Metal connectors play a pivotal role in various industries, comprising an array of components such as metallic shims, terminals, rivets, bolts, high-strength bolts, welding rods, and pivots. In this guide, we’ll delve into the diverse materials used for these connectors and their unique properties.

Copper: The Red Emissary of Connectivity

Unveiling the Pliability and Versatility

Copper, renowned for its distinctive red hue and premium cost, emerges as a versatile metal connector. Its inherent pliability makes it effortlessly malleable, endowing it with exceptional conductivity, heat conduction, corrosion resistance, and superb workability.

Brass: The Alloy Marvel

A Symphony of Copper and Zinc

Brass, an alloy marrying copper and zinc, with copper content ranging from 60% to 96%, stands out as a resilient material. Showcasing acceptable conductivity, excellent workability, and ease of welding, brass is not only cost-effective but also exhibits a distinctive yellow tint.

Tin-Phosphor Bronze: Balancing Resilience and Cost

The Red-Hued Contender

Tin-phosphor bronze, an alloy of copper and tin, strikes a balance between the resilience of brass and beryllium bronze. Despite inferior conductivity compared to brass, it showcases insensitivity to stress corrosion. Priced higher than brass, it manifests a red hue, making it a unique contender in the world of metal connectors.

Beryllium Bronze: Optimal Elegance and Strength

Surpassing Standards with a Yellow Hue

Beryllium bronze takes the spotlight with optimal elasticity, superior fatigue strength, corrosion resistance, and wear resistance. Surpassing brass in cost by a factor of five, it boasts a distinctive yellow hue, making it an elegant choice for high-performance applications.

Copper Alloys: Navigating the Spectrum

A Palette of Conductivity and Resistance

Copper alloys, exemplified by copper-nickel-zinc alloy (Cu 65%, Ni 12%, Zn 23%), closely approach the conductivity of brass. Featuring corrosion resistance and resistance to high voltage, these alloys present a silver-white appearance. Despite their limited applications, they play a crucial role in specific scenarios.

Steel: The Gray Guardian

Balancing Conductivity and Resilience

Operational up to temperatures of 250 degrees Celsius, steel brings forth metal connectors with poor conductivity yet excellent elasticity and wear resistance. Despite its grayish appearance, steel finds its place in applications requiring resilience under challenging conditions.

Gold: The Elegance in Electroplating

Pliability and Corrosion Resistance

Gold, often chosen for electroplating existing electrical contact components, boasts a pliable nature, exceptional corrosion resistance, and high conductivity. Despite its higher cost, selective gold plating processes, focusing on mating surfaces, prove economically rational.

Nickel: The Silver-White Foundation

Beneath the Gold Layers

Nickel, a comparatively costly silver-white metal with poor conductivity and a hardened surface, serves as the underlying layer in gold plating processes. While its welding characteristics are suboptimal, nickel plating on steel connectors (preceded by copper plating) remains prevalent.

In conclusion, understanding the nuances of metal connectors and their diverse materials is crucial for making informed choices in various industrial applications. Each material brings its unique set of properties, ensuring that the world of metal connectors remains as diverse as the industries it serves.

Metal Connectors
Metal Connectors