metengr & DVWE,
I have my welding supplier looking to see if our weld wire meets the H4 specifications.
With the use of a "low hydrogen electrode" the DHT can be omitted, how about the PWHT?
Thanks,
sbrunette
Hello,
I am having a hard time finding out the proper technique of welding 4140 in the annealed state to a A500B structural tube. The 4140 shaft (2.375" dia.) runs through the tubing center (4.5" outer dia-with a 2.5" center dia.) the 4140 shaft sticks out either side of the tubing, a 5/8" weld...