AG6228 Silver Copper Nickel Brazing Alloy AgCu28Ni0.75

Silver-Copper-Nickel-Solder AgCu28Ni0.75 Description

TheSilver-Copper-Nickel Solder AgCu28Ni0.75 is a specialised vacuum solder, composed of 72% Silver (Ag), 28% Copper (Cu), and 0.75% Nickel (Ni). It is primarily utilised for vacuum soldering applications, where high electrical and thermal conductivity, corrosion resistance, and reliable joint strength are required. The addition of Nickel improves wettability on various substrates and increases the mechanical strength of joints.

Silver-Copper-Nickel Solder AgCu28Ni0.75 Specifications

Product Properties

Chemical Composition in %

Specification

Silver-Copper-Nickel Alloy AgCu28Ni0.75 Applications

• Vacuum electronics and RF components

Suitable for sensitive components that must be soldered without flux to avoid contamination.

Used in waveguides, microwave devices, and vacuum tubes.

• Aerospace and satellites

Appropriate for highly reliable applications requiring mechanical stability and conductivity under extreme conditions.

• Medical devices

Utilised in medical components for electrical connections and sensors, where biocompatibility and reliability are necessary.

• Power modules and heat sinks

Utilised for thermal management by providing a low-resistance connection between metal parts and cooling elements.

• High-purity jewellery and decorative metal bonding

Occasionally used for high-quality jewellery or artistic designs, where a strong, conductive connection is essential.

Silver-Copper-Nickel Solder AgCu28Ni0.75 Packaging

Our Silver-Copper-Nickel Solder AgCu28Ni0.75 is carefully handled during storage and transport to maintain the quality of our product in its original condition.

FAQs

Q1: What are typical applications of AgCu28Ni0.75?

Components for aerospace requiring reliable electrical connections

Vacuum electronics and microwave devices

Medical devices with biocompatibility requirements

Power modules and heat sinks for thermal management

Sensors and optoelectronic devices under extreme conditions

Q2: Why is Nickel added to this solder alloy?

The addition of Nickel (0.75%) improves:

• wettability on difficult surfaces (e.g., nickel-plated metals)
• oxidation resistance
• mechanical strength and resistance to temperature fluctuations

Q3: What are the benefits of AgCu28Ni0.75 in vacuum environments?

Flux-free soldering ensures that sensitive components are not contaminated

Stable and reliable joints under harsh conditions

Minimal outgassing, which is essential for vacuum applications