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3103-H12 Aluminum

3103-H12 aluminum is 3103 aluminum in the H12 temper. To achieve this temper, the metal is strain hardened to a strength that is roughly a quarter of the way between annealed (O) and full-hard (H18). The graph bars on the material properties cards below compare 3103-H12 aluminum to: 3000-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

Brinell Hardness

36

Elastic (Young's, Tensile) Modulus

70 GPa 10 x 106 psi

Elongation at Break

9.7 %

Fatigue Strength

68 MPa 9.9 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.8 x 106 psi

Shear Strength

78 MPa 11 x 103 psi

Tensile Strength: Ultimate (UTS)

130 MPa 19 x 103 psi

Tensile Strength: Yield (Proof)

90 MPa 13 x 103 psi

Thermal Properties

Latent Heat of Fusion

400 J/g

Maximum Temperature: Mechanical

190 °C 380 °F

Melting Completion (Liquidus)

660 °C 1210 °F

Melting Onset (Solidus)

640 °C 1180 °F

Specific Heat Capacity

900 J/kg-K 0.21 BTU/lb-°F

Thermal Conductivity

160 W/m-K 93 BTU/h-ft-°F

Thermal Expansion

23 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

42 % IACS

Electrical Conductivity: Equal Weight (Specific)

140 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Density

2.8 g/cm3 170 lb/ft3

Embodied Carbon

8.2 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)

11 MJ/m3

Resilience: Unit (Modulus of Resilience)

58 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

50 points

Strength to Weight: Axial

13 points

Strength to Weight: Bending

21 points

Thermal Diffusivity

64 mm2/s

Thermal Shock Resistance

5.8 points

Alloy Composition

Aluminum (Al)Al 96.3 to 99.1
Manganese (Mn)Mn 0.9 to 1.5
Iron (Fe)Fe 0 to 0.7
Silicon (Si)Si 0 to 0.5
Magnesium (Mg)Mg 0 to 0.3
Zinc (Zn)Zn 0 to 0.2
Chromium (Cr)Cr 0 to 0.1
Titanium (Ti)Ti 0 to 0.1
Zirconium (Zr)Zr 0 to 0.1
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

Handbook of Aluminum Bonding Technology and Data, J. D. Minford, 1993

EN 754-2: Aluminium and aluminium alloys. Cold drawn rod/bar and tube. Mechanical properties

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

EN 485-2: Aluminium and aluminium alloys. Sheet, strip and plate. Mechanical properties

ASM Specialty Handbook: Aluminum and Aluminum Alloys, J. R. Davis (editor), 1993

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