What is H62 brass?
Naming Conventions: In the designation of H62 brass strip, "H" represents the first letter of the Chinese pinyin for "yellow," and the number 62 represents the average copper content in the alloy. Specifically, the copper content of H62 brass ranges from 60.5% to 63.5%, with the remainder being zinc.
Composition: H62 brass strip is primarily composed of copper and zinc, with copper being the dominant component. This alloy composition gives H62 brass strip excellent mechanical and machinability.
Performance Characteristics: H62 brass strip possesses excellent corrosion resistance, strength, and electrical conductivity, making it widely applicable across various industries.
Applications: Due to its excellent overall performance, H62 brass strip is widely used in the manufacture of various parts, decorative items, and electrical connectors.
What is the equivalent grade of H62 brass strip in ASTM standard?
| Standard System | Equivalent Designation for Strip | Relevant Standard Specification |
|---|---|---|
| ASTM (United States) | UNS C28000 | ASTM B36 - Standard Specification for Brass Plate, Sheet, Strip, And Rolled Bar. |
| EN (Europe) | CuZn37 (or CW508L) | EN 1652 - Copper and copper alloys - Plate, sheet and circles for general purposes. |
| JIS (Japan) | C2800 | JIS H3100 - Copper and copper alloy sheets, plates and strips. |
| ISO (International) | CuZn37 | ISO 426-1 - Wrought copper-zinc alloys. |
H62 Brass in Decorative Hardware and Connectors
Because of its endurance, corrosion resistance, and aesthetic appeal, H62 brass is used for making decorative hardware and connectors. The lovely golden color of the H62 brass works well with premium finishing of door handles, cabinet fittings, lighting fixtures, and decorative pieces. It is a malleable material that allows for the development of intricate designs and detailed craftsmanship that smoothly blends with contemporary, traditional, and transitional styles of interior design.
In electrical connectors, H62 brass exhibits good conductivity and mechanical properties. For example, the electrical conductivity of this material is usually around 26-30% IACS, and this makes it suitable only for low to medium electric applications. H62 brass's corrosion resistance will give the connectors longevity when exposed constantly to weathering or mechanical stress in applications like automotive or industrial wiring systems.
Recent market data show that brass parts like H62 are preferred as industries searching for the fusion between functionality and aesthetic value. Industry reports further predict a robust growth rate for the global brass fittings market owing to the presence of these materials in both residential and commercial construction applications, mainly because of their durability and aesthetic appeal.
With the help of its distinct properties, H62 brass maintains its prestige as a high-end material for decorative hardware and functional connectors, placing emphasis on performance with esteemed visual recognition.
Mechanical and Physical Properties
|
Property |
Value |
|---|---|
|
Tensile Strength (MPa) |
370 - 420 |
|
Yield Strength (MPa) |
260 - 300 |
|
Elongation (%) |
10 - 15 |
|
Hardness (Vickers) |
100 - 140 VHN |
|
Hardness (Rockwell B) |
60 - 80 HRB |
|
Density (g/cm³) |
8.4 - 8.5 |
|
Thermal Conductivity (W/m·K) |
120 - 150 |
|
Corrosion Resistance |
Good |
|
Wear Resistance |
Moderate to Good |
Tensile Strength and Yield Strength
H62 brass, as a commonly used alloy, displays a tensile strength typically in the range of 370 to 420 MPa. This metric indicates the maximum stress that H62 brass can withstand while being stretched or pulled before breaking. The yield strength, generally between 260 to 300 MPa, marks the stress at which a permanent deformation of 0.2% of the original dimension occurs. These properties make H62 brass suitable for applications requiring moderate strength and good formability.
Elongation and Hardness (Vickers and Rockwell)
The elongation of H62 brass, which typically lies between 10% and 15%, reflects its ability to undergo plastic deformation prior to fracturing. This measure is crucial for processes involving bending and forming. In terms of hardness, the alloy is assessed via the Vickers and Rockwell (B scale) hardness tests, with typical values ranging from 100 to 140 VHN and 60 to 80 HRB, respectively. This hardness level contributes to the alloy's resistance to surface wear and deformation under load.
Density and Thermal Conductivity
H62 brass has a density of approximately 8.4 to 8.5 g/cm³, influencing its weight and structural applications where mass is a consideration. Its thermal conductivity, important in applications such as heat exchangers and radiator components, typically spans from 120 to 150 W/m·K. This high thermal conductivity facilitates the efficient transfer of heat, beneficial in cooling systems and other thermal applications.
Corrosion Resistance and Wear Resistance
The corrosion resistance of H62 brass is characterized by its ability to withstand degradation from environmental exposure, including from moisture and atmospheric conditions. This property is particularly enhanced by its zinc content, which contributes to the formation of a protective oxide layer. Wear resistance in H62 brass is considered moderate to good, making it suitable for components that experience regular physical contact and friction, ensuring longevity and reliability in such applications.
What is the difference between H62 and H59 brass?
|
Property |
H62 Brass |
H59 Brass |
|---|---|---|
|
Copper Content |
60.5-63.5% |
59-62% |
|
Zinc Content |
Balance |
Balance |
|
Tensile Strength |
290-360 MPa |
315-350 MPa |
|
Yield Strength |
Moderate |
Higher |
|
Hardness |
Moderate |
Higher |
|
Ductility |
Higher, better formability |
Good, but slightly less |
|
Corrosion Resistance |
Excellent, slightly better in harsh environments |
Excellent, but marginally lower |
|
Thermal Conductivity |
High |
High |
|
Electrical Conductivity |
High |
High |
|
Cost |
Slightly higher |
Slightly lower |
|
Common Applications |
Electrical components, ammunition casings, decorative arts |
Machine parts, welding parts, hot stamping, electrical appliances, electronics, lighting, hardware |
|
Formability |
Better machinability and formability |
Good, but slightly less |
|
Hot Working Temperature |
650-850°C |
730-820°C |
|
Annealing Temperature |
600-670°C |
600-670°C |
|
Standards |
GB H62, C28000, CuZn38 |
GB H59, C37700 |
How to Choose the Right H62 Brass?
When to Choose H62 Brass
Corrosive Environments:
If your application will be exposed to marine or coastal environments, H62 brass's excellent corrosion resistance makes it a suitable choice.
High Formability Needs:
Choose H62 brass if your project requires extensive forming, bending, or drawing. Its high ductility allows for intricate shapes and designs.
Aesthetic Requirements:
For applications where appearance is important, such as decorative arts or architectural elements, H62 brass's attractive golden color and ability to take on various finishes make it ideal.
Electrical Applications:
H62 brass is a good choice for electrical components due to its excellent electrical conductivity.
Moderate Mechanical Strength:
If your application requires moderate mechanical strength without sacrificing formability, H62 brass provides a good balance.
Regulatory Compliance:
Opt for H62 brass if you need to meet stringent regulatory requirements regarding lead content, as it has lower lead levels compared to other brass alloys.
Cost Considerations:
While H62 brass is slightly more expensive than some other brass alloys, its benefits in terms of corrosion resistance and formability can justify the cost for specific applications.
Our product range
1. Pure Copper (Sheet, Tube, Wire)
Primary Grades: T1 (C11000), T2 (C10100). We prioritize C11000 (T1) for its excellent conductivity.
Standards: ASTM B152 (Sheet), ASTM B75/B88 (Tube), ASTM B1/B3 (Wire), EN, JIS, GB/T.
Typical Sizes:
Tube: OD 6mm – 200mm.
Sheet: Thickness 0.5mm – 50mm.
Wire: Diameter 1.0mm – 10mm.
2. Phosphorus Deoxidized Copper (Tube, Sheet)
Primary Grades: TP1 (C12000 / CW023A), TP2 (C12200). Ideal for welding and plumbing.
Standards: ASTM B188, ASTM B75/B88, EN 12451, JIS H3300.
Typical Sizes:
Tube: OD 8mm – 150mm.
Sheet: Thickness 1.0mm – 30mm.
3. Brass (Strip & Coil)
Primary Grades: H96, H68, H62 (CuZn37 / C28000). We strongly recommend H62 for its excellent balance of strength and machinability.
Standards: ASTM B36, ASTM B134, EN 1652, JIS H3100.
Typical Sizes:
Strip/Coil: Thickness 0.1mm – 3.0mm, Width up to 600mm.
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Our factory
Our facility is equipped with industry-advanced continuous casting and rolling production lines, precision rolling mills, multi-pass drawing units, and automated forming equipment, enabling efficient and stable transformation from copper rods to finished products. Our core machinery allows us to flexibly manufacture a full range of grades-including pure copper (e.g., C11000/T1), phosphorus deoxidized copper (e.g., C12200/TP2), and brass (e.g., H62)-in the form of sheets, tubes, rods, strips, and wires. We also provide tailored processing services such as cutting, slitting, and precision finishing.
