3003 Aluminum Rod

3003 aluminum rods belong to the aluminum-manganese series (3 series) of rust-resistant aluminum alloys. It is the most commonly used general-purpose rust-resistant aluminum and cannot be strengthened through heat treatment. Hardness and strength are primarily adjusted through cold working, making it a mainstream material to replace pure aluminum. The standard density of 3003 aluminum alloy at room temperature is 2.73 g/cm³ (i.e., 2730 kg/m³). For routine weighing and material estimation, the industry generally uses a simplified value of 2.7 g/cm³, consistent with the general estimated value for most commonly used aluminum alloys. Its density does not change due to different supply conditions such as O temper or H series.

Round aluminum rod (commonly used) weight calculation formula:

weight kg = 0.002146 * d * d * length;

Explanation: Diameter d (mm), length L (m)

It exhibits excellent stability in atmospheric conditions, rainwater, indoor and outdoor humid environments, and freshwater. A dense oxide film forms on its surface, making it resistant to oxidation, whitening, and rust. It remains stable even with long-term outdoor use. It also demonstrates good corrosion resistance at welded locations, minimizing weld corrosion. However, it is not suitable for highly corrosive conditions: it is not resistant to strong acids or alkalis, and its protective capabilities are insufficient when facing high concentrations of seawater, heavy salt spray, or corrosive chemical media. Aluminum rod manufacturers recommend using 5-series rust-resistant aluminum (5052, 5A06, etc.) for such applications. For general civilian use, ordinary outdoor applications, and freshwater contact scenarios, 3003 aluminum's rust-resistant capabilities are sufficient, requiring no additional complex anti-corrosion treatment.