What is the difference in specification of following pipe
stand for
1 seamless pipe 200nb material SA355,P22,SCH80
AND
2 SEAMLESS PIPE 200NB,SA335,P11,SCH80



What is the difference in specification of following pipe stand for 1 seamless pipe 200nb materia..

Answer / s.n mohapatra

P22 material has 2.25% Cr& 1.0% Mo whereas P11 has 1.0% Cr & 0.5%Mo content in it.The former ,therefore,is able it to withstand higher temperature.

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