Pipe Material Markings
Pipe Material Markings
(OP)
I was looking at some material markings on pipe and fittings yesterday and noticed that both the ASTM and ASME specs were present. for example, the flange listed both A-105 and SA-105 (both were stamped into the flange). is this common practice these days?
thanks
Mark
thanks
Mark





RE: Pipe Material Markings
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RE: Pipe Material Markings
RE: Pipe Material Markings
ASME B16.5 Pipe Flanges and Flange Fittings standard covers pressure-temperature ratings, materials, dimensions, tolerances, marking, testing,
while ASTM A105B would cover one of the possibile materials that could be used to make the B16.5 flanges.
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RE: Pipe Material Markings
But you'd be better off specifying SA-105 for a flange on a Section VIII vessel versus an A-105 flange. Saves an argument...
Thus, it is beneficial to have both the ASTM material spec and ASME material spec marked on the component.
jt
RE: Pipe Material Markings
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RE: Pipe Material Markings
thanks again
Mark
RE: Pipe Material Markings
I don't think there's any additional documentation required for an SA-105 flange so there shouldn't be any difference in cost. A mill/material test report is not required.
jt
RE: Pipe Material Markings
In many cases the ASTM and ASME specs are exactly identical, but is some there are important differences. If you are doing Code work always make sure that you have the ASME.
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