Introduction to Aluminum

RapidDirect aluminum parts

Aluminum is a versatile material with properties that make it ideal for CNC machining. Aluminum has excellent machinability, welding and electroplating properties as well as good corrosion resistance. The metal is also characterized by a high strength-to-weight ratio and good temperature resistance. After machining, aluminum has a low risk of deformation or defects and is easy to polish and color.

Because of these properties, aluminum is a broadly used metal in many industries, including automotive, defense, aerospace, transportation, construction, packaging, electronics, consumer goods and more.

Information of Aluminum


Features Info

6061-T6, 7075-T6, 7050, 2024, 5052, 6063, etc


CNC machining, injection molding, sheet metal fabrication


With drawing: as low as +/- 0.005 mm No drawing: ISO 2768 medium


Light & economic, used from prototyping to production

Finishing Options

Alodine, Anodizing Types 2, 3, 3 + PTFE, ENP, Media Blasting, Nickel Plating, Powder Coating, Tumble Polishing.

Available Aluminum Subtypes



Yield Strength

Elongation at Break

Hardness Density

Maximum Temp

Aluminum 6061-T6

35,000 PSI


Brinell 95

2.768 g/㎤ 0.1 lbs / cu. in.

1080° F

Aluminum 7075-T6

68,000 psi


Rockwell B86

2.768 g/㎤ 0.1 lbs / cu. in

380° F

Aluminum 5052

23,000 psi


Brinell 60

2.768 g/㎤ 0.1 lbs / cu. in.

300° F

Aluminum 6063

16,900 psi


Brinell 55

2.768 g/㎤ 0.1 lbs / cu. in.

212° F


Surface Finishes for Your Choosing

Name Description Materials Color Texture Link
P04 2 S02 anodizing
Anodizing Anodizing improves corrosion resistance, enhances wear resistance and hardness, and protects the metal surface. Widely used in mechanical parts, aircraft, and automobile parts, precision instruments, etc. All materials Clear, black, grey, red, blue, gold. Smooth, matte finish. Learn More
surface finish bead blast

Bead Blasting

Bead blasting results in parts with a smooth surface with a matte texture. Used mainly for visual applications and can be followed by other surface treatments.

ABS, Aluminum, Brass, Stainless Steel, Steel

n/a Matte Learn More
surface finish powder coating
Powder Coating Powder coating is a type of coating that is applied as a free-flowing, dry powder. Unlike conventional liquid paint which is delivered via an evaporating solvent, powder coating is typically applied electrostatically and then cured under heat or with ultraviolet light. Aluminum

Black, any RAL code or Pantone number

Gloss or semi-gloss

Learn More
surface finish electroplating
Electroplating Electroplated coating preserves the surface of parts and resists rusts and other defects from causing decay by applying electric currents to reduce metal cations.

Aluminum, steel, stainless steel


Gloss or semi-gloss

Learn More
surface finish polishing

Ranging from Ra 0.8~Ra0.1, polishing processes use an abrasive material to rub the part’s surface to make the shine more less shiny, depending on your requirements.

All materials


Smooth, glossy finish

Learn More
surface finish brushing

Brushing is a surface treatment process in which abrasive belts are used to draw traces on the surface of a material, usually for aesthetic purposes.

ABS, Aluminum, Brass, Stainless Steel, Steel



Learn More
surface finish painting

Painting involves spraying a layer of paint onto the surface of the part. Colors can be matched to a Pantone color number of the customer’s choosing, while finishes range from matte to gloss to metallic.

Aluminum, Stainless Steel, Steel


Gloss, semi-gloss, flat, metallic, textured

Learn More

Gallery of Aluminum Metal Parts

Let's Start A New Project Today