Material for insulation support ring and lifting lug at low temperature service
Material for insulation support ring and lifting lug at low temperature service
(OP)
Dear all,
For operating temperature at (-)230 degF with SS construction, is it acceptable to use CS (SA-516-70)for the insulation support ring which is bolted to SS support clip ? Insulation is 9" thick.
Is it also ok to use CS lifting lug which is welded to SS pad ? We may not cut the lug after erection.
For operating temperature at (-)230 degF with SS construction, is it acceptable to use CS (SA-516-70)for the insulation support ring which is bolted to SS support clip ? Insulation is 9" thick.
Is it also ok to use CS lifting lug which is welded to SS pad ? We may not cut the lug after erection.





RE: Material for insulation support ring and lifting lug at low temperature service
RE: Material for insulation support ring and lifting lug at low temperature service
RE: Material for insulation support ring and lifting lug at low temperature service
Thanks,
Jay,
RE: Material for insulation support ring and lifting lug at low temperature service
The support ring will have slot holes bolted to SS support clip such that thermal contraction is not an issue. My concern is: will the CS material too brittle at that temperature such that it can not even take 20 psi bending stress ?
As for CS lifting lug, it is welded to SS poison pad, and I am expecting the weld between lug and pad may crack due to thermal contraction in operation. Is it a concern ?
RE: Material for insulation support ring and lifting lug at low temperature service