Aluminum Casting A03800 Alloy

Sep 13 2012

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties


Introduction

Aluminium / Aluminum alloys have high electrical conductivity and strong corrosion resistance. These alloys tend to lose some of their strength at high temperatures ranging between 200 and 250°C (392 and 482°F). However, they can gain strength at subzero temperatures, which makes them a suitable low-temperature alloy.

The following datasheet will provide more details about Aluminium / Aluminum casting A03800 alloy.

Chemical Composition

The following table shows the chemical composition of Aluminium / Aluminum casting A03800 alloy.

Element Content (%)
Aluminium / Aluminum, Al 79.6 - 89.5
Silicon, Si 7.50 - 9.50
Copper, Cu 3 - 4
Zinc, Zn 3
Iron, Fe 2
Nickel, Ni 0.50
Manganese, Mn 0.50
Tin, Sn 0.35
Magnesium, Mg 0.10
Other, total 0.50

Physical Properties

The following table shows the physical properties of Aluminium / Aluminum casting A03800 alloy.

Properties Metric Imperial
Density 2.76 g/cm3 0.0997 lb/in³

Mechanical Properties

The mechanical properties of Aluminium / Aluminum casting A03800 alloy are outlined in the following table.

Properties Metric Imperial
Tensile strength, ultimate 317 MPa 46000 psi
Tensile strength, yield (@0.2%) 159 MPa 23100 psi
Fatigue strength (@# of cycles 5.00e+8, notch status unknown, R.R. Moore test) 138 MPa 20000 psi
Shear strength 195 MPa 28300 psi
Modulus of elasticity 70-80 GPa 10153-11603 ksi
Shear modulus 26.5 GPa 3840 ksi
Poissons ratio 0.33 0.33
Elongation at break (in 50 mm) 2.50% 2.50%
Charpy impact 4.07 J 3.00 ft-lb
Hardness, Brinell 80 80
Machinability (0-100 Scale (100=best)) 50 50

Thermal Properties

The thermal properties of Aluminium / Aluminum casting A03800 alloy are given in the following table.

Properties Metric Imperial
Thermal expansion co-efficient (@20-100°C/68-212°F) 21.2 µm/m°C 11.8 µin/in°F
Thermal conductivity 109 W/mK 756 BTU in/hr.ft².°F

 

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