ratio for consumption of different sizes of welding electrodes

[afrozsh...@gmail.com]

Dear All,

What is the thumb rule to consider consumption ratio if different sizes of electrodes (2.5,3.15 & 4mm) for structural works of different thickness

I am considering 2.5 mm with 25% consumption, 3.15 mm with 50 % consumption & 4 mm with 25% consumption , is it ok?

Regards,

Afroz Shaikh