Aluminum ADC12

Aluminum ADC12 (die-cast) strength, stiffness, density and thermal properties, with their source.

A bracket in Aluminum ADC12, as-cast finish.

Mechanical
Yield strength	one test result149MPa1
Ultimate tensile strength	one test result345MPa1
Elongation at break	one test result2.3%1
Young's modulus (stiffness)	standard value79.8GPa2
Density	measured2,680kg/m³3
Strength to weight	55.6kN·m/kg
Stiffness to weight	29.8MN·m/kg
Poisson's ratio	not sourced
Shear modulus	not sourced
Bulk modulus	not sourced
Speed of sound	5,457m/s

Stiffness against densityHigher and further left: stiffer for its weight

Strength against densityHigher and further left: stronger for its weight

Thermal
Thermal conductivity	125W/m·K3
Thermal expansion	measured21µm/m·K3
100 mm part over a 50 °C swing	105µm growth
Specific heat	measured911J/kg·K3
Heats up and cools (diffusivity)	51.2mm²/s
Thermal shock resistance	not sourced
Melting point	solidus-liquidus515–582°C3

Thermal conductivity against densityHigher and further left: spreads more heat for its weight

Thermal expansion against thermal conductivityLower and further right: warps less when heated

Sources3 documents: Daiki Aluminium Industry, S.S. Aluminum

Values for: Cast. JIS ADC12 (Al-Si-Cu, about A383 / EN AC-46100) high-pressure die-casting alloy, as cast; physical properties from Daiki Aluminium Industry (ADC12 ingot producer) measured values; modulus from S.S.Aluminum (ADC12 ingot producer) standard values.

1
NA Alloys Product DataDaiki Aluminium IndustryYield strength: one test result, 0.2% proof stress, as cast, ASTM tensile bar (Daiki)Ultimate tensile strength: one test result, as cast, ASTM tensile bar (Daiki)Elongation at break: one test result, as cast, ASTM tensile bar (Daiki)
2
Die-Casting Alloys (ダイカスト用合金)S.S. AluminumYoung's modulus (stiffness): standard value (S.S.Aluminum)
3
DIK365 Product DataDaiki Aluminium IndustryDensity: measured (Daiki)Thermal conductivity: measured on specimens cut from a 50 x 100 x 5 mm flat die casting (Daiki)Thermal expansion: measured, temperature range not stated (Daiki)Specific heat: measured (Daiki)Melting point: solidus-liquidus (Daiki)

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Thermal properties of Aluminum ADC12

Thermal conductivity of Aluminum ADC12

Aluminum ADC12 has a thermal conductivity of 125 W/m·K (72.2 BTU/hr·ft·°F). Basis: measured on specimens cut from a 50 x 100 x 5 mm flat die casting (Daiki). Source: Daiki Aluminium Industry, DIK365 Product Data.

Specific heat of Aluminum ADC12

The specific heat capacity of Aluminum ADC12 is 911 J/kg·K (0.218 BTU/lb·°F). Basis: measured (Daiki). Source: Daiki Aluminium Industry, DIK365 Product Data.

Coefficient of thermal expansion of Aluminum ADC12

Aluminum ADC12 expands 21 µm/m·K (11.7 µin/in·°F): a 100 mm part grows 105 µm over a 50 °C rise. Basis: measured, temperature range not stated (Daiki). Source: Daiki Aluminium Industry, DIK365 Product Data.

Thermal diffusivity of Aluminum ADC12

Computed from the conductivity, density and specific heat (k / ρc): 51.2 mm²/s, how fast a temperature change spreads through it.

Melting point of Aluminum ADC12

Aluminum ADC12 melts at 515–582 °C (959–1,080 °F). Basis: solidus-liquidus (Daiki). Source: Daiki Aluminium Industry, DIK365 Product Data.