What problems can arise from welding 106B pipe using 8018B2 Filler without pre-heat or PWHT? Electrodes were also stored in open container for 4 months before use.
When we do socket weld valves we take them apart then weld them so we do not ruin the insides by getting them too hot. After the welds are cooled we simply re assemble them
We are welding 1 1/4 Cr 1/2 Mo pipe (SA335 P11) Everything I read tells me to use Low Hydrogen 80 series filler.
Another company started this job using 90 series filler under the theory that stronger is better and it was easier for the Welders to use. I was always taught that you should not use...