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Alloy Digest (1994) 43 (7): SS-570.
Published: 01 July 1994
... SUMITOMO DP3 is a duplex steel with 25 chromium to resist the oil country tubular goods environments of hydrogen sulfide, chlorides and carbon dioxide. The higher alloying also produces higher strengths and more resistance to chloride stress-corrosion cracking than 22 chromium duplex stainless...