Copper fasteners
Copper fasteners are essential components used across various industries due to their excellent conductivity, corrosion resistance, and strength. They are ideal for electrical, marine, and industrial applications.
Types of Copper Fasteners
Types of copper fasteners with their specific applications:
- Copper Bolts: Used in machinery and marine applications. They offer excellent resistance to corrosion and provide long-lasting durability.
- Copper Nuts: Designed for high conductivity and thermal resistance, they are widely used in electrical systems and heat exchangers.
- Copper Washers: Provide a smooth surface and prevent leaks in plumbing applications, ensuring a secure seal.
- Copper Screws: Ideal for use in electrical enclosures and HVAC systems due to their non-magnetic properties.
- Copper Studs: Commonly used in high-temperature environments such as power plants and industrial machinery.
- Copper Rivets: Used in construction, shipbuilding, and roofing for their strength and corrosion resistance.
Specifications
| Material Grade | Tensile Strength | Yield Strength | Hardness | Corrosion Resistance |
|---|---|---|---|---|
| Copper C101 | 210 MPa | 70 MPa | 45 HB | Excellent |
| Copper C110 | 220 MPa | 75 MPa | 50 HB | Excellent |
Manufacturing Process
Copper fasteners are manufactured using several processes, including:
- Forging for high-strength bolts
- Machining for precision screws and nuts
- Cold forming for large production runs
Maintenance Tips
- Inspect regularly for corrosion and damage
- Clean with copper-specific cleaners
- Apply anti-corrosion coatings
- Ensure proper tightening using suitable tools
Advantages
- High corrosion resistance
- Excellent electrical and thermal conductivity
- Long lifespan with minimal maintenance
- Strong mechanical properties
Applications
- Electrical wiring and grounding systems
- Marine hardware and shipbuilding
- Boilers and heat exchangers
- Water treatment and plumbing systems
- Aerospace and automotive components
Chemical Composition of Copper Fasteners
The chemical composition of copper fasteners depends on the grade of copper used. The most commonly used grades include C101 and C110. Here is a detailed breakdown:
| Element | Copper (C101) | Copper (C110) |
|---|---|---|
| Copper (Cu) | 99.99% | 99.90% |
| Oxygen (O) | 0.0005% | 0.04% |
| Iron (Fe) | 0.005% | 0.005% |
| Lead (Pb) | 0.002% | 0.002% |
| Phosphorus (P) | 0.001% | 0.001% |
Copper C101 is known for its exceptional purity and is often used in electrical applications, while Copper C110 is commonly used in plumbing and industrial applications due to its excellent corrosion resistance.
Copper Grades and Their Properties
| Grade | Composition | Conductivity | Corrosion Resistance | Application |
|---|---|---|---|---|
| C101 | 99.99% Pure Copper | Excellent | Good | Electrical Wiring, Electronics |
| C110 | 99.90% Pure Copper | Very High | Excellent | Plumbing, Industrial Use |
| C122 | 99.90% Copper + Phosphorus | High | Very Good | Heat Exchangers, Gas Lines |
| C182 | Cu-Cr (Copper-Chromium) | Moderate | Good | Electrical Contacts, Welding |
| C280 | Copper-Zinc (Brass) | Moderate | Fair | Plumbing, Decorative |
These grades are selected based on the application's needs, whether it requires high electrical conductivity, corrosion resistance, or mechanical strength.
Copper Nuts
Copper Bolts
Copper Washers
Copper Rivets
Copper Stud