Aluminium Flat Bar 20mm x 4mm
Description
The 20mm x 4mm aluminium flat bar is a robust and rigid extrusion profile manufactured from EN AW-6063 aluminium alloy in T6 temper. With a solid 4 mm thickness and moderate width, it delivers enhanced mechanical strength and dimensional stability—ideal for applications that demand greater structural support and durability.
This profile is commonly used in heavy-duty brackets, machine base frames, structural rails, support plates, and architectural fabrication. The 4 mm thickness makes it suitable for components exposed to stress, vibration, or frequent handling, while still allowing easy processing and integration.
Featuring a smooth mill finish, the bar is compatible with CNC machining, cutting, milling, and surface finishing operations. Optional surface treatments such as anodising or powder coating are available to meet project-specific aesthetic or corrosion resistance requirements.
Each bar is supplied in standard 6-metre lengths. Custom cut-to-size and surface finishing services are available for volume orders.
We supply aluminium flat bars to manufacturers, fabricators, and contractors seeking consistent quality and reliable supply for their operations.
➤ Minimum order quantity: 500 kg.
➤ Worldwide delivery via road, sea, or air freight.
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| Specification | Value |
|---|---|
| Width (a) | 20 mm |
| Thickness (b) | 4 mm |
| Corner Radius (r) | 1 mm |
| Weight per metre | 0.215 kg |
| Standard Length | 6 metres |
| Finish Options | Mill finish, powder-coated, anodised |
EN AW-6063
Material Specification
| Alloy | AlMgSi0.5 |
| Temper | T6 |
| Specific Weight | 2.71 gr/cm³ |
| Tensile Strength | 215 MPa |
| Yield Strength | 170 MPa |
| Shear Strength | 130 MPa |
| Hardness | 70 HB |
| Elongation | 6% |
| Elasticity Modulus | 6.89 GPa |
| Expansion Coefficient | 23.4 (20–100°C) |
| Coating Thickness | > 60 micron |
| Anodizing Thickness | 10–25 micron |
Chemical Composition
| Element | Range |
|---|---|
| Silicon (Si) | 0.20 – 0.60 |
| Iron (Fe) | max. 0.35 |
| Copper (Cu) | max. 0.10 |
| Manganese (Mn) | max. 0.10 |
| Magnesium (Mg) | 0.45 – 0.90 |
| Zinc (Zn) | max. 0.10 |
| Titanium (Ti) | max. 0.10 |
| Chromium (Cr) | max. 0.10 |
| Other Elements (each) | max. 0.05 |
| Other Elements (total) | max. 0.15 |
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