What is H62/h59 brass?
H59 brass and H62 brass are two common grades of brass alloys, which are primarily composed of copper and zinc. The key difference between them lies in their copper and zinc content, which in turn affects their mechanical properties, processability, and applications.
H59 Brass, also known as "ordinary brass" or "yellow brass," contains approximately 57.0%–60.0% copper and over 48% zinc. It is characterized by relatively high strength and hardness, good machinability, and cost-effectiveness, making it suitable for general engineering and manufacturing applications.
H62 Brass, often referred to as "cartridge brass," contains approximately 60.5%–63.5% copper and about 39% zinc. It is known for its excellent balance of strength and ductility, superior corrosion resistance, and good formability, making it ideal for applications requiring durability and aesthetic appeal.
Chemical Composition
The copper content of H59 brass ranges between 57.0% and 60.0%, while that of H62 brass ranges between 60.5% and 63.5%. H59 brass has a higher zinc content, typically above 48%, whereas H62 brass has a relatively lower zinc content, around 39%. This compositional difference leads to variations in their mechanical and process properties.
Mechanical Properties
Due to its higher zinc content, H59 brass exhibits relatively higher strength and hardness but lower plasticity and toughness. This type of brass is suitable for manufacturing parts that need to withstand significant loads and impacts, such as bolts and rivets. In contrast, H62 brass offers better plasticity and toughness, enabling it to endure bending and torsion, making it suitable for parts that require bending and forming, such as water pipe fittings and heat sinks.
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Process Performance
H59 brass demonstrates good casting, machining, and welding performance, making it easy to process through hot and cold pressing. H62 brass also exhibits good casting, machining, and welding performance. However, compared to H59 brass, its hot pressing performance is relatively poorer, and it is more prone to hot brittleness.
Application Fields
Due to their differing properties, H59 and H62 brass are used in different application areas. H59 brass is suitable for manufacturing parts that require high strength and good wear resistance, such as bearing bushings, gears, and worm wheels. On the other hand, H62 brass is ideal for parts that require good plasticity and bending performance, such as water pipe fittings, heat sinks, and waveguide tubes.
Our factory
Our factory serves as the core base for the precision manufacturing of copper products, integrating advanced equipment, strict quality control, and efficient production capacity. We possess a complete production line covering the entire process from raw material smelting and continuous rolling to precision drawing/cutting, with key equipment including large-tonnage hydraulic stretching machines, high-precision CNC machine tools, and automated surface treatment systems. This enables the large-scale and customized production of a wide range of products such as copper rods, tubes, plates, strips, and wires. The factory strictly adheres to the ISO quality management system and is equipped with testing instruments such as spectrometers and mechanical property testing machines to monitor process parameters and product performance throughout the entire process. Digital production management is achieved through an ERP system and visual dashboards, ensuring timely order delivery. Furthermore, we implement a green manufacturing philosophy, equipped with exhaust gas treatment and scrap recycling systems, committed to providing customers with high-quality and sustainable copper material solutions.
Copper product packaging
We employ professional and reliable packaging solutions to comprehensively protect the integrity of all types of copper products during long-distance transportation and handling. For copper rods and tubes, we use moisture- and rust-proof materials for wrapping, secured with sturdy wooden crates or steel strapping to prevent bending and deformation. Copper plates and strips are sealed with waterproof paper or plastic film, protected with edge guards, and then fixed on customized wooden pallets or metal racks to avoid surface scratches and moisture. Copper wires are neatly wound on specialized reels, wrapped with moisture- and rust-proof film, and reinforced at the edges. All packaging is designed according to export standards, with clear labeling to ensure the safe delivery of goods to our global customers.
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