Mr. Richard SHEN
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Mr. Richard SHEN
Torich International Limited--The Steel Tube Maker
Mr. Richard SHEN
Leave a messageDuplex Stainless Steel Tubes / Pipes, are made by Duplex stainless steels, can be both seamless and welded tubes.
Depending on different steel grade and diameter, and wall thickness of the Duplex Stainless Steel Tubes.
Duplex stainless steels are called [duplex" because they have a two-phase microstructure consisting of grains of ferritic and austenitic stainless steel.
The result is a microstructure of roughly 50% austenite and 50% ferrite.
Duplex stainless steels have a two-phase microstructure of austenite and ferrite grains.
The main differences in composition, when compared with an austenitic stainless steel is that the duplex steels have a higher chromium content, 20–28%; higher molybdenum, up to 5%; lower nickel, up to 9% and 0.05–0.50% nitrogen.
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