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336.0 (formerly A332.0, LM13, SN122A, A03360) Cast Aluminum

336.0 aluminum is an aluminum alloy formulated for casting. 336.0 is the Aluminum Association (AA) designation for this material. LM13 is the British Standard (BS) designation. A03360 is the UNS number. Additionally, the SAE designation is 321. Older literature may refer to this material as A332.0 or ASTM SN122A.

It has a moderately low ductility among the ANSI/AA cast aluminums in the database.

The properties of 336.0 aluminum include two common variations. This page shows summary ranges across both of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare 336.0 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

110 to 130

Elastic (Young's, Tensile) Modulus

75 GPa 11 x 106 psi

Elongation at Break

0.5 %

Fatigue Strength

80 to 93 MPa 12 to 14 x 103 psi

Poisson's Ratio


Shear Modulus

28 GPa 4.1 x 106 psi

Shear Strength

190 to 250 MPa 28 to 36 x 103 psi

Tensile Strength: Ultimate (UTS)

250 to 320 MPa 36 to 46 x 103 psi

Tensile Strength: Yield (Proof)

190 to 300 MPa 28 to 43 x 103 psi

Thermal Properties

Latent Heat of Fusion

570 J/g

Maximum Temperature: Mechanical

210 °C 410 °F

Melting Completion (Liquidus)

570 °C 1060 °F

Melting Onset (Solidus)

540 °C 1010 °F

Specific Heat Capacity

890 J/kg-K 0.21 BTU/lb-°F

Thermal Conductivity

120 W/m-K 68 BTU/h-ft-°F

Thermal Expansion

19 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

29 % IACS

Electrical Conductivity: Equal Weight (Specific)

95 % IACS

Otherwise Unclassified Properties

Base Metal Price

11 % relative


2.8 g/cm3 170 lb/ft3

Embodied Carbon

7.9 kg CO2/kg material

Embodied Energy

140 MJ/kg 61 x 103 BTU/lb

Embodied Water

1010 L/kg 120 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

1.1 to 1.6 MJ/m3

Resilience: Unit (Modulus of Resilience)

250 to 580 kJ/m3

Stiffness to Weight: Axial

15 points

Stiffness to Weight: Bending

51 points

Strength to Weight: Axial

25 to 32 points

Strength to Weight: Bending

32 to 38 points

Thermal Diffusivity

48 mm2/s

Thermal Shock Resistance

12 to 16 points

Alloy Composition

Among cast aluminum alloys, the composition of 336.0 aluminum is notable for containing a comparatively high amount of silicon (Si). Silicon is used to improve casting fluidity and lower melting temperature. It also has a strengthening effect.

Aluminum (Al)Al 79.1 to 85.8
Silicon (Si)Si 11 to 13
Nickel (Ni)Ni 2.0 to 3.0
Copper (Cu)Cu 0.5 to 1.5
Magnesium (Mg)Mg 0.7 to 1.3
Iron (Fe)Fe 0 to 1.2
Manganese (Mn)Mn 0 to 0.35
Zinc (Zn)Zn 0 to 0.35
Titanium (Ti)Ti 0 to 0.25

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

Followup Questions

Similar Alloys

Further Reading

ASTM B108: Standard Specification for Aluminum-Alloy Permanent Mold Castings

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

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