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
0.33
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
Density
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.
| Al | 79.1 to 85.8 | |
| Si | 11 to 13 | |
| Ni | 2.0 to 3.0 | |
| Cu | 0.5 to 1.5 | |
| Mg | 0.7 to 1.3 | |
| Fe | 0 to 1.2 | |
| Mn | 0 to 0.35 | |
| Zn | 0 to 0.35 | |
| 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