Aluminium / Aluminum 3105 Alloy (UNS A93015)

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Fabrication and Heat Treatment
    Machinability
    Forming
    Welding
    Heat Treatment
    Forging
    Hot working
    Cold Working
    Annealing
    Hardening
Applications

Introduction

Aluminium / Aluminum alloys have high strength at subzero temperatures. They also have high ductility. Aluminium / Aluminum 3105 alloy is 98% pure Aluminium / Aluminum alloy. It has high corrosion resistance, and good weldability and formability.

The datasheet given below will discuss in detail about Aluminium / Aluminum 3105 alloy.

Chemical Composition

The chemical composition of Aluminium / Aluminum 3105 alloy is tabulated below.

Element Content (%)
Aluminium / Aluminum, Al 99.0
Manganese, Mn 0.55
Magnesium, Mg 0.50

Physical Properties

The following table shows the physical properties of Aluminium / Aluminum 3105 alloy.

Properties Metric Imperial
Density 2.6-2.8 g/cm3 0.0939- 0.101 lb/in3
Melting point 641°C 1185°F

Mechanical Properties

The mechanical properties of Aluminium / Aluminum 3105 alloy are outlined in the following table.

Properties Metric Imperial
Tensile strength 150 MPa 21755 psi
Yield strength 130 MPa 18855 psi
Shear strength 97 MPa 14069 psi
Elastic modulus 70-80 GPa 10153-11603 ksi
Poisson's ratio 0.33 0.33
Elongation 7% 7%

Thermal Properties

The thermal properties of Aluminium / Aluminum 3105 alloy are given in the following table.

Properties Metric Imperial
Thermal conductivity (@25°C/77°F) 173 W/mK 1201 BTU in/hr.ft².°F

Other Designations

Other designations equivalent to Aluminium / Aluminum 3105 alloy include ASTM B209.

Fabrication and Heat Treatment

Machinability

Aluminium / Aluminum 3105 alloy has average machinability. However, its machinability can be increased in harder tempers than in annealed condition. Oil lubricants are used for machining this alloy.

Forming

Aluminium / Aluminum 3105 alloy has good forming characteristics. It is suggested that bend radii should be used in one thickness to 2 t range for annealed H12, H14 and H16 tempers. Bend radii of 2 to 7 t should be used for the H18 temper.

Welding

Aluminium / Aluminum 3105 alloy has good weldability. It can be welded using arc welding method.

Heat Treatment

Aluminium / Aluminum 3105 alloy does not react to heat treatment except during cold working.

Forging

Aluminium / Aluminum 3105 alloy can be forged at the temperatures ranging from 372 to 510°C (700 to 950°F).

Hot working

Aluminium / Aluminum 3105 alloy can be hot worked at 205 to 372°C (400 to 700°F)

Cold Working

Aluminium / Aluminum 3105 alloy has good cold working characteristics in the harder cold worked tempers.

Annealing

Aluminium / Aluminum 3105 alloy is annealed at 344°C (650°F) followed by cooling in air.

Hardening

Aluminium / Aluminum 3105 alloy can be hardened only by cold working in H12, 14, 16, 18 or 25 tempers.

Applications

Aluminium / Aluminum 3105 alloy is used in sheet metal work. It is also used in manufacturing mobile homes, residential siding, and rain carrying goods.

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