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P11 and P12 Pipes

Explain difference between the P11 and P12 Pipes?

E

Expert

Verified

a) P11 chromium molybdenum composition which is 1% of chromium and 1/4% of molybdenum.

b) P12 chromium molybdenum composition which is 1% of the chromium and 2% of the molybdenum.

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