steris
Mechanical
- Nov 7, 2007
- 171
Hi All,
While working to cut costs on our steam boilers, I noticed that we were using SA-106B seamless pipe as our boiler shell. This is significantly more expensive than welded SA-53 E/B pipe. According to the stress tables in Section II Part D, they are both able to take the same stress at the same temperatures. Additionally, both specifications reference SA-530B, so the base material is the same. The only difference appears to be the fabrication methods and testing requirements. Our boilers operate at 100 psi 328F so high temperature limits are not a concern.
Is there anything that I should be wary of? Is this a straight 1 for 1 replacement or is there more homework that I need to do? Any advise or assistance would be greatly appreciated!
Thank you very much!
-Steris
While working to cut costs on our steam boilers, I noticed that we were using SA-106B seamless pipe as our boiler shell. This is significantly more expensive than welded SA-53 E/B pipe. According to the stress tables in Section II Part D, they are both able to take the same stress at the same temperatures. Additionally, both specifications reference SA-530B, so the base material is the same. The only difference appears to be the fabrication methods and testing requirements. Our boilers operate at 100 psi 328F so high temperature limits are not a concern.
Is there anything that I should be wary of? Is this a straight 1 for 1 replacement or is there more homework that I need to do? Any advise or assistance would be greatly appreciated!
Thank you very much!
-Steris