Phehlukwayo Metal, a reputable manufacturer and supplier located in Cape Town, South Africa, specializes in top-notch **Silver Brazing Rods** that are perfect for securely joining metals with outstanding strength, resistance to corrosion, and precision. Crafted with cutting-edge techniques, these rods ensure a consistent composition, excellent flow properties, and a smooth finish, which together guarantee robust and leak-proof joints. With their impressive thermal conductivity and superb wettability, Silver Brazing Rods are the go-to choice for various applications in HVAC, plumbing, automotive, and aerospace sectors. Phehlukwayo Metal is dedicated to providing brazing solutions that adhere to international standards, delivering durable, high-performance, and trustworthy products for a broad spectrum of industrial and engineering needs.
These Silver Brazing Rods mainly consist of silver, copper, and trace amounts of zinc, nickel, or tin, depending on the specific grade. This unique blend offers remarkable strength, corrosion resistance, and high-temperature performance while ensuring good flow and wetting characteristics. The rods typically melt within a range of 600–800°C, making them ideal for efficient brazing processes. Their uniform composition guarantees strong metallurgical bonding, reliable mechanical properties, and minimal distortion during the joining process. Silver Brazing Rods are perfect for applications that demand precise, high-strength, and leak-proof joints across various metals, including copper, brass, stainless steel, and other alloys.
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.
These rods are extensively utilized in scenarios that require strong, precise, and corrosion-resistant joints. You’ll often find them in HVAC systems, plumbing, refrigeration, and automotive components. They’re also excellent for joining stainless steel, brass, copper, and other alloys in aerospace, marine, and industrial equipment. Furthermore, Silver Brazing Rods are commonly used in heat exchangers, piping systems, and decorative metalwork where creating leak-proof, high-strength joints is essential. Their blend of strength and corrosion resistance makes them a reliable choice for a wide range of applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Phehlukwayo Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Cape Town, South Africa
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