China China Suppliers Factory 5% 10% 15% Silver Brazing Alloy for Copper & Stainless Steel Ultimate Fix Supplier, Manufacturer

China's leading suppliers of silver brazing alloy offer premium brazing filler materials consisting primarily of silver (Ag). Our high-quality alloys are expertly crafted by melting silver, copper (Cu), zinc (Zn), tin (Sn), and other metals in precise proportions, ensuring excellent performance. This silver brazing alloy effectively wets the base material's surface through capillary action, creating a robust and airtight permanent metal joint. It is ideal for welding applications involving stainless steel, copper alloys, nickel-based alloys, and other dissimilar metals. Trust our factory for reliable and durable silver brazing solutions that meet your needs.

Product Description

Material

  • Ag
  • Cu
  • P
  • Zn
  • Sn

Advantages

1 Excellent wettability and strength

The welding liquid can flow into the depth of the small brazing gap, so that the welded joint has higher strength and toughness, and the strength of the brazed joint can reach more than 90% of the base material.

2 Low melting point

Working temperature 600°C~900°C, reducing the risk of thermal deformation and brazing time.

3 Good ductility and conductivity

The face-centered cubic (FCC) crystal structure of silver (Ag) enables it to undergo plastic deformation without cracking during welding, and silver is the metal with the best known conductivity (IACS 105%). Silver brazing alloys ensure conductivity through high silver content + low impurity control (oxygen content <0.01%).

Appliance

Particularly suitable for replacing split air-conditioning copper pipes, household refrigerators, commercial refrigeration units, filters in refrigeration system accessories, water compressors, etc., to ensure a firm and reliable connection.

Silver Brazing Alloy (1)

Product Parameters

Code Chemical Composition Melting Temperature (°C) Application
Ag% Cu% P% Sn Zn
2% 1.8-2.2 REM 6.8-7.2 / / 643-788 Used for brazing copper and copper alloys in refrigerators, air conditioners and other refrigeration industries, as well as motor and instrument industries.
5% 4.8-5.2 REM 5.8-6.2 / / 645-815 It has good fluidity and filling capacity and is widely used in air conditioners, refrigerators, electromechanical and other industries, brazing of copper and copper alloys.
10% 52-54 REM 9.0-11.0 / / 815-850 It has a certain plasticity and is suitable for welding copper and alloy joints that cannot maintain a tight fit.
15% 14.5-15.5 REM 4.8-5.2 / / 645-800 The joint has good plasticity and high electrical conductivity, and is suitable for brazing copper, copper alloys, tungsten, molybdenum and other metals.
25% 24-26 39-41 / 1.5-2.5 31-35 680-760 Used for brazing copper and copper alloys, copper and stainless steel, etc.
35% 34-36 25-27 / / 19-23 605-700

Product Size

Silver Brazing Rods Size
Flat 1.3x3.2x457mm
1.3x3.2x500mm
Round 1.5x500mm
2.0x500mm
3.0x500mm
Note: All sizes are standard, other sizes can be produced according to customer requirements.

Photos

Certificates

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Frequently Asked Questions

What elements are included in your silver brazing alloys?
Our silver brazing alloys are composed of Silver (Ag), Copper (Cu), Phosphorus (P), Zinc (Zn), and Tin (Sn), combined in various ratios to meet different industrial requirements.
What are the main advantages of using these brazing alloys?
They offer excellent wettability and joint strength (reaching over 90% of the base material), a low melting point (600°C to 900°C) to prevent thermal deformation, and outstanding ductility and electrical conductivity.
What applications are these brazing alloys suitable for?
They are highly suitable for replacing split air-conditioning copper pipes, household refrigerators, commercial refrigeration units, refrigeration system accessory filters, water compressors, and related electromechanical systems.
What sizes are available for the silver brazing rods?
We offer Flat sizes (1.3x3.2x457mm and 1.3x3.2x500mm) and Round sizes (1.5x500mm, 2.0x500mm, and 3.0x500mm) as standard sizes. Custom sizes are also available upon request.
How does silver content affect the melting temperature?
Depending on the formula, alloys with a silver content range from 2% to 35% have melting temperatures ranging from 605°C to 850°C. Higher silver content generally improves joint ductility and electrical conductivity.
Can you customize sizes according to specific requirements?
Yes. While we have standard sizes, we can manufacture custom sizes and specifications according to our customers' specific application requirements.

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