Q. What is the difference between super duplex steel pipe and duplex steel pipe?

Answer

The basic difference between super duplex steel pipe and duplex steel pipe is the amount of combination of molybdenum and chromium content present in both. Super duplex steel contain 24% to 26% chromium, 4% molybdenum & 7% nickel, where duplex steel contain 19% to 32% chromium, 3% molybdenum & 5% - 6% nickel.

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