Copper Alloy Strip
Copper alloy strip is a strip material made of copper as the matrix and added with other elements. The following are its main application areas and characteristics:
1. Electrical industry
High conductivity application: Used for manufacturing electrical components such as wires and cables, contactors, conductors, etc., such as COPPER 110 copper alloy tape. Due to its high conductivity (conductivity up to 80% IACS) and excellent formability, it can effectively reduce energy loss and extend service life.
Integrated circuit lead frame: Copper interconnect technology can improve chip efficiency and is suitable for the microelectronics field.
2. Industrial manufacturing and mechanical components
Corrosion resistant components: such as chemical pumps, valves, etc. The corrosion resistance of copper alloys makes them excellent in the chemical industry.
Mold materials: Copper beryllium alloy, copper cobalt beryllium alloy, etc. are used for steel die-casting molds, stainless steel deep drawing molds, etc. due to their high strength and high conductivity.
3. Ship and Ocean Engineering
Ship accessories: including heat exchangers, condensers, seawater pipelines, propellers, etc. Copper nickel alloy (Cu Ni) and aluminum bronze are preferred materials due to their resistance to seawater corrosion.
4. Other fields
Building and water supply pipelines: The thermal conductivity and corrosion resistance of copper alloy make it suitable for building water supply systems.
Damping and shock absorption equipment: such as copper manganese alloy (Cu-10Mn-2Al) used for anti vibration components such as submarine propellers, with a damping coefficient exceeding 40%.
The performance of copper alloy strips can be further optimized by adjusting the element ratio (such as adding tantalum, lithium, etc.). For example, the new copper tantalum lithium alloy combines the strength of superalloys and the conductivity of copper at high temperatures, making it suitable for high-end fields such as aerospace.
Why choose us
Our Certificate
ISO9001, ISO14001, ISO45001, IATF16949. UL, CMA, SGS.
Sales Market
We export our products to over 20 countries around the world. These include the United States, countries in Europe, and nations in Southeast Asia.
Our service
Before shipment: Laboratory Test and Bulk Inspection.
Nickle Silver Strip
Nickle Silver Strip produced by KSPARK has excellent corrosion resistance in dry and freshwater environments. It has good corrision resistance resistance in environments containing chlorine, ammonia or strong acids and bases, but slight zinc removal corrosion may still occur due to the presence of a small amount of zinc. Corrosion resistance can be further improved through surface treatments such as plating and passivation.
Nickel Silver Strip Properties
|
Type |
Standard |
Chemistry Composition% |
Size Available |
|||||||
|
Cu |
Pb |
Fe |
Zn |
Ni+Co |
Mn |
Others |
Thinckness |
Width |
||
|
BZn18-18 |
GB |
63.0-66.5 |
≤0.05 |
≤0.25 |
Remains |
16.5-19.5 |
≤0.50 |
≤0.4 |
0.15-3.00mm |
20-400mm |
|
BZn12-26 |
60.0-63.0 |
≤0.03 |
≤0.30 |
Remains |
10.5-13.0 |
≤0.50 |
≤0.85 |
|||
|
BZn15-20 |
62.0-65.0 |
≤0.02 |
≤0.50 |
Remains |
13.5-16.5 |
≤0.30 |
≤0.95 |
|||
|
BZn10-1 |
61.0-63.0 |
0.9-1.1 |
≤0.35 |
Remains |
11.0-13.0 |
≤0.50 |
- |
|||
|
BZn8-1 |
63.0-65.0 |
0.9-1.1 |
≤0.35 |
Remains |
7.5-9.0 |
≤0.50 |
Cu+Sn+P≥99.5 |
|||
|
C7701 |
JIS |
54.0-58.0 |
≤0.03 |
≤0.25 |
Remains |
16.5-19.5 |
≤0.50 |
Cu+Sn+P≥99.5 |
||
|
C7521 |
62.0-66.0 |
≤0.03 |
≤0.25 |
Remains |
16.5-19.5 |
≤0.50 |
Cu+Sn+P≥99.5 |
|||
|
C7351 |
70.0-75.0 |
≤0.03 |
≤0.25 |
Remains |
16.5-19.5 |
≤0.50 |
- |
|||
Benefits of Using Nickel Silver Strip
The use of nickel silver strip offers several key advantages:
Workability
The alloy's malleability and ductility allow for easy forming, bending, and shaping, making it suitable for intricate designs and detailed work.
Corrosion Resistance
Nickel silver exhibits excellent resistance to corrosion and tarnish, ensuring longevity and durability in various environments.
Aesthetic Appeal
The bright, silvery finish of nickel silver strip makes it an attractive option for decorative items, providing the look of silver without the associated cost.
Electrical Conductivity
While not as conductive as pure copper, nickel silver still offers good electrical conductivity, which is beneficial in certain electrical and electronic applications.
Properties
Corrosion and tarnish resistant.
High strength and durability.
Excellent cold forming and deep-drawing properties.
Good machinability and weldability.
High elasticity and good fatigue resistance.
Available dimensions
Bright pre-rolled strips 1 to 2.5 mm.
Precision strip thickness from 0.05 to 1.2 mm.
Strip width from 3.0 to 600 mm, but at least 10 3mes of the strip thickness.
Other widths available on request.
Applications of Nickel Silver Strip
Nickel silver strip finds application across a wide range of industries, including:
Musical Instruments
The alloy is widely used in the manufacture of musical instruments, such as flutes, saxophones, and clarinets, due to its acoustic properties and attractive finish.
Jewelry and Decorative Items
Nickel silver is a popular choice for making affordable jewelry, cutlery, and decorative objects. Its ability to mimic the appearance of silver makes it a cost-effective alternative.
Electronics
In the electronics industry, nickel silver strip is used for connectors, contacts, and terminals, where its combination of conductivity and corrosion resistance is advantageous.
Automotive and Aerospace
The alloy's durability and resistance to environmental factors make it suitable for various components in the automotive and aerospace sectors, including fittings and trim.
The surface finish affects both the visual appeal and functional performance of the nickel silver strip:
Polished (Mirror Finish): Offers a high-gloss, reflective surface ideal for jewelry and decorative elements. However, it shows fingerprints, scratches, and oxidation more readily.
Brushed (Satin Finish): Provides a soft, textured appearance with directional grain. It is more resistant to fingerprints and minor abrasions, making it suitable for architectural trim and frequently handled components.
Matte or Dull Finish: Minimizes glare and hides imperfections, often used in industrial or technical applications.
Mill Finish: The raw, as-rolled surface with minimal processing. May require additional finishing before use.
Additional Selection Tips
Temper (Hardness)
Nickel silver is available in various tempers (e.g., annealed, half-hard, full-hard). Softer tempers are easier to form, while harder tempers provide greater strength and springiness.
Corrosion Resistance
While nickel silver resists tarnish better than brass, it can still oxidize over time. Consider protective coatings or lacquers for outdoor or high-humidity environments.
Solderability and Weldability
Most nickel silver alloys can be soldered or silver-brazed effectively, though welding is less common due to zinc fuming.
Supplier Reliability
Choose suppliers who offer consistent quality, precise tolerances, and technical support to ensure long-term project success.
FAQ
We're well-known as one of the leading copper alloy strip manufacturers and suppliers in China. Please feel free to wholesale high quality copper alloy strip from our factory. For customized service, contact us now.
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