What is H62 brass?
H62 brass is known as a copper zinc alloy with a composition of 62 percent copper and 38 percent zinc. This alloy has good corrosion resistance, decent strength, and good versatility. Due to its durability and workability, it is used in the automotive, aerospace, and general manufacturing industries, especially in the production of precision components and tools.
H62 brass material properties
1. Mechanical Properties
Strength: It offers good strength and hardness, superior to pure copper and single-phase (alpha) brasses like C26000 (70/30 brass). Its tensile strength typically ranges from 330-400 MPa in the annealed condition and can be increased significantly through cold working.
Ductility & Formability: While ductile, it is less formable at room temperature than alpha brasses due to the presence of the harder beta phase. It exhibits excellent hot workability and is ideally suited for processes like hot forging, extrusion, and stamping.
Machinability: Rated "good" (around 30% on the free-cutting brass scale). The beta phase improves chip-breaking compared to softer alpha brasses, resulting in better machinability for automated processes.
2. Physical & Chemical Properties
Corrosion Resistance: Shows good resistance to atmospheric corrosion, fresh water, and seawater (dezincification can be a concern in specific aggressive environments). It also resists corrosion from many organic compounds and is generally non-magnetic.
Electrical & Thermal Conductivity: Lower than pure copper but still offers reasonable conductivity for many electrical and heat exchange applications (e.g., non-critical electrical components, heat exchanger plates).
Color: Has a distinctive rich, golden-yellow color, which contributes to its aesthetic appeal for decorative hardware and architectural applications.
3. Primary Manufacturing Processes
H62 is exceptionally versatile and can be processed by:
Hot Working: Excellent suitability for hot forging, hot rolling, and hot extrusion.
Cold Working: Can be cold drawn, rolled, or bent, but requires more force and intermediate annealing compared to alpha brasses.
Joining: Can be easily soldered, brazed, and welded using standard techniques.
Typical Applications of H62 Brass
Architectural Hardware: Hinges, locks, door handles, and decorative fittings.
Industrial Components: Valves, pump parts, gears, and heavy-duty fasteners.
Electrical: Connectors, terminals, and non-critical conductive parts.
Consumer Goods: Plumbing fixtures, musical instrument components, and ammunition casings.
Heat Exchangers: Plates and sections in certain thermal applications.
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Comparative Analysis with Other Brasses
Compared to other brass alloys, H62 offers a good balance between cost and performance. For instance, while H70 brass, with a higher copper content, offers better corrosion resistance and electrical conductivity, H62 is more economical and has sufficient properties for many applications. Conversely, alloys with higher zinc content, such as H59, may offer better machinability but at the cost of reduced corrosion resistance. The choice of brass alloy depends on the specific requirements of the application, with H62 being a versatile option for general-purpose use.
FAQ
| Is H62 brass better than 360 brass? H62 Brass: Offers good strength, ductility, and corrosion resistance, making it suitable for forming and bending operations. 360 Brass: Known for its exceptional machinability due to the added lead, but it is slightly less ductile compared to H62. |
| What is the difference between H65 and H62 brass? H62 brass, with slightly lower copper content, is versatile and widely used in plumbing, electrical components, and hardware. In contrast, H65 brass boasts higher tensile strength, better corrosion resistance, and superior machinability, making it ideal for decorative items, musical instruments, and radiator cores. |
| What is the difference between H59 and H62 brass? Their primary differences lie in their composition; H59 contains slightly less copper, making it more malleable but less corrosion-resistant than H62, which contains higher levels of copper for increased durability and environmental resistance. |
| What is H62? H62 is a brass-zinc alloy containing 60.5–63.5% brass. It has good mechanical properties and electrical conductivity. Although cost-effective, it is susceptible to dezincification corrosion, making it suitable mainly for general structural parts. |
| What is the tensile strength of H62 brass? Tensile strength ≥ 330 MPa, elongation ≥ 10% (in the hard state), excellent cold/hot working performance. Suitable for processes such as stamping, drawing, forging, etc. |
| Is H62 brass machinability? Yes, H62 brass has good machinability, but it is not in the top tier of "free-machining" brasses. Its rating is typically around 40% on the industry-standard scale where free-cutting brass C36000 (CZ121/Alloy 360) is rated at 100%. |
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Our modern production base is equipped with advanced full-process production lines dedicated to the manufacturing of copper and copper alloy products. The factory features precision smelting, continuous casting, high-pressure extrusion, high-speed rolling, and precision cutting equipment, ensuring strict control over every step from copper ingot to finished product. We possess strong R&D and customization capabilities, enabling us to produce various specifications and tempers of copper tubes, plates, rods, wires, and ultra-thin foils in accordance with international standards (such as ASTM, EN, JIS) and specific customer requirements. Our products are widely used in various industries, including refrigeration, electronics, power, transportation, and construction.
Copper product packaging
We fully understand that secure packaging is essential for the flawless delivery of products. Tailored to the characteristics of different products, we employ customized professional packaging solutions: copper tubes and rods are typically secured with anti-rust inner liners and sturdy wooden crates or iron-frame boxes to prevent impact and deformation during transit; copper plates, strips, and foils are first covered with protective film, placed in a dry environment, wrapped with waterproof paper and moisture-proof materials, and finally packed into reinforced plywood crates or steel coil boxes to effectively resist moisture and mechanical damage; wires are neatly wound onto wooden or steel reels and firmly strapped. All packaging is clearly labeled and compliant with export standards, ensuring that your goods maintain their excellent factory condition even after long-distance sea transportation and multiple handlings.
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