Rule of thumb for weld strength in various metals?
Rule of thumb for weld strength in various metals?
(OP)
Hi All,
I’m curious if you have a general practical rule for estimating weld strengths in different metals.
Steel – Most of what I’ve heard says that a high quality weld is as strong as the base steel.
Aluminum – I’ve heard that quality weld strength is ~ 60% as strong as the base aluminum.
Stainless steel - ?
Titanium - ?
Thanks!
I’m curious if you have a general practical rule for estimating weld strengths in different metals.
Steel – Most of what I’ve heard says that a high quality weld is as strong as the base steel.
Aluminum – I’ve heard that quality weld strength is ~ 60% as strong as the base aluminum.
Stainless steel - ?
Titanium - ?
Thanks!





RE: Rule of thumb for weld strength in various metals?
In many cases, the aluminium around the weld has a yield strength of about 20% of the unwelded base material.
Any material that is heat treated or work hardened, loses strength when it is welded. Sometimes, it is practical to re-heat treat. Some times, it is not. I don't think re-work-hardening is feasible. There is no substitute for understanding metallurgy, and knowing something about the welding processes.
--
JHG
RE: Rule of thumb for weld strength in various metals?
In some cases, fatigue may enter into it to complicate the situation, also addressed in those various standards.
RE: Rule of thumb for weld strength in various metals?