Isis Metals, located in Manila, Philippines, has built a solid reputation as a reliable manufacturer and supplier of top-notch Silver Brazing Rods, tailored to meet the rigorous demands of both industrial and commercial uses. With years of expertise in the metals sector, Isis Metals guarantees that each rod they produce delivers outstanding consistency, dependability, and exceptional bonding performance. Their Silver Brazing Rods are designed to create precise joints with minimal distortion, making them perfect for various types and thicknesses of metals. With a strong commitment to innovation and quality, Isis Metals provides products that boost efficiency, durability, and safety across a wide range of industries, including HVAC, plumbing, automotive, and aerospace.
The Silver Brazing Rods from Isis Metals are primarily made from silver alloys mixed with copper, zinc, and occasionally nickel, which optimizes both flow and joint strength. These rods have relatively low melting points compared to base metals, allowing for accurate joining without compromising the integrity of the components. Mechanically, they form strong, corrosion-resistant bonds and boast excellent thermal and electrical conductivity. Their ductility allows them to adapt to thermal expansion and vibrations, while the hardness can vary based on the alloy composition, making them suitable for joining metals like steel, stainless steel, copper, brass, and bronze.
Silver Grade of Brazing Alloy | Nominal Composition % | Melting Range | International Standards | |||||
Ag | Cu | Zn | Cd | Others | °C |  DIN:8513 | AWS:A5.8 | |
| SILVER 67Cd | 67 | 11 | 12 | 10 | – | 635-720 | L-Ag67Cd | – |
| Used for brazing of silver goods made of silver alloys. | ||||||||
| SILVER 50Cd | 50 | 15.5 | 16.5 | 18 | – | 620-640 | L-Ag50Cd | BAg-1a |
| One of the lowest melting point Silver Brazing alloys available. It has excellent flow characteristics. The highest joint strength can be obtained with this alloy. Has better resistance to corrosion in chlorine, sulphur and steam environments. | ||||||||
| SILVER 45Cd | 45 | 15 | 16 | 24 | – | 605-620 | L-Ag45Cd | BAg-1 |
| This has the lowest brazing temperature range of the BAg filler metals. It also flows more freely into narrow clearance capillary joints. Its narrow melting range is suitable for rapid or slow methods of heating. | ||||||||
| SILVER 44Cd | 44 | 27 | 13 | 15 | 1P | 595-660 | – | – |
| Low melting filler metal for brazing electrical contacts and molybdenum or copper-tungsten electrodes. | ||||||||
| SILVER 43Cd | 43 | 16 | 20 | 21 | – | 615-620 | – | – |
| This has the shortest melting range of any silver brazing alloys. This alloy is regarded as the best brazing alloy by manu brazers. It is particularly recommended where a minimum brazing temperature is desirable to preserve the properties of the parent metals. Ideal where joints have a close fitup and will produce neat joints with optimum ductility and strength. | ||||||||
| SILVER 40Cd | 40 | 19 | 21 | 20 | – | 595-630 | L-Ag40Cd | – |
| SILVER 35Cd | 35 | 26 | 21 | 18 | – | 610-700 | L-Ag34Cd | BAg-2 |
| A free flowing general purpose brazing alloy. Its broader melting range is helpful where clearances are wide or are not uniform. Unless heating is rapid, care must be taken that the lower melting constituents do not separate out by liquation. | ||||||||
| SILVER 30Cd | 30 | 28 | 21 | 21 | – | 600-690 | L-Ag30Cd | BAg-2 |
| Similar to Silver 40Cd but more economical. | ||||||||
| SILVER 251Cd | 25 | 30 | 27.5 | 17.5 | – | 605-680 | – | BAg-33 |
| Silver 251, 250 & 20Cd have good fillet forming properties with an ability to bridge wide gaps. Their wide melting range limit their applications. Due to their wide melting range they are somewhat more subject to liquation and may require more care during brazing. Therefore, they are not normally recommended for applications with slow heating rates. | ||||||||
| SILVER 250Cd | 25 | 35 | 26 | 14 | – | 605-745 | – | BAg-27 |
| SILVER 20Cd | 20 | 40 | 25 | 15 | – | 605-765 | L-Ag20Cd | – |
| SILVER 12Cd | 12 | 50 | 31 | 7 | – | 620-825 | L-Ag12Cd | – |
| Economical alloy with wide melting range. Like above, preferred for applications having short heating cycles to avoid liquation. Ideal for bridging wider gaps where work pieces are insensitive to heat. | ||||||||
| SILVER 5Cd | 5 | – | – | 7 | – | 335-392 | – | – |
| Used where alloy having higher melting point and better strength than soft solder is required. | ||||||||
| C | Si | Mn | P | S | Cr |
| 95/1.25 | .40 max. | .37 | .045 max | .045 max. | .35 / .45 |
Silver brazing rods generally do not require corrosion protection coatings for most applications. However, in highly corrosive environments, additional coatings or protective measures may be beneficial to prevent degradation.
Silver brazing rods are not designed for welding, as they are intended for brazing. Attempting to weld them can result in poor joint strength and structural integrity.
When installing silver brazing rods, ensure the joint surfaces are clean and properly prepared for effective bonding. Also, control the heating process to avoid overheating or damaging the material.
Silver Brazing Rods are extensively used in industries that require strong, reliable, and precise metal joining. In HVAC systems, they create leak-proof connections for copper tubing and fittings. The automotive industry depends on them for assembling radiators, fuel lines, and exhaust systems. In aerospace, these rods are essential for creating high-strength, lightweight metal joints that can endure extreme conditions. They also find applications in plumbing, jewelry making, and electrical components due to their excellent conductivity and resistance to corrosion. Isis Metals’ rods are perfect for joining dissimilar metals, repairing tools, and crafting durable assemblies in manufacturing and fabrication.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Isis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Manila, Philippines
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