What is H62 brass?
H62 brass strips are a type of common brass material based on a copper-zinc alloy. They have an average copper content of 62%, with zinc making up the balance and containing trace impurities. This material offers a good combination of mechanical properties and workability. It exhibits excellent plasticity in the hot state, acceptable plasticity in the cold state, and good machinability, weldability, and corrosion resistance, though it carries a risk of stress corrosion cracking. Due to its low cost and wide applicability, it is commonly used to manufacture stressed parts such as pins, rivets, washers, nuts, conduits, pressure gauge springs, screens, and heat sink components.
Basic Information
| Material Category | Copper-Zinc Alloy |
|---|---|
| Copper Content | 60.5% - 63.5% |
| Tensile Strength | 410 - 630 MPa |
| Typical Uses | Mechanical parts, heat sink components |
| Processing Forms | Extruded, Natural Copper State |
| Density | 8.5 g/cm³ |
Chemical Composition
The primary components of H62 brass strips are copper (60.5%-63.5%) and zinc (balance). Impurity limits include iron ≤0.15%, lead ≤0.08%, as well as trace amounts of antimony, bismuth, phosphorus, etc.
Mechanical Properties
Tensile Strength: 410-630 MPa (conventional state) / 385 MPa (extruded state)
Elongation: 10%
Hardness: 105-175 HV
Physical Characteristics
H62 brass strips have a density of 8.5 g/cm³ and offer good thermal conductivity, electrical conductivity, and corrosion resistance, but they are prone to stress corrosion cracking.
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Processing Technology
Hot Working Temperature: 650-850°C
Annealing Treatment: 600-700°C (full annealing) / 270-300°C (stress relief annealing)
Cold Working: Suitable for forming processes like deep drawing and bending.
Application Fields
H62 brass strips are widely used in manufacturing the following components:
Mechanical Parts: Pins, rivets, washers, nuts, etc.
Instrument Components: Pressure gauge springs, screens.
Industrial Equipment: Heat sink parts.
Transportation Sector: Automotive synchronizer gear rings, marine pump and valve components.
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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