What is H68 brass?
H68 brass, also known as H68 copper alloy, is a high-strength, multi-purpose alloy material. Its main components include copper and zinc, with a copper mass fraction of approximately 68% and a zinc mass fraction of about 32%. This composition gives the alloy good corrosion resistance and machinability while ensuring mechanical strength.
Physical Properties
Density: Approximately 8.47 g/cm³.
Melting Point: Between 930°C and 940°C.
Electrical Conductivity: Approximately 27% IACS (International Annealed Copper Standard).
Thermal Conductivity: Approximately 120 W/(m·K).
Modulus of Elasticity: Approximately 105 GPa.
Tensile Strength: Approximately 370 MPa.
Hardness: Approximately HB 80-90 (Brinell hardness).
H68 Brass Application Areas
Electronics and Electrical Industry: The good electrical conductivity of H68 brass makes it an ideal material for manufacturing electronic components such as electrical connectors, terminals, and switches.
Machinery Manufacturing: The high strength and excellent machinability of H68 brass lead to its widespread use in the manufacture of mechanical parts like gears, bearings, nuts, and bolts.
Architectural Decoration: Due to its aesthetically pleasing golden-yellow appearance and corrosion resistance, H68 brass is commonly used in architectural decoration materials, such as door handles, handrails, and decorative panels.
The heat treatment specifications for H68 brass are quite stringent. From hot working to annealing, every step involves strict temperature control, ensuring the stability and optimization of material properties. Specifically:
Hot working temperature: 750–830°C.
Annealing temperature: 520–650°C.
Low-temperature stress relief annealing temperature: 260–270°C.
In summary, as a high-performance, multi-purpose metal material, H68 brass will see even broader application and development in the future.
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Our factory is equipped with an advanced full-process copper processing production line, specializing in the manufacturing of high-precision copper plates, copper tubes, copper rods, copper wires, and copper strips. The core of our production includes continuous casting and rolling units, precision extrusion lines, high-speed cold rolling equipment, multi-roll precision rolling mills, tube drawing systems, and intelligent stretching production lines. We are also outfitted with comprehensive inspection equipment such as spectrometers and online eddy current flaw detectors, ensuring full-process control from smelting and casting, hot processing, to cold finishing. Our products achieve an accuracy of up to ±0.01mm, with an annual production capacity exceeding 50,000 tons. They are widely used in power, electronics, transportation, and high-end manufacturing sectors. Certified with international standards such as ISO9001 and IATF16949, we are capable of providing global customers with one-stop copper material solutions.
Brass product packaging
We implement a graded and customized packaging system: copper plates are double-wrapped with moisture-proof paper and vapor corrosion inhibitor film before being placed in reinforced wooden crates, which are filled with cushioning materials and equipped with impact-resistant corner protectors; copper tubes and rods are sealed with plastic end caps, wrapped with PE protective film, and then layered into steel-frame logistics containers, with EPE pearl cotton separating each layer; copper wires are automatically wound onto spools, vacuum-sealed, covered with waterproof film, and secured on customized iron-wood pallets; copper strips are wrapped with non-woven fabric, coiled onto high-strength steel cores, and placed into waterproof composite material coils with desiccants inside. All packaging passes ISTA-3A transport testing, and the outer boxes are labeled with international hazardous material identifiers, moisture warnings, and scannable logistics codes, ensuring the cargo withstands moisture, impact, and chemical erosion during global transportation.
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