Definition of Aluminum 6060 | 3.3206 | AlMgSi
Aluminum 6060 | 3.3206 | AlMgSi is a lightweight aluminum alloy mainly made with magnesium and silicon. It offers good corrosion resistance, easy forming, good weldability, and a smooth surface finish. It is especially popular for aluminum profiles and extruded shapes. Aluminum 6060 is commonly used for frames, housings, brackets, automotive parts, furniture, building components, and many CNC-machined products.
Properties of Aluminum 6060 | 3.3206 | AlMgSi
| Property | Value |
|---|---|
| Mechanical Properties | |
| Ultimate tensile strength | 120 – 215 MPa |
| Yield strength | 60 – 170 MPa |
| Young’s modulus (modulus of elasticity) | 70 GPa |
| Elongation at break | 8 – 14 % |
| Physical Properties | |
| Corrosion resistance | Good |
| Post Treatments | |
| Anodizing compatibility | Suitable |
| Common Applications | |
| Architectural sections | Frames |
| Lightings | Railling |
| Ladders | Furniture |
| Fences | Flooring |
Why Aluminum 6060 | 3.3206 | AlMgSi Matters in CNC Workshops
- Good corrosion resistance: Aluminum 6060 performs well in normal outdoor and industrial environments and can provide a long service life.
- Suitable for CNC machining: It can be milled, drilled, turned, and cut to produce accurate parts when the correct tools and cutting settings are used.
- Excellent surface finish: Aluminum 6060 can produce clean-looking parts and also works well with anodizing and other surface treatments.
- Easy to form and weld: It is useful for projects that combine CNC machining with extrusion, bending, forming, or welding.
Surface Finishes Aluminum 6060 | 3.3206 | AlMgSi
As-Machined
The default finish from CNC machining plastic stock (Delrin, nylon, HDPE, ABS). Visible linear tool path scallop marks across machined surfaces with a matte plastic sheen. No secondary operation suitable for functional components, jigs, fixtures, and internal parts where cosmetic appearance is secondary to dimensional accuracy.
Flame Polished
Quick post-fabrication process that passes a controlled flame over acrylic (PMMA) cut edges, melting the surface micro-layer to produce a crystal-clear, glossy, transparent edge. Fast and cost-effective for acrylic sheet edges produces optical clarity on cut borders without the labor of hand polishing. Ideal for display cases, signage, and acrylic enclosures.
Vapor Polished
Post-fabrication chemical process that exposes transparent plastic parts (acrylic, PC, PETG) to solvent vapor, melting and smoothing the surface micro-layer to dramatically improve optical clarity and gloss. Removes machining lines and produces crystal-clear transparent parts — essential for prototype lenses, light guides, display windows, fluidic chambers, and medical components requiring optical transparency.
Painted
Post-fabrication spray painting in any custom color (matte, satin, gloss, metallic) followed by screen printing or pad printing for logos, labels, buttons, and graphics. Applied over a primed plastic surface for uniform color and adhesion. Allows custom fabricated plastic parts to match production aesthetics widely used for control panels, instrument faces, enclosures, and marketing/showcase components requiring exact brand color and graphic printing.
Sanded
Post-fabrication sanding with progressively finer grit sandpaper (typically 240–600 grit) produces a uniform low-gloss matte non-reflective surface. Hides machining marks, scratches, and surface inconsistencies while providing a soft tactile feel. Used for HDPE, UHMW, and nylon components where a durable, non-glare, fingerprint-resistant matte appearance is desired for industrial and functional parts.
Heat Formed
Thermoforming process that heats plastic sheet (acrylic, polycarbonate, ABS) to its glass transition temperature and bends it over a form tool to create precise angles and curved shapes. Produces clean, smooth bend radii with consistent surface finish no tool marks at the bend. Used for display stands, guards, enclosures, signage, and custom fabricated parts requiring 3D formed shapes from flat sheet stock.
