GB/T 13820-1992 Magnesium alloy castings

GB/T 13820-2018 Magnesium alloy castings

ZB H24 004 HB 967 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 1177-1991 Casting magnesium alloys GB/T 1177-2018 Casting magnesium alloys GB/T 6060.1-1997 Roughness comparison specimens—Cast surfaces GB/T 6060.1-2018 Surface roughness comparison specimen—Part 1:Casting surface GB/T 6414-1999 Castings—System of dimensional tolerances and machining allowances GB/T 6414-2017 Castings—Dimensional tolerances and geometrical tolerances and machining allowances GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values HB 5462-1990 Magnesium alloy casting heat treatment HB/Z 61-1998

ASTM E155-1985