Aluminum for CNC machining

CNC Metal Materials List

Aluminum CNC machining
Copper CNC machining
Brass CNC machining
Stainless steel CNC machining
Steel CNC machining
Titanium CNC machining
Zinc CNC machining

Aluminum 2024-T3

This aluminum alloy resists fatigue well and is quite machinable, but exhibits poor weldability characteristics. It is not very resistant to corrosion, so it requires surface treatments if used in harsh environments. Aluminum 2024-T3 is typically used for bolts, aircraft fittings, and pistons.

Aluminum 2024-T3 Properties

Tensile Strength, Yield (MPa)Fatigue Strength (MPa)Elongation at Break (%)Hardness (Brinell)Density (g/cm^3)
324138191202.78

Aluminum 5052

This aluminum alloy uses magnesium as its primary alloying element. It is very corrosion-resistant due to the lack of copper in its composition but it cannot be heat-treated. Aluminum 5052 is typically used in fuel tanks, sheet metal parts, and fuel/oil lines.

Aluminum 5052 Properties

Tensile Strength, Yield (MPa)Fatigue Strength (MPa)Elongation at Break (%)Hardness (Brinell)Density (g/cm^3)
19311718602.68

Aluminum 6061

This grade of aluminum is considered a general-purpose alloy. It has excellent machinability characteristics and can be easily welded. The primary alloying elements are magnesium and silicon. This aluminum alloy is regularly used to make electrical fittings, brake pistons, and bike frames.

Aluminum 6061 Properties

Tensile Strength, Yield (MPa)Fatigue Strength (MPa)Elongation at Break (%)Hardness (Brinell)Density (g/cm^3)
27696.517952.7

Aluminum 6063

There is only a slight difference between the alloying elements in aluminum 6063 as compared to 6061. This aluminum alloy is not as strong but offers better formability. As a result, it’s well-suited for pipes, railings, and extrusions.

Aluminum 6063 Properties

Tensile Strength, Yield (MPa)Fatigue Strength (MPa)Elongation at Break (%)Hardness (Brinell)Density (g/cm^3)
21468.912732.7

Aluminum 7050

This aluminum alloy is one of the strongest available. Its main alloying element is zinc. Aluminum 7050 achieves its strength by sacrificing corrosion resistance; the inclusion of copper is the reason behind both effects. This alloy is also highly machinable. Its strength makes it ideally suited for aircraft structures.

Aluminum 7050 Properties

Tensile Strength, Yield (MPa)Fatigue Strength (MPa)Elongation at Break (%)Hardness (Brinell)Density (g/cm^3)
490160111472.83

Aluminum 7075

This alloy is slightly stronger than 7050 aluminum and has very good fatigue resistance, making it ideal for applications that undergo cyclic loading. Its main alloying element is zinc and its typical applications include meter shafts and gears, aircraft fittings, and shaft keys.

Aluminum 7075 Properties

Tensile Strength, Yield (MPa)Fatigue Strength (MPa)Elongation at Break (%)Hardness (Brinell)Density (g/cm^3)
503159111502.81

Aluminum MIC-6

This aluminum alloy is cast specifically for applications that require highly accurate components like assembly jigs, test structures, and fixture plates. It is well-suited to these applications because its crystal structure has no internal stresses. It also allows for high-speed machining without the significant distortion common in other aluminum alloys.

Aluminum MIC-6 Properties

Tensile Strength, Yield (MPa)Fatigue Strength (MPa)Elongation at Break (%)Hardness (Brinell)Density (g/cm^3)
105N/A3652.7
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