5005 polished aluminum sheet metal roll
The 5005 polished aluminum sheet metal roll is a high-performance, aesthetically appealing aluminum alloy product that combines durability, corrosion resistance, and excellent surface finish. Widely utilized across architectural cladding, decorative panels, transportation, and industrial machinery, this alloy benefits from a polished finish, offering a visually appealing luster while maintaining its structural integrity.
Material Composition and Chemical Properties
The 5005 alloy is part of the 5xxx series aluminum – primarily alloyed with magnesium, which lends excellent corrosion resistance and moderate strength. It has an advantage over basic 3003 aluminum due to its enhanced weathering resistance coupled with moderate tensile strength. Below is the typical chemical composition (weight %):
The 5005 polished aluminum sheet metal roll is a workhorse around here. We see a lot of it – it's a popular choice for applications needing a good balance of strength and corrosion resistance, especially in mildly corrosive environments. From a production standpoint, its relatively soft nature makes it easier to roll and process than some of the harder alloys, leading to less downtime and waste. However, that softness also means it's more susceptible to scratching and marring during handling and storage, so we pay close attention to maintaining clean and well-padded surfaces throughout the entire process. The polishing itself is a delicate balance – achieving a consistent, mirror-like finish requires careful control of the abrasive processes, and even slight variations can impact the final product's reflectivity and perceived quality.
Personally, I find the 5005 intriguing because of its versatility. We ship rolls of this alloy to customers making everything from signage and architectural cladding to heat exchangers and food processing equipment. It's remarkable to see such a seemingly simple material end up in such diverse applications. The polished finish, while aesthetically pleasing, also plays a crucial role in many of these uses, from enhancing visibility in signage to improving heat transfer efficiency. The slight variations in the final polish we sometimes see, even within a single roll, can be a source of minor frustration, but ultimately contributes to the material's unique character and reminds me that each roll is a product of a
| Element | Composition (%) |
|---|---|
| Aluminum (Al) | Balance |
| Magnesium (Mg) | 0.8 – 1.2 |
| Iron (Fe) | ≤ 0.7 |
| Silicon (Si) | ≤ 0.4 |
| Copper (Cu) | ≤ 0.1 |
| Manganese(Mn) | ≤ 0.2 |
| Zinc (Zn) | ≤ 0.1 |
| Chromium (Cr) | 0.1 – 0.3 |
| Other (Each) | ≤ 0.05 |
| Other (Total) | ≤ 0.15 |
Mechanical Properties by Temper
The temper of the aluminum significantly impacts the product’s mechanical properties and suitability for various applications. Common tempers of 5005 sheet metal rolls include H14 (hard), H22 (half-hard), and H34 (very hard):
| Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Notes |
|---|---|---|---|---|
| H14 | 140 – 180 | 70 – 110 | 8 – 14 | Good combination of strength and formability |
| H22 | 170 – 220 | 130 – 170 | 6 – 10 | Better strength, less formability |
| H34 | 220 – 250 | 180 – 230 | 5 – 8 | Maximum strength achievable by strain hardening |
| O (annealed) | 90 – 120 | 35 – 55 | 18 – 22 | Soft and ductile |
Physical Parameters
| Parameter | Value |
|---|---|
| Density | 2.67 g/cm³ |
| Melting Point | 605 – 650 °C |
| Thermal Conductivity | Approx. 130 W/m·K (room temp) |
| Electrical Resistivity | ~43 nΩ·m |
| Modulus of Elasticity | 70 GPa |
Product Specifications
- Thickness Range: 0.2 mm to 3.0 mm
- Width: Up to 1500 mm (custom widths available)
- Length: Available in coils, typically 1000 – 6000 meters per roll
- Surface Finish: Polished (brushed or mirror finish options available)
- Edges: Sheared smooth or milled edges
- Packaging: Coil wrapped with protective film and anti-corrosive oil, wooden crates available for export
Standards & Compliance
The 5005 aluminum sheet metal rolls are manufactured in compliance with the following industry standards to assure quality, dimensional stability, and consistency:
- EN 485-2: Aluminium and aluminium alloys — Sheet, strip, and plate — Mechanical properties
- ASTM B209: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate
- JIS H4000: Aluminum and aluminum alloy sheets and plates
- ISO 6361: Aluminum and aluminum alloys — Wrought plates, sheets, and strips
Advantages of 5005 Polished Aluminum Sheet Metal Roll
- Excellent corrosion resistance, particularly suitable for outdoor environments and marine conditions.
- Polished finish provides an attractive aesthetic with options ranging from mirror-like gloss to satin textures suitable for architectural panels.
- Medium strength allows for moderate shaping and forming for complex profiles.
- Non-heat-treatable but excellent corrosion resistance and weldability.
- Lightweight with a strong strength-to-weight ratio.
- Environmentally friendly: Fully recyclable material.
Applications
- Architectural façades and interior decorative panels
- Signage and advertising boards requiring shine and longevity
- Transportation bodies including trucking trailers and railway components
- HVAC equipment and ducting steel improvement
- Catering equipment and kitchen appliances due to hygienic surface quality
- Marine and offshore components exposed to wet and corrosive atmospheres
Handling and Implementation Recommendations
- Store coils in a dry covered facility to avoid moisture accumulation and potential oxidation beneath the polished layer.
- Polished surfaces require careful handling to avoid surface marring – recommend using protective films when possible.
- Welding can be performed via TIG and MIG methods with appropriate filler materials designated for 5xxx series alloys.
- For best formability, use annealed temper (O) sheets. Cold working will increase strength but reduce ductility.
- Regularly clean surfaces with a non-abrasive cleaner suited for aluminum finishes.
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