[MW:19933] Welding consumable for A516 Gr.70 (Storage Tank) and PWHT issues

Hello everyone,

i want to know which welding consumables is the giving a best performance for A516 Gr.70 mat. for storage tank.

Storage tank is not API 650 tank, out of the standard. it will use for pulmp and paper industry.

So i decided and checked of all the standards.this is my selections;

For SMAW : E7018-1

For SAW : EM12 wire (wire brand will choose another time), Lincoln 860/ F7A2 flux.

i am wondering ,EM12K wire with 860/f7a2 flux is a good choose ?

another question;

this is not API 650 tank so some of tank has a 30-40 mm first shell course and 75 mm annular plate. is the PWHT necessary for this tank's thicher plates? if necessary ; how i can decide and chech which standards.i cant find any information at ASME SEC. IX, AWS D1.1 etc..

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