When it comes to materials that offer a balanced combination of strength, corrosion resistance, และ workability, CuZn10 stands out as a versatile brass alloy. With 90% copper and 10% zinc, this alloy is often referred to as C22000 in the Unified Numbering System (UNS). Its intuitive composition makes it a popular choice across various industries, including electronics, construction, automotive, and even decorative arts.
But what exactly makes CuZn10 so special? What are its key properties, and how does it compare to other brass alloys? In this comprehensive guide, we’ll explore everything you need to know about CuZn10, including its composition, mechanical properties, applications, การกำหนดราคา, and much more. Whether you’re an engineer evaluating materials for a project or simply curious about the metal, this guide will provide in-depth, SEO-optimized information to help you make informed decisions.
ภาพรวม
CuZn10, often called red brass or 90/10 brass, is a low-zinc brass alloy primarily composed of copper and zinc. Its high copper content gives it a reddish-gold color, which can be aesthetically pleasing for decorative applications. Despite its lower zinc content compared to other brass alloys, CuZn10 exhibits excellent strength, ductility, และ corrosion resistance.
One of the most notable characteristics of CuZn10 is its ease of cold working. This means the alloy can be easily drawn, bent, or rolled without losing its structural integrity, making it a preferred choice in industries requiring precision forming. Additionally, CuZn10 has good electrical conductivity, though it’s not as conductive as pure copper, making it suitable for certain electrical components.
Key Features :
- High formability: Easily cold-worked without cracking or losing strength.
- ความต้านทานการกัดกร่อน: Performs well in mild environments and freshwater.
- Aesthetic appeal: Its reddish-gold color is ideal for decorative uses.
- การนำไฟฟ้าที่ดี: Suitable for electrical connectors and terminals.
- Moderate strength: Provides a balance of strength and ductility.
Composition and Properties
The composition of CuZn10, which includes 90% copper and 10% zinc, directly influences its mechanical properties, electrical conductivity, และ corrosion resistance. Let’s take a closer look at the specific elements that make up CuZn10 and how they contribute to its overall performance.
องค์ประกอบทางเคมี
| องค์ประกอบ | Percentage (%) |
|---|---|
| ทองแดง (Cu) | 89.0 – 91.0 |
| สังกะสี (Zn) | Balance (~9.0 – 11.0) |
| Lead (Pb) | ≤ 0.05 |
| Iron (Fe) | ≤ 0.05 |
| Other elements | Trace amounts |
The high copper content in CuZn10 enhances its corrosion resistance and workability, while the zinc contributes to strength and ductility. The trace amounts of lead and iron are kept minimal to ensure the alloy’s machinability and durability in various applications.
Mechanical and Physical Properties
| คุณสมบัติ | ค่า |
|---|---|
| แรงดึง | 200 – 300 MPa |
| ความแข็งแรงของผลผลิต | 80 – 120 MPa |
| การยืดตัว | 40 – 50% |
| ความหนาแน่น | 8.87 g/cm³ |
| ความแข็ง | 50 – 70 HB |
| การนำความร้อน | 120 W/m·K |
| การนำไฟฟ้า | 28% IACS |
| จุดหลอมเหลว | 900 – 950°C |
These properties make CuZn10 a ductile, corrosion-resistant, และ formable alloy, suitable for multiple industries that require both mechanical performance and aesthetic appeal.
แอปพลิเคชัน
Thanks to its high formability, corrosion resistance, และ attractive appearance, CuZn10 is used in a wide variety of industries. Below is a detailed breakdown of the most common applications for CuZn10.
แอปพลิเคชันทั่วไป
| อุตสาหกรรม | แอปพลิเคชันทั่วไป |
|---|---|
| Architecture | Decorative panels, door handles, and fixtures |
| อิเล็กทรอนิกส์ | Connectors, terminals, and low-voltage electrical components |
| เกี่ยวกับยานยนต์ | Radiator cores, fuel system components, and gaskets |
| Plumbing | Tubing, fittings, and faucets |
| นาวิกโยธิน | Decorative items for boats and interior components |
| Jewelry | Chains, rings, and brooches |
| Musical Instruments | Brass wind instruments, bells, and cymbals |
CuZn10’s unique combination of strength and workability allows it to be adapted to a variety of tasks, from architectural detailing to musical instruments. Let’s dive deeper into some of these applications:
- Architecture: CuZn10’s reddish-gold hue makes it a favorite for ornamental fixtures in both modern and classic designs. Its resistance to corrosion ensures long-lasting durability, even in outdoor settings.
- อิเล็กทรอนิกส์: The alloy’s moderate electrical conductivity makes it suitable for low-voltage applications such as connectors and terminals. While it may not be as conductive as pure copper, it offers good durability, which is essential in environments prone to wear and tear.
- Plumbing: Known for its corrosion resistance, CuZn10 is often used in faucets, pipes, และ plumbing fittings, particularly in freshwater systems. Its ability to withstand oxidation ensures it doesn’t degrade quickly, maintaining the integrity of the plumbing system.
- Jewelry: CuZn10’s reddish color makes it an ideal material for cost-effective jewelry. It offers a rich appearance similar to gold and can be easily worked into intricate designs.
Specifications, Sizes, and Standards
Understanding the standards and sizes available for CuZn10 is crucial for ensuring it fits the specific needs of your project. Below is a comprehensive breakdown of the most common specifications, sizes, and international standards applicable to CuZn10.
Common Standards and Sizes
| มาตรฐาน | คำอธิบาย |
|---|---|
| ASTM B36 | Specification for brass plates, sheets, and strips |
| EN 1652 | European standard for copper and copper alloys in strip form |
| DIN 17660 | German standard for brass alloys for general use |
| JIS H3250 | Japanese standard for brass plates and strips |
| ISO 431 | International standard for brass alloy compositions |
Available Forms and Sizes
| รูปร่าง | ช่วงขนาด |
|---|---|
| Rods | Diameter: 5 mm to 100 mm |
| Sheets/Plates | Thickness: 0.5 mm to 30 mm |
| Tubes | Diameter: 6 mm to 150 mm |
| Wires | Diameter: 0.5 mm to 10 mm |
Custom Size Availability
Many suppliers offer custom sizes for CuZn10 to meet specific project needs, ensuring that the alloy can be tailored to fit unique dimensions and shapes. Whether you’re working on a large-scale architectural project or small electrical components, you can often request cut-to-size pieces from suppliers.
Price and Suppliers
The cost of CuZn10 can vary depending on factors such as market conditions, order quantity, และ supplier location. Below, we look at some typical suppliers and the pricing details for CuZn10, helping you to make informed purchasing decisions.
ซัพพลายเออร์และราคา
| ผู้จัดหา | ที่ตั้ง | Price Range (per kg) | เวลานำ |
|---|---|---|---|
| KME Germany | ประเทศเยอรมนี | $9 – $13 | 2-4 weeks |
| Aviva Metals | สหรัฐอเมริกา | $10 – $14 | 1-3 weeks |
| Shanghai Metal Corporation | จีน | $8 – $12 | 3-5 weeks |
| Smiths Metal Centres | สหราชอาณาจักร | £7 – £11 | 1-2 weeks |
Factors Influencing CuZn10 Pricing
Several factors affect the pricing of CuZn10, including:
- Copper Market Prices: Since CuZn10 is primarily composed of copper, fluctuations in copper prices significantly impact the cost of the alloy.
- สั่งซื้อปริมาณ: Bulk orders often come with volume discounts, whereas smaller orders may have a higher cost per kilogram.
- Processing Requirements: If your project requires custom cutting, shaping, or surface finishing, these additional services can increase the price.
- Shipping Costs: Depending on the supplier’s location, shipping—especially for large or heavy orders—can add to the overall cost.
Advantages and Limitations
As with any material, CuZn10 has its advantages and limitations. Understanding both sides of the equation will help you determine if it’s the right material for your project.
Advantages and Limitations
| Advantages | ข้อ จำกัด |
|---|---|
| High formability: it can be easily cold-worked into complex shapes, making it ideal for decorative and functional uses. | Moderate strength: While it offers good strength, it is not suitable for high-stress applications that require greater tensile strength. |
| ความต้านทานการกัดกร่อน: Performs well in freshwater systems and mild atmospheric conditions. | Not ideal for marine environments: CuZn10 may corrode more quickly in saltwater or highly corrosive environments. |
| Aesthetic appeal: The reddish-gold color makes it attractive for decorative applications like jewelry and architectural detailing. | Lower electrical conductivity: It offers moderate conductivity, but purity copper alloys are better suited for high-performance electrical applications. |
| Cost-effective: CuZn10 provides a balance between performance and price, making it an affordable option for a wide range of applications. | Lower machinability: Compared to leaded brasses (e.g., CuZn39Pb3), CuZn10 is more difficult to machine, which can increase production costs in certain applications. |
CuZn10 vs. Other Brass Alloys
When choosing a brass alloy for your project, it’s essential to understand how CuZn10 compares to other alloys in terms of strength, workability, corrosion resistance, และ cost. Below is a detailed comparison of CuZn10 with other common brass alloys.
CuZn10 Compared to Other Brass Alloys
| อัลลอยด์ | CuZn10 | CuZn30 (C26000) | CuZn37 (C26800) | CuZn39Pb3 (C38500) |
|---|---|---|---|---|
| Copper Content | 90% | 70% | 63% | 60% |
| แรงดึง | 200 – 300 MPa | 300 – 400 MPa | 300 – 450 MPa | 300 – 450 MPa |
| Formability | ยอดเยี่ยม | ดี | ปานกลาง | ปานกลาง |
| ความต้านทานการกัดกร่อน | ดี | ดี | ปานกลาง | ปานกลาง |
| ความสามารถกล | ปานกลาง | ดี | ยอดเยี่ยม | ยอดเยี่ยม |
| Aesthetic Appeal | สูง | สูง | ปานกลาง | ปานกลาง |
Key Comparisons:
- CuZn10 vs. CuZn30: CuZn30 has a higher tensile strength and is better suited for high-stress applications, but CuZn10 offers superior formability and corrosion resistance, making it ideal for decorative and freshwater applications.
- CuZn10 vs. CuZn37: CuZn37, also known as cartridge brass, is more machinable, but CuZn10 has better corrosion resistance and is easier to form into complex shapes.
- CuZn10 vs. CuZn39Pb3: CuZn39Pb3, a leaded brass, is easier to machine, but CuZn10 offers better aesthetic qualities and formability, making it the preferred choice for applications where appearance is critical.
คำถามที่พบบ่อย (คำถามที่พบบ่อย)
To wrap up this comprehensive guide, here are some of the most frequently asked questions about CuZn10.
| คำถาม | คำตอบ |
|---|---|
| What is it used for? | It is commonly used in decorative applications, plumbing, electrical components, และ automotive parts due to its corrosion resistance and formability. |
| Is it lead-free? | Yes, it is considered a lead-free alloy, making it suitable for environmentally sensitive applications, such as drinking water systems. |
| How does CuZn10 compare to CuZn30? | It is more formable and corrosion-resistant, while CuZn30 offers higher strength and is better suited for mechanical applications. |
| Can it be used in marine environments? | It is not recommended for marine environments as it may corrode more quickly in saltwater. Naval brass or bronze are better options for marine use. |
| What is the tensile strength of CuZn10? | It has a tensile strength ranging from 200 to 300 MPa, depending on the condition and form of the material. |
| Is it good for electrical applications? | It offers moderate electrical conductivity and is suitable for low-voltage applications, but it is not ideal for high-performance electrical systems. |
| Can it be deep drawn? | Yes, it is highly formable and can be easily deep drawn and cold worked without cracking or losing strength. |
บทสรุป
In conclusion, it is a versatile brass alloy with a wide range of applications across multiple industries. Whether you’re looking for a material that offers high formability, good corrosion resistance, or an aesthetic appeal for decorative purposes, it delivers on all fronts. While it may not be the best option for marine environments or high-stress applications, its cost-effectiveness and ease of use make it an excellent choice for architectural, plumbing, electrical, และ decorative applications.
As you evaluate materials for your next project, consider how CuZn10’s unique properties can meet your specific needs, from its workability to its long-lasting durability. Whether you’re crafting jewelry, building electrical components, or designing architectural features, it is a dependable and attractive choice for a wide range of uses.
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