What is H62 brass?
H62 brass, a classic copper-zinc alloy, plays a vital role in industrial production and daily life due to its excellent mechanical properties, machinability, and corrosion resistance. This alloy, containing 60.5%–63.5% copper and the balance of zinc, exhibits unique comprehensive properties through reasonable component ratios and process control, leading to its continuously expanding applications and making it an indispensable basic material in modern manufacturing.
H62 Brass alloy Equivalent grade
| Country/Standard | Standard Designation | Common Name / Description |
|---|---|---|
| China (GB) | H62 | - |
| USA (ASTM/UNS) | C28000 | Muntz Metal (60.0-63.0% Cu) |
| Japan (JIS) | C2800 | Brass 60% |
| European Union (EN) | CuZn40 | CW508N (Numerical Designation) |
| International (ISO) | CuZn40 | - |
| United Kingdom (BS) | CZ109 | - |
| Germany (DIN) | CuZn40 | 2.0360 (Material Number) |
| Russia (GOST) | Л60 | - |
H62 Brass Datasheet
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 |
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Applications of H62 Brass
H62 is used to make all kinds of stuff. People use it to make brass tile trims, profiles, plumbing fittings, electrical connectors, and decorative hardware of all types. In the construction industry, people like to use H62 because it's strong and doesn't corrode outside. That makes it useful for architectural fittings and trims. In the electrical industry, they use it for terminals and connectors because of its good conductivity.
What are the Advantages of Using H62 Brass?
H62 brass offers several advantages, including high corrosion resistance, excellent machinability, and good wear resistance. It's cost-effective for many applications. It holds up a long time mechanically so it'll do what you need it to. H62 is a good, adaptable alloy, because it's one of those brass alloys that works well. It's a great all-around option, so use it.
Corrosion Resistance And Durability
I learned in a previous project that H62 brass performs particularly well in terms of corrosion resistance. It has strong corrosion resistance in atmospheric and freshwater environments , and is not easy to rust or corrode after long-term use. Compared with H59 brass, H62 brass has stronger corrosion resistance, so it performs better in situations exposed to more severe environments.
If we want to produce car radiators and ship parts , we can choose H62 brass. These parts usually need to withstand long-term humid environments and high temperature and high pressure environments , so the corrosion resistance of H62 brass ensures that they can be used for a long time without being damaged by environmental factors.
H62 vs H59 Brass
| Feature / Property | H62 Brass | H59 Brass |
|---|---|---|
| Copper (Cu) Content | 60.5 - 63.5% | 57.0 - 60.0% |
| Zinc (Zn) Content | Balance (~36.5-39.5%) | Balance (~40.0-43.0%) |
| Common Name | 60/40 Brass, "High Copper" Brass | 59/41 Brass, "Common" or "Commercial" Brass |
| Microstructure | α (Alpha) Phase dominant. More single-phase structure. | α+β (Alpha+Beta) Dual Phase. Higher β-phase content. |
| Color | Rich, reddish-gold (closer to pure copper). | Lighter, more yellowish-gold (closer to gold). |
| Key Mechanical Properties | Higher ductility and toughness. Better for cold working. | Higher strength and hardness. Better for hot working. |
| Cold Workability | Excellent (Superior). Ideal for bending, deep drawing, stamping at room temp. | Fair to Good. More prone to cracking during severe cold forming. |
| Hot Workability | Good. | Excellent (Superior). The β-phase makes it very forgeable at high temps. |
| Machinability | Good. | Better than H62. The harder β-phase creates cleaner chips. |
| Corrosion Resistance | Slightly Better due to higher copper content. | Good, but slightly lower than H62. |
| Price | Slightly Higher (more copper). | Slightly Lower (less copper). |
| Common Equivalent | UNS C28000, CuZn40 | UNS C27000, CuZn37 |
How to Choose: H62 vs H59
Choose H62 Brass If:
Primary Process is Cold Working: You need excellent ductility for processes like:
Deep Drawing (e.g., cartridge cases, complex enclosures).
Bending and Stamping at room temperature (e.g., terminals, connectors, nameplates).
Cold Heading (e.g., rivets, screws where severe cold deformation is needed).
You Prioritize Ductility & Corrosion Resistance: For parts that require high toughness and good resistance to stress corrosion cracking.
Appearance is Critical: Its richer, more "coppery" color is often preferred for decorative hardware, architectural trim, and musical instruments.
Choose H59 Brass If:
Primary Process is Hot Working: You require excellent hot forgeability for:
Hot Stamping and Forging (e.g., valves, pipe fittings, plumbing fixtures).
Extrusion at elevated temperatures.
You Prioritize Strength & Hardness: For structural components or parts that need to withstand higher mechanical stress and wear.
Cost is a Significant Factor: It's generally more economical due to lower copper content.
Machinability is Important: It generally offers slightly better chip formation during turning, milling, etc.
Our factory
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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