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See Chinese contents: Q/BQB 266-2018 Q/BQB 266-2018: Corrosion resistant 13Cr martensitic stainless steel tubing and casing
This Standard specifies the technical conditions for the delivery of corrosion resistant 13Cr martensitic stainless steel tubing and casing of Baoshan Iron and amp; Steel Co., Ltd. This Standard applies to the seamless tubing and casing for oil and gas environments containing CO2 in oil and gas production of the petroleum and natural gas industries. The tubing and casing steel grades in this Standard are: BG13Cr-110, BG13Cr-110U, BG13Cr-110S.
