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Alloy & Temper Specifications...

Extrusion Tempers
O Fully Annealed
T1 Cooled from an elevated temperature and naturally aged.
T4 Solution heat-treated and naturally aged.
T5 Cooled from an elevated temperature and artificially aged.
T6 Solution heat-treated and artificially aged.
T61 Solution heat-treated and artificially aged. 
Mechanical Property Limits
Alloy & Temper Spec. Diameter or Thickness In. Webster Tensile Strength - ksi Elongation



Ultimate
Yield




Min. Max. Min. Max.
6063-0 All 0 19

18
6063-T1 Up thru .500 1 to 5 17
9
12

.501-1.000
16
8
12
6063-T4 Up thru .500 3 to 7 19
10
14

.501-1.000
18
9
14
6063-T5 Up thru .500 7 or better 22
16
8

.501-1.000
21
15
8
6063-T52 Up thru 1.000 7 to 11 22 30 16 25 8
6063-T6 Up thru 0.124 12 or better 30
25
8

.125-1.000
30
25
10
6005-T1 Up thru .500 7 or better 25
15
16
6005-T5 Up thru 0.124 15 or better 38
35
8

.125-1.000
38
35
10
6005A-T1 Up thru .249 5 or better 25   14.5   15
6005A-T5 Up thru .249 15 or better 38   31   7
  .250-.999   38   31   9
6005A-T61 Up thru .249 15 or better 38   35   8
  .250-1.00   38   35   10
6061-T1 Up thru .625 9 or better 26
14
16
6061-T4 All 9 or better 26
16
16
6061-T6 Up thru .249 15 or better 38
35
8

.250 and over
38
35
10
6105-T1 Up thru .500 1 to 5 25
15
16
6105-T5 Up thru .500 15 or better 38
35
8
6063 Alloy Specification Other
SI FE CU MN MG CR ZN TI Each Total Aluminum Content
.20-.6 .35 .10 .10 .45-.9 .10 .10 .10 .05 .15 Remainder
See Footnotes Below

6005 Alloy Specification Other
SI FE CU MN MG CR ZN TI Each Total Aluminum Content
.60-.90 .35 .10 .10 .40-.6 .10 .10 .10 .05 .15 Remainder
See Footnotes Below
6005A Alloy Specification              Other  
SI FE CU MN MG CR Each Total Aluminum Content
.50-.90 .35 .30 .50 .40-.70 .30 .05 .15 Remainder
See Footnotes Below                
6061 Alloy Specification                 Other  
SI FE CU MN MG CR ZN TI Each Total Aluminum Content
.40-.80 .70 .15-.40 .15 .80-1.2 .04-.35 .25 .15 .05 .15 Remainder
See Footnotes Below                    
6105 Alloy Specification                 Other  
SI FE CU MN MG CR ZN TI Each Total Aluminum Content
.60-1.0 .35 .10 .15 .45-.80 .10 .10 .10 .05 .15 Remainder
See Footnotes Below                    
  • SI - Silicon
  • FE - Iron
  • CU - Copper
  • MN - Manganese
  • MG - Magnesium
  • CR - Chromium
  • ZN - Zinc
  • TI - Titanium
  • All compositions in percent maximum unless shown as a range or a minimum.