Custom High conductivity C51100 phosphor copper Factories, Companies

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Custom High conductivity C51100 phosphor copper Factories, Companies

C51100 is a typical tin-phosphorus bronze with the international grade of CuSn4, and it is a high-performance elastic copper alloy. This material takes copper as the base and adds an appropriate amount of tin and phosphorus. The role of tin is mainly to enhance strength, wear resistance and corrosion resistance, while phosphorus is mainly to improve elasticity, fatigue resistance and also serves as a deoxidizer. It combines high strength, good elasticity, wear resistance and excellent corrosion resistance, and is widely used in the fields of electronics, electrical engineering and precision machinery.

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Product Description

1. Chemical Composition

Element	Content (%)
Cu	≥ 99.5（Rem）
Sn	3.5 – 4.9
P	0.03 – 0.35
Zn	≤ 0.30
Fe	≤ 0.10
Pb	≤ 0.05

2. Physical Properties

Item	Values
Density	Approximately 8.86 g/cm³
Electrical Conductivity	Approximately 20% IACS
Melting Point	Approximately 970 – 1060°C
Elastic Modulus	≈ 110 GPa

3. Material Characteristics

Excellent Elasticity

C51100 exhibits excellent elasticity recovery capability, making it suitable for manufacturing elastic components such as springs.

High Wear Resistance

Low friction coefficient and outstanding wear resistance, suitable for sliding parts.

Good Corrosion Resistance

Stable performance in air, fresh water, and seawater environments, with strong corrosion resistance.

Excellent Processing Properties

Excellent cold processing performance, good welding performance, and decent cutting performance.

4. Application Fields

The C51100 is widely used in industries that have high requirements for elasticity, wear resistance, and reliability. For example, in the electronics and electrical industry, it is widely applied to connector spring clips, relay contacts, switch components, etc.; in the precision machinery industry, it is widely used in springs, gears, bearings, etc.; in the industrial equipment industry, it is applied to instrument parts (also known as "instrument copper"), wear-resistant sliding components, etc.

Frequently Asked Questions

Q1: What is the main chemical composition of C51100?

A: C51100 mainly consists of Copper (as the remainder), with Tin (3.5% - 4.9%) and Phosphorus (0.03% - 0.35%) as key alloying elements.

Q2: Why is C51100 preferred for electrical connectors?

A: Its excellent elasticity recovery and decent electrical conductivity (20% IACS) make it ideal for spring clips, contacts, and switch components in the electronics industry.

Q3: How does C51100 perform in marine environments?

A: It demonstrates good corrosion resistance and stable performance in fresh water and seawater environments.

Q4: What are the physical properties like density and melting point?

A: It has a density of approximately 8.86 g/cm³ and a melting point range of about 970 – 1060°C.

Q5: Is C51100 easy to process?

A: Yes, it offers excellent cold processing performance and good welding properties, along with decent cutting performance.

Q6: What does "instrument copper" refer to in applications?

A: It refers to C51100's use in the industrial equipment industry for manufacturing high-precision instrument parts that require reliability and wear resistance.