Aluminium bronze

Aluminum bronze can be classified as follows:
1. C95400 (Aluminum Bronze, 9D):
Characteristics: It has high strength and corrosion resistance, good wear resistance and fatigue resistance, as well as stability at high temperatures. It also has excellent thermal conductivity and weldability.
Element Composition: Copper content is approximately 83.0%-86.5%, aluminum content is 10.0%-11.5%, iron content is 3.0%-5.0%, and it may also include small amounts of manganese, nickel, and silicon.
Applications: Widely used in the manufacture of high-load parts such as gears, bearings, valves, pump components, and aircraft parts.
2. C95500 (Nickel Aluminum Bronze):
Characteristics: It provides higher strength and toughness than C95400, with better corrosion resistance and seawater corrosion resistance due to the presence of nickel.
Element Composition: Copper content is approximately 78.0%-81.5%, aluminum content is 10.0%-11.5%, nickel content is 3.0%-5.5%, iron content is 2.0%-4.0%, and it may also contain small amounts of manganese and silicon.
Applications: Suitable for applications requiring extremely high corrosion resistance and strength, such as parts for naval vessels, valves, and pump components.
3. C95800 (Nickel Aluminum Bronze):
Characteristics: It has excellent seawater corrosion resistance, high strength, and good fatigue resistance. This alloy is also suitable for welding and forming.
Element Composition: Copper content is approximately 81.0%-85.0%, aluminum content is 8.5%-9.5%, nickel content is 4.0%-5.0%, iron content is 4.0%-5.0%, and it may also contain small amounts of manganese and silicon.
Applications: Commonly used in marine environments, such as ship propellers, valves, pumps, and high-strength bearings.

Aluminum bronze scrap is commonly found in marine environments, such as ships and seaside factories, due to its strong corrosion resistance, especially in marine environments. It also has good wear resistance and is resistant to oxidation, frequently used in high-load applications like aircraft components, vessel fittings, valves and pump parts, high-strength fasteners, and bearings.

The value of bronze scrap typically depends on several factors, including the type of alloy, purity, existing market demand, and the ease of recycling and reprocessing. Certain types of bronze may have higher value due to their specific chemical composition and applications. Here are some factors that may increase the value of bronze scrap:
1. Alloy Type: Due to the high price of tin, bronze alloys with a higher percentage of tin are usually more valuable.
2. Purity and Cleanliness: Bronze scrap with fewer impurities and non-metallic substances is easier to recycle and reprocess, making it more valuable. Selling a homogeneous batch of a single metal element can achieve much higher prices than mixed bronze or mixed with other copper alloys.
3. Ease of Recycling: Bronze scrap that is not bound with other metallic or non-metallic impurities and is easy to sort and recycle is typically more valuable because the processing costs are lower. Conversely, if scrap requires a complex preprocessing process, its recycling value may decrease.
4. Shape and Size: Large and regular-shaped pieces of bronze scrap, compared to smaller or mixed batches, have more stable metal content, are easier to process, and have a higher metal recovery rate, thus having higher value.
In summary, higher-value bronze scrap is often those alloys containing precious metals, high purity, easy to recycle, and in high market demand. Due to market price fluctuations, to obtain specific scrap prices, it is best to consult local recyclers or check current metal market quotations.

The value of bronze lies in its purity and composition. Therefore, the processing aim is to reduce metallic and non-metallic impurities and sort out bronze from other copper alloys to increase its production value.
1. Disassembly
Bronze parts often contain other metallic or non-metallic impurities such as plastics, brass, and stainless steel, which should be disassembled and cleaned as much as possible.
2. Sorting
Bronze should be meticulously sorted from brass and red copper. Sorting is primarily done by skilled workers. Additionally, different types of bronze are often distinguished during preprocessing in factories that produce specific products.

The primary detection method for aluminum bronze scrap is visual inspection. Experienced professionals can estimate the copper content of aluminum bronze scrap within ±1% through visual inspection. In addition, the detection methods for aluminum bronze scrap include crucible testing. For metal pieces with uncertain copper content, portable spectral analysis can also be used for detection.

Bronze is a type of non-ferrous scrap with very specific demand attributes. For factories and companies specializing in bronze products such as propellers and ships, reusable bronze is a highly cost-effective source of recycled raw materials, and thus their prices have certain advantages compared to traders or other copper alloy production enterprises. Therefore, bronze scrap should be matched with companies that can directly utilize it at its original grade.
Strong Competitive Market: The Chinese mainland market for aluminum bronze scrap, in terms of both price and demand, has the strongest competitiveness in the world. Apart from this, Taiwan, China, and Japan also have a certain level of competitiveness.

In aluminum bronze scrap transactions, special attention should be paid to the uniformity between the reported photos and the actual goods, as well as the consistency between the reporting location and the actual shipping location. Due to the high variability of brass scrap, prices are heavily dependent on images and origin information.