H68 Brass is a High-Strength, Multi-Purpose Alloy

H68 brass is a high-strength, multi-purpose alloy material, primarily composed of copper and zinc. The mass fraction of copper is approximately 68%, and that of zinc is about 32%. This composition enables the alloy to possess good corrosion resistance and machinability while ensuring mechanical strength.

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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 has excellent cold and hot working performance, demonstrating good plasticity during cold stamping and hot forming processes. This makes H68 brass particularly suitable for manufacturing complex-shaped parts, such as those used in precision machinery and automotive accessories.

Electronics and Electrical Industry: Its good electrical conductivity makes it an ideal material for manufacturing electronic components such as electrical connectors, terminals, and switches.

Machinery Manufacturing: Its high strength and excellent machinability lead to its widespread use in manufacturing mechanical parts like gears, bearings, nuts, and bolts.

Architectural Decoration: Its aesthetically pleasing golden-yellow appearance and corrosion resistance make it commonly used in architectural decoration materials, such as door handles, handrails, and decorative panels.

Automotive and Aerospace Industries: Used in the production of critical components such as engine parts, connectors, and valves.

Precision Machinery Manufacturing: Often used to make precision mechanical parts such as gears, bearings, and screws.

Plumbing Pipes and Fittings: Its good corrosion resistance makes it suitable for components like valves and pipe fittings in plumbing systems.

H68 brass has a very low lead content (≤0.03%), complying with current environmental standards. This makes it an ideal choice for many industries requiring low-lead materials, meeting environmental, health, and safety requirements.

Copper (Cu): 67.0–70.0%

Zinc (Zn): Balance

Lead (Pb): ≤0.03%

Phosphorus (P): ≤0.01%

Iron (Fe): ≤0.10%

Bismuth (Bi): ≤0.005%

Impurities: ≤0.3%

Hot working temperature: 750–830°C

Annealing temperature: 520–650°C

Low-temperature stress relief annealing temperature: 260–270°C

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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.

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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