GB/T 18705-2002 Welded stainless steel pipes for decoration

YB/T 5363-2006 Welded stainless steel pipes for decoration

GB/T 6397 GB/T 222-1984 Method of sampling steel for determination of chemical composition and permissible variations for product analysis GB/T 222-2006 Permissible tolerances for chemical composition of steel products GB/T 228-2002 Metallic materials—Tensile testing at ambient temperature GB/T 228.1-2010 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 228.1-2021 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 228.2-2015 Metallic materials—Tensile testing—Part 2:Method of test at elevated temperature GB/T 228.3-2019 Metallic materials—Tensile testing—Part 3:Method of test at low temperature GB/T 228.4-2019 Metallic materials—Tensile testing—Part 4:Method of test in liquid helium GB/T 242-1997 Metallic materials—Tube—Drift expanding test GB/T 242-2007 Metal materials—Tube—Drift-expending test GB/T 244-1997 Metallic materials—Tube—Bend test GB/T 244-2008 Metallic materials-tube—Bend test GB/T 244-2020 Metallic materials—Tube—Bend test method GB/T 246-1997 Metallic materials—Tube—Flattening test GB/T 246-2007 Metal materials—Tube—Flattening test GB/T 246-2017 Metallic materials—Tube—Flattening test GB/T 1220-1992 Stainless steel bars GB/T 1220-2007 Stainless steel bars GB/T 2102-1988 Acceptance, packing, marking, and certification of pipe GB/T 2102-2006 Acceptance, packing, marking and quality certification of steel pipe GB/T 2102-2022 Acceptance,packaging,marking and quality certification for steel tubular products GB/T 2975-1998 Steel and steel products—Location and preparation of test pieces for mechanical testing GB/T 2975-2018 Steel and steel products—Location and preparation of samples and test pieces for mechanical testing GB/T 4239-1991 Cold rolled stainless steel and heatresisting steel strips GB/T 222-2025 Steels and alloys—Permissible deviations of product analyzed chemical composition