flame straightening of 304 ss
flame straightening of 304 ss
(OP)
Hello,
I need to heat a 304 ss L channel, that was warped due to welding, so that it could be straightened. I am not worried about the issue of carbides formation (intergranular corrosion) as much as sigma phase transformation. The heating temperature will be greater than 800 degrees C (the channel will glow red!) for about 15 minutes. Do you think sigma will occur? Thanks.
I need to heat a 304 ss L channel, that was warped due to welding, so that it could be straightened. I am not worried about the issue of carbides formation (intergranular corrosion) as much as sigma phase transformation. The heating temperature will be greater than 800 degrees C (the channel will glow red!) for about 15 minutes. Do you think sigma will occur? Thanks.





RE: flame straightening of 304 ss
Check around and see if you can find someone familiar with straightening SS with a torch and water hose or a few weld placed weld beads.
I personally can move SS all over the place with a torch and hose, only if it hasn't been welded on. If its been welded on such as roll or pipe it takes a little experimentation and still the results aren't guaranteed.