What is the difference between 6101 and 6063 aluminum?


What is the difference between 6101 and 6063 aluminum?


As typical representatives of 6 series aluminum alloys, 6061, 6063 and 6101 aluminum alloys have wide application value in the industrial field. This article will conduct a systematic technical analysis of these three alloys from four aspects: material properties, application fields, product forms and selection recommendations. First, we will compare their chemical composition and mechanical properties in detail; secondly, we will explain their main application scenarios; then, we will introduce common product processing forms; finally, based on actual engineering needs, we will provide professional selection guidance recommendations.

Chemical Composition Comparison (wt%)

Element/Alloy606160636101
Si0.4-0.80.2-0.60.3-0.7
Fe≤0.7≤0.35≤0.5
Cu0.15-0.4≤0.1≤0.05
Mn≤0.15≤0.1≤0.03
Mg0.8-1.20.45-0.90.35-0.8
Cr0.04-0.35≤0.1-
Zn≤0.25≤0.1≤0.1
Ti≤0.15≤0.1-
AlBalanceBalanceBalance

Key Differences:

  • 6061: Higher copper (Cu) and chromium (Cr) content → Better strengthening effect

  • 6101: Ultra-low copper (≤0.05%) → Superior electrical conductivity

  • 6063: Lower magnesium (Mg) content → Optimized for extrusion


6061 T6, 6063 T5  and 6101 T6 Aluminum Properties 

Property/Alloy606160636101Key Differences
Density (g/cm³)2.702.702.70Identical density
Tensile Strength (MPa)290-310190-240150-1806061 > 6063 > 6101
Yield Strength (MPa)240-270170-210120-1506061 has highest load capacity
Elongation (%)8-1210-1215-206101 offers best ductility
Hardness (Brinell)95-10060-7550-606061 is most wear-resistant
Load Capacity Ratio100% (Ref)~70-80%~50-60%6061 withstands greater weight at same dimensions

How to choose the suitable material easily?

What is the difference between 6101 and 6063 aluminum?

Applications

6061 aluminum:

As an aviation-grade structural material, 6061 has become the main alloy in the industrial field due to its excellent comprehensive mechanical properties. This material is strengthened by Mg2Si phase, and the tensile strength can reach 310MPa in the T6 state. It is widely used in high-stress scenarios such as aircraft parts and automated mechanical frames. Its welding performance is relatively poor, and 4043 welding wire must be used in combination with pulse welding process.

6101 Aluminum:

A representative product of electrical aluminum, 6101 has a conductivity of more than 55% IACS by strictly controlling the Fe and Si impurity content. This alloy is mainly used in conductive parts such as power busbars and transformer windings. Its strength is only 50% of 6061, but its corrosion resistance is better than that of conventional industrial aluminum alloys. Special annealing process can further improve its conductivity.

6063 Aluminum:

The standard choice of architectural aluminum profiles, 6063 is known for its excellent extrusion forming performance. After online quenching, this alloy can obtain a good surface finish and excellent anodizing effect. Typical applications include civil products such as doors, windows, curtain walls, and radiators. Although its strength is not as good as 6061, it fully meets the requirements of building specifications

Forms of 6101 6063 6061 aluminum

Shenzhen Chinalco Metal supply 6101, 6061, 6063 in forms of aluminum bus bar, aluminum plate/sheet, aluminum tube, aluminum round bar. 

What is the difference between 6101 and 6063 aluminum?

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