When selecting materials for precision machining, corrosion resistance, และ strength, few brass alloys match the versatility of CuZn35Pb1. This lead-containing brass alloy is renowned for its machinability, making it an ideal choice for industries requiring precision parts like automotive, plumbing, และ electrical components. But what makes CuZn35Pb1 so effective in these applications? How does it stack up against other brass alloys?
In this comprehensive guide, we’ll explore every aspect of CuZn35Pb1—from its composition, properties, และ specifications to its applications, advantages, และ limitations. We’ll also compare it to other alloys to help you make an informed decision about whether it’s the right material for your next project.
ภาพรวม
CuZn35Pb1 is a brass alloy primarily composed of copper (Cu), zinc (Zn), and a small percentage of lead (Pb). The inclusion of lead significantly improves the alloy’s machinability, making it easier to work with in high-precision machining scenarios. CuZn35Pb1 is widely used in industries that require corrosion-resistant, ductile, และ formable materials.
Key Features :
- Excellent machinability due to the lead content, which makes it easier to cut and form without excessive tool wear.
- Moderate strength that balances ductility and durability, allowing it to be used in a variety of applications.
- ความต้านทานการกัดกร่อนที่ดี, particularly in non-aggressive environments like freshwater and mildly acidic conditions.
- High formability, making it ideal for bending, stamping, และ cold working processes.
- Cost-effective, providing a balance between performance and price when compared to higher-end alloys.
Composition and Properties
Understanding the chemical composition and mechanical properties of CuZn35Pb1 is crucial for determining its suitability for specific applications. Below, we’ll break down its composition and dive into the properties that make this alloy stand out.
องค์ประกอบทางเคมี
| องค์ประกอบ | Percentage (%) |
|---|---|
| ทองแดง (Cu) | 63 – 65 |
| สังกะสี (Zn) | 34 – 36 |
| Lead (Pb) | 0.8 – 1.2 |
| Iron (Fe) | ≤ 0.05 |
| Other Elements | Trace amounts |
Mechanical and Physical Properties
| คุณสมบัติ | ค่า |
|---|---|
| แรงดึง | 300 – 450 MPa |
| ความแข็งแรงของผลผลิต | 150 – 300 MPa |
| การยืดตัว | 20 – 30% |
| ความหนาแน่น | 8.5 g/cm³ |
| Hardness (HB) | 80 – 110 HB |
| การนำความร้อน | 120 W/m·K |
| การนำไฟฟ้า | 25% IACS |
| จุดหลอมเหลว | 900 – 950°C |
Notable Properties :
- ความสามารถกล: CuZn35Pb1 is widely recognized for its exceptional machinability, largely due to its lead content. The lead acts as a lubricant during cutting, reducing friction, minimizing tool wear, and allowing for faster production speeds.
- ความต้านทานการกัดกร่อน: Although CuZn35Pb1 offers good corrosion resistance, especially in freshwater and mildly aggressive environments, it is less suitable for seawater applications or highly corrosive conditions.
- Formability: This alloy has excellent cold-working properties. It can be easily shaped through processes such as bending, stamping, และ drawing without fracturing, making it ideal for complex designs.
- Electrical and Thermal Conductivity: While not as conductive as pure copper, CuZn35Pb1 still offers decent electrical and thermal conductivity, making it suitable for low-power electrical components and heat-transfer applications.
แอปพลิเคชัน
CuZn35Pb1’s combination of machinability, strength, และ corrosion resistance makes it highly versatile across a range of industries. Its ability to be easily shaped and machined makes it an ideal choice for precision parts in automotive, plumbing, และ electrical engineering.
แอปพลิเคชันทั่วไป
| อุตสาหกรรม | แอปพลิเคชันทั่วไป |
|---|---|
| เกี่ยวกับยานยนต์ | Fuel connectors, valve bodies, electrical components |
| Plumbing | Fittings, valves, faucets, connectors |
| Electrical | Terminals, connectors, switch components |
| Machinery | Gears, bushings, fasteners |
| การบินและอวกาศ | Hydraulic components, sensor housings |
| เครื่องอุปโภคบริโภค | Decorative hardware, locks, door handles |
Why CuZn35Pb1 Is Preferred for These Applications
- เกี่ยวกับยานยนต์: CuZn35Pb1 provides excellent machinability, making it suitable for fuel connectors and valve bodies. Its corrosion resistance ensures that parts can endure exposure to fluids and gasses in automotive systems.
- Plumbing: The alloy’s resistance to corrosion in freshwater environments makes it a popular choice for fittings, valves, และ faucets. In plumbing, ease of machining and resistance to internal pressure are critical, and CuZn35Pb1 excels in both areas.
- Electrical: With decent electrical conductivity, CuZn35Pb1 is commonly used in terminals and connectors, especially for low-voltage applications. Its machinability ensures that intricate, small components can be made with ease.
- Machinery: CuZn35Pb1’s machinability and moderate strength make it an ideal material for gears, bushings, และ fasteners in machinery where precision and durability are essential.
Specifications, Sizes, and Standards
CuZn35Pb1 is available in various sizes, forms, และ grades to meet the specific requirements of different industries. Below, we’ll outline common specifications and standards for CuZn35Pb1, as well as the forms and sizes typically available.
Common Specifications and Standards
| ข้อมูลจำเพาะ | คำอธิบาย |
|---|---|
| ASTM B16 | Standard for free-cutting brass rod, bar, and shapes |
| EN 12164 | European standard for copper and copper alloys |
| DIN 17660 | German standard for wrought copper alloys |
| JIS H3250 | Japanese standard for brass rods |
Available Sizes and Forms
| รูปร่าง | ช่วงขนาด |
|---|---|
| Rods | Diameter: 5 mm to 150 mm |
| Sheets/Plates | Thickness: 0.5 mm to 50 mm |
| Tubes | Diameter: 6 mm to 100 mm |
| Wires | Diameter: 0.5 mm to 10 mm |
Most suppliers offer cut-to-size services to ensure that the material fits perfectly into your design, allowing for greater flexibility in your manufacturing process.
ซัพพลายเออร์และราคา
Pricing for CuZn35Pb1 can vary based on factors such as the form (e.g., rods, sheets, tubes), supplier location, และ market conditions. Here’s a breakdown of typical pricing ranges and suppliers for it.
ซัพพลายเออร์และราคา
| ผู้จัดหา | ที่ตั้ง | Price Range (per kg) | เวลานำ |
|---|---|---|---|
| ThyssenKrupp | ประเทศเยอรมนี | $10 – $25 | 1-3 weeks |
| Aviva Metals | สหรัฐอเมริกา | $12 – $28 | 2-4 weeks |
| Shanghai Metal Corp | จีน | $8 – $20 | 3-5 weeks |
| Smiths Metal Centres | สหราชอาณาจักร | £9 – £22 | 1-2 weeks |
Factors Influencing CuZn35Pb1 Pricing
- รูปร่าง: Prices vary depending on whether you are purchasing rods, sheets, or tubes. More processed forms (e.g., cut-to-size) tend to be more expensive per kilogram.
- Supplier Location: Shipping costs and import duties often influence prices, especially for international suppliers.
- Market Conditions: Prices for copper and zinc—the primary components of CuZn35Pb1—fluctuate in response to global demand and supply, which can significantly affect the final cost of the alloy.
Advantages and Limitations
Like any material, it has its advantages and limitations. Before selecting it for your project, it’s important to weigh these against your specific requirements.
Advantages and Limitations
| Advantages | ข้อ จำกัด |
|---|---|
| Exceptional machinability: Lead content improves cutting performance and reduces tool wear. | Not suitable for high-corrosion environments: CuZn35Pb1 may not withstand harsh conditions like seawater or aggressive chemicals. |
| ความต้านทานการกัดกร่อนที่ดี: Ideal for freshwater and mildly acidic environments. | Lead content: Some industries, such as food and water distribution, may restrict the use of lead-containing materials. |
| Cost-effective: A balance of performance at a lower cost than higher copper alloys. | Moderate strength: CuZn35Pb1 may not be suitable for high-stress applications where greater strength is required. |
| High formability: Can be easily shaped into complex designs without cracking. | Environmental concerns: The presence of lead raises concerns about environmental impacts during disposal or recycling. |
| Versatile in machining: Excellent for high-precision applications requiring tight tolerances. | Lower electrical conductivity: While decent, it’s not ideal for high-power electrical applications. |
Comparing CuZn35Pb1 with Other Brass Alloys
When choosing the right brass alloy for your project, it’s important to compare CuZn35Pb1 against similar materials to determine which alloy best fits your needs.
CuZn35Pb1 Compared to Other Brass Alloys
| คุณสมบัติ | CuZn35Pb1 | CuZn39Pb1 | CuZn36Pb1 | CuZn37 (CW508L) |
|---|---|---|---|---|
| แรงดึง | 300 – 450 MPa | 320 – 450 MPa | 330 – 470 MPa | 330 – 450 MPa |
| ความสามารถกล | ยอดเยี่ยม | ยอดเยี่ยม | ยอดเยี่ยม | ดี |
| ความต้านทานการกัดกร่อน | ดี | ดี | ดี | ปานกลาง |
| การนำไฟฟ้า | 25% IACS | 26% IACS | 25% IACS | 27% IACS |
| Formability | ยอดเยี่ยม | ดี | ดี | ดีมาก |
Key Comparisons
- CuZn35Pb1 vs. CuZn39Pb1: Both are lead-containing alloys with excellent machinability; however, CuZn39Pb1 has slightly superior corrosion resistance, making it a better option for environments where corrosion protection is more critical.
- CuZn35Pb1 vs. CuZn36Pb1: CuZn36Pb1 offers slightly higher tensile strength, making it better suited for applications requiring more durability. However, CuZn35Pb1 is still the preferred choice for precision machining due to its high lead content and excellent formability.
- CuZn35Pb1 vs. CuZn37: CuZn37 offers better formability, making it ideal for applications requiring significant bending or drawing. However, CuZn35Pb1 is superior in machinability, making it the better choice for high-precision, intricate parts.
คำถามที่พบบ่อย (คำถามที่พบบ่อย)
To help you better understand CuZn35Pb1 and its uses, here are some frequently asked questions along with detailed answers.
| คำถาม | คำตอบ |
|---|---|
| What is CuZn35Pb1 used for? | It is commonly used in automotive parts, electrical connectors, plumbing fixtures, และ machinery components. |
| How much lead is in CuZn35Pb1? | It contains between 0.8% and 1.2% lead, which enhances its machinability. |
| Is CuZn35Pb1 easy to machine? | Yes, it is known for its exceptional machinability, making it ideal for high-precision, intricate parts. |
| Can CuZn35Pb1 be used in potable water systems? | Due to its lead content, it is generally not recommended for potable water systems unless lead-free alternatives are provided. |
| What is the tensile strength of CuZn35Pb1? | It has a tensile strength of around 300 – 450 MPa, depending on the form and processing. |
| Is CuZn35Pb1 resistant to corrosion? | Yes, it offers good resistance to corrosion in freshwater and mildly acidic environments, though it may not perform well in seawater. |
บทสรุป
It is a versatile and highly machinable brass alloy that offers a great balance of strength, corrosion resistance, และ formability. Widely used in industries like automotive, plumbing, และ machinery, it is ideal for applications requiring high-precision parts that can be easily machined.
While it may not be suitable for high-corrosion environments or potable water systems, it excels in freshwater applications and precision machining. Its lead content, while beneficial for machinability, may limit its use in certain industries due to environmental regulations.
By understanding the composition, properties, และ applications of CuZn35Pb1, you can confidently choose this alloy for your next project, knowing that it will provide the performance and durability you need.
Maybe you want to know more about our products, please contact us