Structural Bolt for High Temperature Lug Support
Structural Bolt for High Temperature Lug Support
(OP)
As previous project experience, I have used "SA-307-B or SA-325 bolts" for supporting the equipment lug on the structure.
Now I have a high temperature heat exchanger with design 565 deg C (operating 530 deg C).
In such high temperature lug, Is SA-307-B is still acceptable or should I need to consider the stainless steel setting bolt material because of high temperature?
Thank you in advance
Now I have a high temperature heat exchanger with design 565 deg C (operating 530 deg C).
In such high temperature lug, Is SA-307-B is still acceptable or should I need to consider the stainless steel setting bolt material because of high temperature?
Thank you in advance
RE: Structural Bolt for High Temperature Lug Support
ASTM A-325 has been withdrawn and replaced by ASTM F3125.
Why do you need them to SA if theyre used on lugs?
RE: Structural Bolt for High Temperature Lug Support
RE: Structural Bolt for High Temperature Lug Support
MJCronin
Sr. Process Engineer
RE: Structural Bolt for High Temperature Lug Support
@XL83NL
Thanks for informing A-325 is replaced by ASTM F3125. SA is not mandatory for support bolts, so I would just go with ASTM grade.
Regarding your reply, I know the equipment design temp. But it was difficult to exactly determine the actual temperature at lug. So I was asked by client to be conservative and to use the maximum temperature 565 deg C.
@mrfailure,
ASTM A193 B16 can be a good option as you suggest for this high temp
@MJCronin
I am attaching the equipment picture with design details as requested
RE: Structural Bolt for High Temperature Lug Support
https://www.eng-tips.com/viewthread.cfm?qid=279402
MJCronin
Sr. Process Engineer
RE: Structural Bolt for High Temperature Lug Support
The information on the linked threads is useful.Thank you.
I am contacting my vendor for the stainless steel bolt <<ASTM A 193 Grade B8>> for high temp