?Grade : ? ? ENAW-AlMg4.5Mn0.7 ? ??Number: ? ? ENAW-5083 ? ??Classification: ? ? Aluminium - 5000 series ( Magnesium Mg is major alloying element ) ? ??Standard: EN 573-3: 2009 Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products EN 755-2: 2008 Aluminium and aluminium alloys. Extruded rod/bar, tube and profiles. Mechanical properties EN 485-2: 2008 Aluminium and aluminium alloys. Sheet, strip and plate. Mechanical properties EN 754-2: 2008 Aluminium and aluminium alloys. Cold drawn rod/bar and tube. Mechanical properties EN 1592-2: 1998 Aluminium and aluminium alloys. HF seam welded tubes. Mechanical properties EN 603-2: 1997 Aluminium and aluminium alloys. Wrought forging stock. Mechanical properties EN 941: 1996 Aluminium and aluminium alloys. Circle and circle stock for general applications. Specifications EN 1386: 2007 Aluminium and aluminium alloys. Tread plate. Specifications EN 12392: 2000 Aluminium and aluminium alloys. Wrought products. Special requirements for products intended for the production of pressure equipment Chemical composition % of grade ENAW-AlMg4.5Mn0.7 ( ENAW-5083 ) Fe Si Mn Cr Ti Cu Mg Zn Others - max 0.4 max 0.4 0.4 - 1 0.05 - 0.25 max 0.15 max 0.1 4 - 4.9 max 0.25 each 0.05; total 0.15 Al - remainder Mechanical properties of grade ? ENAW-AlMg4.5Mn0.7 ? ( ENAW-5083 ) Rm?- Tensile strength (MPa) (H14) 340-400 Rm?- Tensile strength (MPa) (F) 260-270 Rm?- Tensile strength (MPa) (H112) 270 Rp0.2?0.2% proof strength (MPa) (H14) 280 Rp0.2?0.2% proof strength (MPa) (F) 100-110 Rp0.2?0.2% proof strength (MPa) (H112) 125 A?- Min. elongation at fracture (%) (F) 12 A?- Min. elongation at fracture (%) (H112) 12 A?- Min. elongation Lo = 50mm (%) (H14) 2月4日 A?- Min. elongation Lo = 50mm (%) (F) 10 A?- Min. elongation Lo = 50mm (%) (H112) 10 ? Brinell hardness ? (HBW): ? (F) 70 ? Brinell hardness ? (HBW): ? (H112) 70 ? Brinell hardness ? (HBW): ? (H14) 102