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2A11 Aluminum pipe

It is one of the earliest used duralumin, commonly known as standard duralumin. It has medium strength, good plasticity in annealing, hard quenching and hot state, and can be strengthened by heat treatment. It can be used in quenching and natural aging state.

Detailed introduction

About 2A11 Aluminum

It is one of the earliest used duralumin, commonly known as standard  duralumin. It has medium strength, good plasticity in annealing, hard quenching  and hot state, and can be strengthened by heat treatment. It can be used in  quenching and natural aging state. It has good spot welding performance. When  2A11 is used as solder for gas welding and argon arc welding, it tends to crack;  Aluminum clad sheet has good stability, but the corrosion resistance of non  aluminum clad sheet is not high, and there is a tendency of intergranular  corrosion when heated above 100 ℃.


Chemical Composition and Mechanical Property

Al

Si

Cu

Mg

Zn

Mn

Ti

Ni

Fe+Ni

Fe

Margin

≤0.70

3.8-4.8

0.4-0.8

0.3

0.4-0.8

≤0.15

≤0.10

≤0.50

≤0.70


Tensile  Strength(Mpa)

≥370

yield strength(Mpa)

≥215

EL(%)

≥12%

Density(g/cm³)

2.68


Heat treatment process for 1060

Carry out oil quenching and tempering. The strength of this kind of steel  wire is not as good as that of lead bath treated steel wire, but the properties  are uniform and the cost is low. After cold roll forming, the stress is removed.  Pull to the specified size, and then anneal. The mechanical properties of the  softened coil can be obtained only after quenching and tempering at medium  temperature.


Applications for 2A11

Surface anodization and painting can reliably protect extruded and forged  parts from corrosion. The machinability is good in quenching and aging state,  but bad in annealing state.

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