What is H62 brass?
H62 brass is a high-quality copper-zinc alloy. It contains 62% copper and 38% zinc. H62 brass has great corrosion resistance, mechanical strength, and workability. That's why people use it in all kinds of industrial applications.
Performance Characteristics of H62 Brass Strip
Excellent Mechanical Properties
H62 brass strip exhibits high strength and hardness while maintaining good ductility, making it suitable for cold-working processes such as stamping and bending. Its tensile strength typically ranges from 300 to 400 MPa, with an elongation of over 15%, enabling widespread applications in electronic appliances, hardware products, and other fields.
Good Electrical and Thermal Conductivity
Owing to the high electrical and thermal conductivity of copper, H62 brass strip performs exceptionally well in heat dissipation components and conductive connectors. Although the addition of zinc slightly reduces electrical conductivity, H62 achieves an optimal balance between cost and performance compared to pure copper.
Corrosion Resistance and Limitations
H62 brass strip demonstrates good corrosion resistance in dry environments and neutral media. However, it may undergo dezincification corrosion in humid or chlorine-containing environments. Therefore, in marine or chemical applications, surface coatings or alloying treatments are required to enhance its corrosion resistance.
Machinability and Adaptability
H62 brass strip is easy to weld, braze, and machine. It exhibits significant cold-working hardening effects, and its plasticity can be restored through annealing processes, making it suitable for manufacturing complex-shaped components.
H62 Brass Data sheet
H62 Brass Chemical Composition
|
Element |
Cu |
Zn |
Pb |
Fe |
Total Impurities |
|
Content (%) |
60.5-63.5 |
Remainder (approx. 36.5%-39.5%) |
≤0.08 |
≤0.15 |
≤0.5 |
Physical Properties
|
Property Parameter |
Value |
Remarks |
|
Density |
8.43-8.47 g/cm³ |
Lightweight design advantage |
|
Conductivity |
Approx. 22% IACS |
Meets general conductivity requirements |
|
Thermal Conductivity |
115-120 W/(m·K) |
Suitable for heat dissipation components |
|
Linear Expansion Coefficient |
20.6×10⁻⁶/℃(20-300℃) |
Good thermal stability |
|
Melting Point |
905-930℃ |
Good casting fluidity |
Mechanical Properties
|
Property Parameter |
Value |
Testing Conditions |
|
Tensile Strength (σb) |
330-600 MPa |
Significant variation depending on the processing state (M/Y) |
|
Elongation (δ10) |
≥10% (hard state) |
Can reach 45% in soft state |
|
Hardness (HB) |
80-110 |
Higher hardness in the hard state |
|
Annealing Temperature |
550-650℃ (normal annealing) |
To eliminate work hardening |
Main Application Fields of H62 Brass
Automotive Industry
Used in the manufacturing of critical components such as cooling system parts, fuel injectors, pipes, and fittings. Its excellent machinability allows these components to meet the automotive industry's stringent requirements for precision and reliability.
Shipbuilding Industry
Applied in the production of nuts, bolts, and pipe fittings. H62 brass's corrosion resistance makes it suitable for marine environments, offering good performance against salt spray corrosion.
Electrical and Electronics Industry
Utilized in the fabrication of terminal blocks, conductive busbars, and electrode copper. H62 brass demonstrates stable electrical conductivity in electrical connections while maintaining certain mechanical strength.
Precision Machinery
Widely used in the production of high-precision components such as bushings, gears, and valve assemblies. Its excellent dimensional stability and machining adaptability ensure high-quality parts.
Hardware Manufacturing
Suitable for producing bolts, nuts, fasteners, and other hardware components. Its combination of cold and hot workability reduces manufacturing costs and enhances production efficiency.
FAQ
| 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%. |
| What is H62 brass strip used for? H62 brass strip is widely used in architectural decoration, electrical terminals, heat exchangers, hardware components, and ammunition casings due to its good strength, formability, and corrosion resistance. |
brass strip production process
Our factory
Our manufacturing facility is a modern, vertically integrated copper processing plant specializing in high-performance copper and copper alloy products. Equipped with advanced extrusion, rolling, drawing, and finishing lines, the plant produces a full range of materials conforming to international standards such as ASTM, EN, and DIN, including tubes, plates, bars, wires, and foils. Our plant strictly adheres to the ISO 9001 certified quality management system and has an in-house laboratory capable of conducting stringent chemical, mechanical, and cleanliness tests. We place a strong emphasis on customization, traceability, and on-time delivery, serving a wide range of industries worldwide, including HVAC, electrical engineering, construction, medical technology, and automotive manufacturing.
