Gray Cast Iron A126B Maximum Allowable Stress
Gray Cast Iron A126B Maximum Allowable Stress
(OP)
Hi everyone,
Where can I find the maximum allowable stress values of A126B in order to justify the desing calculation of valve body wall thickness and flange thickness?
According to ASME B16.1 this is the cast iron which has to be used for flange fitting but, on the other hand, there is no mention of it neither in ASME VIII Div. 1 Table UCI-23 nor in ASME II Part D.
Thanks in advance.
Where can I find the maximum allowable stress values of A126B in order to justify the desing calculation of valve body wall thickness and flange thickness?
According to ASME B16.1 this is the cast iron which has to be used for flange fitting but, on the other hand, there is no mention of it neither in ASME VIII Div. 1 Table UCI-23 nor in ASME II Part D.
Thanks in advance.





RE: Gray Cast Iron A126B Maximum Allowable Stress
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RE: Gray Cast Iron A126B Maximum Allowable Stress
Thanks!
RE: Gray Cast Iron A126B Maximum Allowable Stress
ASME Piping Code and ASME Reference Standards have their own standards committee's and can do as they please. For the example you cited, ASME B16.1 determines acceptable materials and provides pressure temperature ratings. However, there are no stress lines because the design of these standard components is proven by either FEM or burst testing by a vendor.