ssc-452 aluminum structure design and fabrication guide ship

Aluminum Marine Structure Guide
were available. Additional data, including welded ultimate strength, on other alloys is available
in the references for Table 2-8.
Table 2-8 Yield Strength of Welded Aluminum Alloys (MPa, ksi)
Alloy Type 1 ALCAN 6 US Navy 7
Source
ABS 2 DnV 3 Aluminum AWS Hull
Association 4 Welding 5
5052-H32, H34 65 (9.5) 90 (13)
5086-O E 92 (13) 95 (14) 97 (14)
5086-H32 P 131 (19) 92 95 (14) 131 (19) 152 (22)
5086-H111 E 124 (18) 92 95 (14) 124 (18) 110 (16)
5086-H116 P 131 (19) 92 95 (14) 131 (19) 152 (22)
5083-H111 E 145 (21) 110 (16) 145 (21)
5083-H116 P 165 (24) 116 8 (17) 115 (18) 165 (24) 9 125 (18)
5383-H111 E 145 (21) 145 (21)
5383-H116 P 145 (21) 140 (20) 145 (21)
5059-H111 E
5059-H116 P
5454-H111 E 110 (16) 76 (11) 85 (12) 110 (16) 110 (16)
5454-H34 P 110 (16) 76 (11) 85 (12) 110 (16) 110 (16)
5454-H32 P 110 (16) 76 (11) 85 (12) 110 (16)
5456-H111 E 165 (24) 165 (24) 145 (21)
5456-H116 P 179 (26) 125 (19) 179 (26) 179 (26)
6061-T6 10 E, P 138 (20) 105 (15) 105 (15) 138 (20)
6061-T6 E, P 103 (15) 105 (15) 80 (11) 103 (15)
1. E = Extrusion, P = Plate
2. Rules for Materials and Welding, Part 2, Aluminum and Fiber Reinforced Plastics, Chapter 5, Appendix 1,
Table 2, American Bureau of Shipping
3. Det Norske Veritas, Rules for Classification of High Speed, Light Craft and Naval Surface Craft, Part 3,
Chapter 3, Section 2, Table B4. Yield strength determined from the values of f 1 published by the equation
1 = f 1 x 240 / 1.1.
4. Aluminum Design Manual, Table 3.3-2, The Aluminum Association, Arlington, Virginia. Based on 50 mm
(2 in.) gauge length
5. Guide for Aluminum Hull Welding, AWS D3.7, American Welding Society, 2004. Based on 250 mm (10
in.) gauge length
6. Aluminium and the Sea, ALCAN, Paris, 2004.
7. A Guide for the Use of Aluminum Alloys in Naval Ship Construction and Design, Volume II, Table 4.1,
David W. Taylor Naval Ship Research and Development Center, DTNSRDC 84/015, 1984.
8. Thickness ≤ 9.5 mm (0.275 in.)
9. 5083-H321 Plate, thickness ≤ 38 mm (1.5 in.)
10. Welded with 5356 filler.
Collette (2005) made an analysis of the tensile strength of the strength of welded aluminum.
He analyzed panels of 5083-H116 and 6082-T6 considering the stress-strain curves of the base
metals and of the heat-affected zone (HAZ) of the welds. Each panel was 1 meter long and 0.3
meters wide, and the HAZ was estimated as being either 12.5 mm or 25 mm wide. The results
from analysis of the model are shown in Figure 2-7, where the initial stress-strain curve has been
offset by 0.2 percent to suit the definition of yield strength.
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