6061 Aluminum Expanded Sheets
About 6061 Aluminum Expanded Sheets
6061-T6 aluminum expanded sheet offers a high strength-to-weight ratio, excellent weldability, and corrosion resistance. Base material meets ASTM B209. Ideal for walkways, grates, and security screens. Los Angeles stock.
Quick Facts
- Material: 6061-T6 Aluminum
- ASTM Standard: B209 (Base Material)
- Temper/Condition: T6 (Solution heat-treated, artificially aged)
- Available Sizes: Standard mill sizes
- Location: Los Angeles warehouse
- Services: Custom size, same-day pickup
Overview
6061 aluminum expanded sheet is produced by slitting and stretching a solid sheet of 6061-T6 aluminum, creating a diamond-pattern mesh with no welds or joints. This process maintains the structural integrity of the base material while reducing weight and allowing for the passage of light, air, and fluids. The 6061 alloy provides a versatile combination of strength, formability, and excellent corrosion resistance.
With a yield strength of 40,000 PSI, this material is suitable for load-bearing applications like industrial platforms and ramps. Its superior resistance to atmospheric corrosion makes it a durable choice for outdoor architectural elements and protective barriers. The lightweight nature of the expanded mesh simplifies handling and installation, reducing structural support requirements compared to solid plate, making it an efficient and economical material choice.
Technical Specifications
Mechanical Properties (6061-T6 Base Material)
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 45,000 | PSI |
| Yield Strength | 40,000 | PSI |
| Elongation | 12 | % |
| Hardness | 95 | HB |
Applicable Standards
- ASTM B209: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate. This standard governs the properties of the base material used to create the expanded sheet.
Common Applications
- Industrial: Catwalks, safety grating, and work platforms - for its non-slip surface and high strength.
- Architectural: Building façades, sunscreens, and decorative panels - for its aesthetic appeal and light-filtering properties.
- Security: Window guards, security fencing, and enclosure panels - for providing a strong barrier with visibility.
- Transportation: Trailer ramps, running boards, and cargo partitions - for its lightweight durability and grip.
- Filtration: Support screens for industrial filter media - due to its high open area and corrosion resistance.
- HVAC: Equipment vents, fan guards, and protective machinery screens - for allowing maximum airflow while preventing contact.
- Automotive: Grilles, vents, and custom bodywork inserts - for its custom look and protective function.
Working with 6061 Aluminum Expanded Sheets
Machining
6061-T6 aluminum offers good machinability. The expanded pattern may require support backing to prevent vibration during cutting or drilling. Use sharp tooling, high speeds, and appropriate lubricant for the best results. Abrasive saws or plasma cutters are also effective for cutting.
Welding
This material has excellent weldability using common methods like MIG and TIG. Use 4043 or 5356 filler wire for best results. Note that the T6 temper strength in the heat-affected zone (HAZ) will be reduced; post-weld heat treatment can be used to restore properties if required.
Finishing
6061 expanded sheet can be easily finished. Anodizing provides enhanced corrosion resistance and a range of color options. Powder coating offers a durable, protective, and decorative finish. The material can also be used in its raw mill finish for many industrial applications.
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Frequently Asked Questions
Q: What is the difference between standard (raised) and flattened expanded sheet?
A: Standard expanded sheet has a raised, textured surface from the stretching process, providing excellent grip. Flattened expanded sheet is cold-rolled after expansion to create a smooth, flat surface. Bobco Metals can source either type based on your project requirements.
Q: Is 6061 expanded sheet suitable for marine environments?
A: While 6061 offers very good general corrosion resistance, 5052 or 5083 series aluminum are typically preferred for direct saltwater applications due to their superior resistance to salt corrosion. For general outdoor use, 6061 is an excellent choice.
Q: How is expanded sheet size specified?
A: It is defined by the diamond pattern dimensions: Short Way of Diamond (SWD) and Long Way of Diamond (LWD). The material's strand thickness and width are also key specifications. The overall sheet size is typically 4x8 ft or other standard dimensions.
Stock & Custom Sizes
Available in standard mill sizes. Custom size available.
Same-day cutting and Los Angeles pickup available.
View Sizes & PricingNeed 6061 Aluminum Expanded Sheets? Contact Bobco Metals for availability and Los Angeles pickup.
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