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A360.0 (SG100A, A13600) Cast Aluminum

A360.0 aluminum is an aluminum alloy formulated for casting. A360.0 is the Aluminum Association (AA) designation for this material. A13600 is the UNS number. Additionally, the SAE designation is 309. The British Standard (BS) designation is LM9. And the AFNOR (French) designation is A-S10G. Older literature may refer to this material as ASTM SG100A, but this is now discouraged.

The properties of A360.0 aluminum include three common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare A360.0 aluminum to: ANSI/AA cast aluminums (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

75

Elastic (Young's, Tensile) Modulus

72 GPa 10 x 106 psi

Elongation at Break

1.6 to 5.0 %

Fatigue Strength

82 to 150 MPa 12 to 22 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

27 GPa 3.9 x 106 psi

Shear Strength

180 MPa 26 x 103 psi

Tensile Strength: Ultimate (UTS)

180 to 320 MPa 26 to 46 x 103 psi

Tensile Strength: Yield (Proof)

170 to 260 MPa 24 to 38 x 103 psi

Thermal Properties

Latent Heat of Fusion

530 J/g

Maximum Temperature: Mechanical

170 °C 340 °F

Melting Completion (Liquidus)

680 °C 1250 °F

Melting Onset (Solidus)

590 °C 1100 °F

Specific Heat Capacity

900 J/kg-K 0.21 BTU/lb-°F

Thermal Conductivity

110 W/m-K 65 BTU/h-ft-°F

Thermal Expansion

21 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

30 % IACS

Electrical Conductivity: Equal Weight (Specific)

100 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Calomel Potential

-700 mV

Density

2.6 g/cm3 160 lb/ft3

Embodied Carbon

7.8 kg CO2/kg material

Embodied Energy

150 MJ/kg 62 x 103 BTU/lb

Embodied Water

1070 L/kg 130 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

4.6 to 13 MJ/m3

Resilience: Unit (Modulus of Resilience)

190 to 470 kJ/m3

Stiffness to Weight: Axial

15 points

Stiffness to Weight: Bending

53 points

Strength to Weight: Axial

19 to 34 points

Strength to Weight: Bending

27 to 39 points

Thermal Diffusivity

48 mm2/s

Thermal Shock Resistance

8.5 to 15 points

Alloy Composition

Among cast aluminum alloys, the composition of A360.0 aluminum is notable for containing a comparatively high amount of silicon (Si) and including tin (Sn). Silicon is used to improve casting fluidity and lower melting temperature. It also has a strengthening effect. Tin is used to increase bearing properties at the cost of a decrease in corrosion resistance.

Aluminum (Al) 85.8 to 90.6
Silicon (Si) 9.0 to 10
Iron (Fe) 0 to 1.3
Magnesium (Mg) 0.4 to 0.6
Copper (Cu) 0 to 0.6
Nickel (Ni) 0 to 0.5
Zinc (Zn) 0 to 0.5
Manganese (Mn) 0 to 0.35
Tin (Sn) 0 to 0.15
Residuals 0 to 0.25

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

Followup Questions

Similar Alloys

Further Reading

ASTM B85: Standard Specification for Aluminum-Alloy Die Castings

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

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