C87400 Copper Thin Wire

Introduction

C87400 copper wire is a high-zinc silicon brass alloy known for its excellent castability and good fluidity, enabling the precision forming of complex-shaped components. This alloy exhibits low shrinkage during solidification, which helps reduce defects such as porosity and cracks, making it particularly suitable for processes like sand casting and centrifugal casting.

In addition to its favorable processing characteristics, C87400 copper wire offers relatively high electrical and thermal conductivity, along with outstanding corrosion resistance, especially in humid and mildly acidic environments. These properties, combined with its good mechanical strength, make it a reliable choice for applications in precision machinery, plumbing components, and various types of fasteners.

parameter

Physical Properties

Melting Point – Liquidus°F	1680
Melting Point – Solidus°F	1510
Densitylb/cu in. at 68°F	0.3
Specific Gravity	8.3
Electrical Conductivity% IACS at 68°F	6.7
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F	16
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F)	10.9
Specific Heat CapacityBtu/ lb /°F at 68°F	0.09
Modulus of Elasticity in Tensionksi	15400

Advantages

Advantages of C87400 Copper Thin Wire

Excellent castability

Its high fluidity and low shrinkage during solidification allow for the production of complex, near-net-shape components with fewer defects such as porosity or cracks.

Good electrical and thermal conductivity

It efficiently conducts electricity and heat, making it suitable for applications requiring thermal management or moderate electrical performance.

Superior corrosion resistance

It performs well in humid, mildly acidic, or ordinary atmospheric environments, extending the service life of components like plumbing fittings and outdoor hardware.

High mechanical strength with good machinability

It offers robust mechanical properties for structural integrity while remaining easy to machine or form into fasteners, precision parts, and other engineered components.

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Applications for C87400 Copper Thin Wire

Precision Machinery Components

C87400 copper wire is widely used to manufacture high-precision mechanical parts such as gears, cams, valve stems, bushings, and sliding bearings. Its excellent castability allows for complex near-net shapes, while its good mechanical strength and wear resistance ensure reliable performance under moderate loads and repeated motion.

Industrial and Architectural Fasteners

This alloy is an ideal material for producing various fasteners including nuts, bolts, screws, rivets, and washers. These fasteners benefit from C87400's combination of adequate tensile strength, excellent corrosion resistance (especially in moist or mildly acidic environments), and good machinability, making them suitable for both indoor and outdoor applications in construction, furniture, and general assembly.

Plumbing, Valve, and Sanitary Fittings

Due to its outstanding resistance to dezincification and general corrosion in water environments, C87400 copper wire is commonly used in plumbing systems. Typical products include pipe fittings, faucet cores, shower valve bodies, pump housings, and water meter components. The material also provides good pressure tightness and thermal conductivity, which are essential for hot and cold water handling.

Electrical and Thermal Management Devices

While not a high-conductivity alloy like pure copper, C87400 offers moderate electrical conductivity sufficient for low-to-medium current applications such as terminals, connector pins, grounding clips, and switch components. Additionally, its good thermal conductivity makes it suitable for heat exchanger parts, radiator fittings, and cooling system components where corrosion resistance and heat dissipation are both required.

Strength

Company Strength

Our Team

Gnee steel group is a professional one-stop supply chain company for steel products in China. The copper technology has reached the world average technology level and has been approved by dozens of project companies to be the star company in Asia.

Established in 2008 with a registered capital of 5 million RMB, Gnai has made remarkable progress and development in the steel market. At present, the company has a total investment of 30 million yuan, a plant area of more than 35,000 square meters and more than 200 employees. With a clear strategic framework, a complete governance structure, a solid management foundation, and strong financial and human resources, the company is becoming the most professional internationalized steel supply chain company in the Central Plains.

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