Transcription of LUMINIUM SUMMARY OF GRADES - Global Metals
1 ALUMINIUM SUMMARY OF GRADES . CHEMICAL COMPOSITION LIMITS % MECHANICAL PROPERTIES. Tensile Yield Elongation *Corrosion *Machining grade & Strength Strength A5 min. Resistance DESCRIPTION &. TEMPERING Thickness >25mm >25mm %. AL % Si % Fe % Cu Mn Mg Cr Zn Ti Others TYPICAL APPLICATIONS. mm Mpa Mpa Min Min. Free machining aluminium alloy due See Min REM - - - - - - - to the additions of lead and bismuth. Note Round Applications requiring high machining 2011-T4 ALL. 275 125 14 D,D A,A such as gears, machine parts and screw machining products not Max - - - - - - requiring decorative finishings. Highest strength alloy among non- Round Min REM - - - - - - 6-40.
2 275 125 10 A,C C,B heat treatable alloys. Good resistance to corrosion. Used in 5083-H112 shipbuilding, drilling rigs, general Plate engineering and transport Max - - 270 115 10 A,C C,B not be used 40-75 temperatures above 65C. 6061 is heat treatable, structural alloy Min REM - - - - - Round with medium strength and 6061-T6 ALL. 260 240 8 B,B B,C. extrudability. It is easily weldable and Max - - has good corrosion resistance. Highest strength in heat treatable Min REM - - - - - alloys due to tight micro-structural control. Adequate machinability and Round improved stress corrosion control. 7075-T6 ALL. 77 Ksi 66 Ksi 7 C,C D,B Used for highly stressed structural parts & is excellent for drop drilling, Max.
3 - - good tool wear and differientiated thread rolling. Note: 2011 others Bi Pb Relative ratings in decreasing order of merit = A B C D (Where A=Highest). Two ratings AC are for annealed & hardest tempers. GRADES are stocked with differing tempering Used as examples only for Mechanical Properties. DISCLAIMER: This specification is for information purposes only. Global Metals takes no responsibility for the suitability of the steels referred to in this specification without prior notification. Global Metals takes no responsibility for any errors1 or omissions, or for any consequences resulting from its use.
