Aluminum 443.0 Sand Cast (F) Material Data Sheet

Aluminum 443.0 Sand Cast (F) Designation

443.0 (Aluminum Association)
Condition	F (As-fabricated)
UNS number	A04430

Aluminum 443.0 Sand Cast (F) Typical uses

General purpose alloy: pipe and marine fittings, tire molds

Aluminum 443.0 Sand Cast (F) Composition detail

Al (aluminum)	90.7	–	95.5	%
Cr (chromium)	0	–	0.25	%
Cu (copper)	0	–	0.6	%
Fe (iron)	0	–	0.8	%
Mg (magnesium)	0	–	0.05	%
Mn (manganese)	0	–	0.5	%
Si (silicon)	4.5	–	6	%
Ti (titanium)	0	–	0.25	%
Zn (zinc)	0	–	0.5	%
Other	0	–	0.35	%

Aluminum 443.0 Sand Cast (F) Physical properties

Density

2.66

–

2.71

g/cm³

Aluminum 443.0 Sand Cast (F) Mechanical properties

Young’s modulus	69.6	–	72.4	GPa
Specific stiffness	25.9	–	27	MN.m/kg
Yield strength (elastic limit)	52.3	–	57.8	MPa
Tensile strength	131	–	144	MPa
Specific strength	19.5	–	21.5	kN.m/kg
Elongation	8	–	9.6	% strain
Compressive strength	52.3	–	57.8	MPa
Flexural modulus	69.6	–	72.4	GPa
Flexural strength (modulus of rupture)	55	–	60.5	MPa
Shear modulus	26	–	27.4	GPa
Bulk modulus	65.2	–	74.5	GPa
Poisson’s ratio	0.322	–	0.338
Shape factor	42
Hardness – Vickers	59	–	65	HV
Elastic stored energy (springs)	19.3	–	23.5	kJ/m³
Fatigue strength at 10^7 cycles	49.5	–	60.5	MPa
Fatigue strength model (stress range) _{Parameters: Stress Ratio = -1, Number of Cycles = 1e7cycles}	47.8	–	62.6	MPa

Aluminum 443.0 Sand Cast (F) Impact & fracture properties

Fracture toughness	29.6	–	33	MPa.m^0.5
Toughness (G)	12.4	–	15.3	kJ/m²

Aluminum 443.0 Sand Cast (F) Thermal properties

Melting point	575	–	630	°C
Maximum service temperature	150	–	170	°C
Minimum service temperature	-273			°C
Thermal conductivity	143	–	163	W/m.°C
Specific heat capacity	944	–	982	J/kg.°C
Thermal expansion coefficient	21.7	–	22.2	µstrain/°C
Thermal shock resistance	33.4	–	37.3	°C
Thermal distortion resistance	6.5	–	7.42	MW/m
Latent heat of fusion	384	–	393	kJ/kg

Aluminum 443.0 Sand Cast (F) Electrical properties

Electrical resistivity	4.1	–	4.7	µohm.cm
Electrical conductivity	36.7	–	42.1	%IACS
Galvanic potential	-0.76	–	-0.68	V

Aluminum 443.0 Sand Cast (F) Magnetic properties

Magnetic type

Non-magnetic

Aluminum 443.0 Sand Cast (F) Optical, aesthetic and acoustic properties

Transparency	Opaque
Acoustic velocity	5090	–	5200	m/s
Mechanical loss coefficient (tan delta)	0.01	–	0.0113

Aluminum 443.0 Sand Cast (F) Processing properties

Metal casting	Excellent
Metal cold forming	Unsuitable
Metal hot forming	Unsuitable
Metal press forming	Unsuitable
Metal deep drawing	Unsuitable
Machining speed	140 m/min
Weldability _{Notes: Preheating is not required, post weld heat treatment is required}	Excellent

Aluminum 443.0 Sand Cast (F) Durability

Water (fresh)	Excellent
Water (salt)	Acceptable
Weak acids	Excellent
Strong acids	Excellent
Weak alkalis	Acceptable
Strong alkalis	Unacceptable
Organic solvents	Excellent
Oxidation at 500C	Unacceptable
UV radiation (sunlight)	Excellent
Galling resistance (adhesive wear) _{Notes: Aluminum alloys perform poorly when self-mated but can be processed without galling when mated with steels.}	Limited use
Flammability	Non-flammable

Aluminum 443.0 Sand Cast (F) Corrosion resistance

Stress corrosion cracking
_{Note: Rated in chloride; Other susceptible environments: Halide, water}

Slightly susceptible

Aluminum 443.0 Sand Cast (F) Notes

Aluminum 443.0 Sand Cast (F) Warning

Poor machinability, polishability and anodizing properties compared to other cast aluminum alloys

Aluminum 443.0 Sand Cast (F) Standards with similar compositions

Canada: S5 to CSA HA.10, S5 to CSA HA.9

USA: 443, 443 to ASTM B108, 443 to ASTM B26/B26M, 443 to ASTM B618, 443.1, 443.1 to ASTM B179, 443.2 to QQ A-371F, A24430 to SAE J452, A443.0, A443.1, B443.0, B443.0 to ASTM B108, B443.0 to ASTM B26/B26M, B443.0 to ASTM B618, B443.0 to QQ A-596, B443.1, B443.1 to ASTM B179, UNS A04430, UNS A04431, UNS A14430, UNS A14431, UNS A24430, UNS A24431

Tradenames: USCO A 443.1