found some answers for this question.
Regards
Jorge
Dear sirs
If You need more information about this subject.You can consult The Standard ANSI/ASME B36.10 for C.S, and 36.11 for S.S.
Table For schedule, wall thicness, weight of Pipes for each nominal diameter.
Regards
jorge@tecnicontrol.com.co
Dear colleggue
You ca review on ASME secc VIII Div 1 or 2 for the new vessels . When this in service Checking codes NBIC NB-23 and API 510.The pressure of design which is?
Regards
jorge@tecnicontrol.com.co
Dear Collegue
You can consult more about this subject in a Specifications NACE MR 0175 & Looking in the complete set of RP Nace.
Regards
Jorge@tecnicontrol.com.co
Dear collegue
It is very common use with C,S, Shielded Gas as CO2 and Diameters Wires 0.035 & .045" .with S.S use Ar or Ar+02and the same Diameters.
Regards
Tecnico1948
My e-mail jorge@tecnicontrol.co.co
Dear Sr
You can consulting the ANSI B31.G You can To calculate the MAOP Or Stress remaining for Deep of pitting or length of corrosion.
Regards
Jorge
jorge@tecnicontrol.com.co