Giá nhôm tấm tuần 41/2026: SMM A00 rơi về 23.650 CNY/tấn sau lễ
Sàn Thượng Hải mở cửa lại sau Quốc khánh với hai phiên giảm liền: giá nhôm thỏi SMM A...
3104 Aluminum Alloy is a material from the 3xxx series, with Manganese (Mn) and Magnesium (Mg) as its primary alloying elements. This alloy is non-heat-treatable; its strength is instead determined by the degree of cold working (rolling, drawing). The general characteristic of 3104 aluminum is an excellent balance of relatively high strength, good corrosion resistance, and outstanding formability.
Among its various tempers, the annealed condition (designated 3104-O) is considered a breakthrough technical solution, specifically designed to solve the biggest challenges in forming operations such as bending, deep drawing, and shaping complex angles, where other common materials often fail.

| Category | Specification | Role & Significance |
|---|---|---|
| Primary Composition | Al (~96.8%), Mn (~1.0%), Mg (~1.0%) | Manganese and Magnesium are the two elements that enhance strength and corrosion resistance. |
| Tensile Strength (3104-O) | ~164 MPa | Provides sufficient structural strength for many household and light architectural applications. |
| Yield Strength (3104-O) | ~82 MPa | Very low, allowing the material to deform with minimal force, reducing the load on machinery. |
| Elongation (3104-O) | ~22% | Extremely ductile, a key factor that helps the material resist cracking during bending or deep drawing. |
| Weldability | Very Good | Easily joined using common welding methods, creating durable bonds. |
| Corrosion Resistance | Very Good | Durable in common environmental and outdoor conditions without complex coatings. |
To clearly see the difference, a direct comparison between 3104-O (soft, ductile temper) and 3003-H14 (a common work-hardened temper) is essential. The right choice between these two materials can determine the success or failure of a production line.
| Key Technical Criterion | Aluminum 3104-O (Premium Solution) | Aluminum 3003-H14 (Common Solution) |
|---|---|---|
| Sharp Bending Capability | Excellent (0t Bend Radius). Creates crisp, sharp, square bends. | Limited (~1.0t Bend Radius). Requires a gap, prone to cracking if bent too sharply. |
| Ductility (Crack Resistance) | Very High (Elongation ~22%). Safe for complex, deep drawing processes. | Low (Elongation ~11.2%). High risk of fracture under significant deformation. |
| Surface Hardness | Lower, more susceptible to scratches. | Higher, better resistance to impacts and scratches. |
Investing in 3104-O is not just a material upgrade; it is a strategic decision that optimizes the entire production process and yields clear economic benefits.
3104 Aluminum is a versatile material suitable for many industries. The choice of temper (soft -O or hard -H) will depend on the specific requirements of the final product. To understand these designations better, you can refer to our guide to looking up aluminum grades.
Aluminum alloy 3104 is a versatile and effective material, but its true strength is revealed in the 3104-O temper. It is the optimal material choice for applications requiring superior formability, helping businesses solve the difficult problem of scrap, increase productivity, and open new doors for design innovation. Investing in the right material like 3104-O is an investment in product quality, brand reputation, and long-term economic efficiency.