Working normalized plate
Working normalized plate
(OP)
What affect does rolling normalized 516-70 plate have on the grain structure. Will this practice defeat the purpose of normalization.
The case in point is rolling 1" thick plate to an ID of 36" to create a wear pad for a pipe (AKA pipe saddles or repads). The finished wear pad would have an arc of 120 degrees and a length of about 18".
If rolling is acceptable would we want to roll the wear pad in the same direction as the plate was rolled?
From a chemical composition point of view is 516-70 a good match for 36" x 1" Wall API-5L-B pipe.
The case in point is rolling 1" thick plate to an ID of 36" to create a wear pad for a pipe (AKA pipe saddles or repads). The finished wear pad would have an arc of 120 degrees and a length of about 18".
If rolling is acceptable would we want to roll the wear pad in the same direction as the plate was rolled?
From a chemical composition point of view is 516-70 a good match for 36" x 1" Wall API-5L-B pipe.





RE: Working normalized plate
The grain structure will be altered because of the forming operation (cold working to roll form the plate). However, this effect will not result in lower mechanical properties. The cold forming will affect toughness, which in this case would require a re-normalization heat treatment. You need to determine if low temperature service is a requirement for this formed plate.
RE: Working normalized plate
yes.