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6151-T6 Aluminum

6151-T6 aluminum is 6151 aluminum in the T6 temper. To achieve this temper, the metal is solution heat-treated and artificially aged until it meets standard mechanical property requirements. The graph bars on the material properties cards below compare 6151-T6 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

Brinell Hardness

100

Elastic (Young's, Tensile) Modulus

69 GPa 10 x 106 psi

Elongation at Break

5.7 %

Fatigue Strength

100 MPa 15 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.8 x 106 psi

Shear Strength

200 MPa 29 x 103 psi

Tensile Strength: Ultimate (UTS)

340 MPa 49 x 103 psi

Tensile Strength: Yield (Proof)

280 MPa 41 x 103 psi

Thermal Properties

Latent Heat of Fusion

410 J/g

Maximum Temperature: Mechanical

170 °C 340 °F

Melting Completion (Liquidus)

650 °C 1200 °F

Melting Onset (Solidus)

590 °C 1090 °F

Specific Heat Capacity

900 J/kg-K 0.21 BTU/lb-°F

Thermal Conductivity

170 W/m-K 100 BTU/h-ft-°F

Thermal Expansion

23 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

45 % 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

8.2 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)

18 MJ/m3

Resilience: Unit (Modulus of Resilience)

580 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

50 points

Strength to Weight: Axial

34 points

Strength to Weight: Bending

39 points

Thermal Diffusivity

70 mm2/s

Thermal Shock Resistance

15 points

Alloy Composition

Aluminum (Al)Al 95.6 to 98.8
Silicon (Si)Si 0.6 to 1.2
Magnesium (Mg)Mg 0.45 to 0.8
Iron (Fe)Fe 0 to 1.0
Chromium (Cr)Cr 0.15 to 0.35
Copper (Cu)Cu 0 to 0.35
Zinc (Zn)Zn 0 to 0.25
Manganese (Mn)Mn 0 to 0.2
Titanium (Ti)Ti 0 to 0.15
Residualsres. 0 to 0.15

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

Followup Questions

Further Reading

ASTM B247: Standard Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings

Iron in Aluminium Alloys: Impurity and Alloying Element, N. A. Belov et al., 2002

Aluminum Standards and Data, Aluminum Association Inc., 2013

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