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6351-H111 Aluminum

6351-H111 aluminum is 6351 aluminum in the H111 temper. To achieve this temper, the metal is strain hardened to a strength that is lower than what is permissible for H11 (1/8-hard). The graph bars on the material properties cards below compare 6351-H111 aluminum to: 6000-series alloys (top), all aluminum alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Elastic (Young's, Tensile) Modulus

69 GPa 10 x 106 psi

Elongation at Break

16 %

Fatigue Strength

82 MPa 12 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.8 x 106 psi

Shear Strength

84 MPa 12 x 103 psi

Tensile Strength: Ultimate (UTS)

140 MPa 20 x 103 psi

Tensile Strength: Yield (Proof)

97 MPa 14 x 103 psi

Thermal Properties

Latent Heat of Fusion

410 J/g

Maximum Temperature: Mechanical

160 °C 320 °F

Melting Completion (Liquidus)

650 °C 1200 °F

Melting Onset (Solidus)

570 °C 1060 °F

Specific Heat Capacity

900 J/kg-K 0.21 BTU/lb-°F

Thermal Conductivity

180 W/m-K 100 BTU/h-ft-°F

Thermal Expansion

23 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

46 % IACS

Electrical Conductivity: Equal Weight (Specific)

150 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Density

2.7 g/cm3 170 lb/ft3

Embodied Carbon

8.3 kg CO2/kg material

Embodied Energy

150 MJ/kg 66 x 103 BTU/lb

Embodied Water

1180 L/kg 140 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

20 MJ/m3

Resilience: Unit (Modulus of Resilience)

68 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

50 points

Strength to Weight: Axial

14 points

Strength to Weight: Bending

22 points

Thermal Diffusivity

72 mm2/s

Thermal Shock Resistance

6.1 points

Alloy Composition

Aluminum (Al)Al 96 to 98.5
Silicon (Si)Si 0.7 to 1.3
Manganese (Mn)Mn 0.4 to 0.8
Magnesium (Mg)Mg 0.4 to 0.8
Iron (Fe)Fe 0 to 0.5
Titanium (Ti)Ti 0 to 0.2
Zinc (Zn)Zn 0 to 0.2
Copper (Cu)Cu 0 to 0.1
Residualsres. 0 to 0.15

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Further Reading

ASTM B221: Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

EN 755-2: Aluminium and aluminium alloys. Extruded rod/bar, tube and profiles. Mechanical properties

Aluminum Standards and Data, Aluminum Association Inc., 2013

EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products

Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993