Silver-Based Brazing Alloy Without Cadmium
| Product Series | Product Number | Related Standard | Chemical Composition（%） | Melting Range (℃) | Working Temperature (℃) | Characteristics | Application | ||||
| Ag | Cu | Sn | Zn | Other | |||||||
| Low-Silver Component Brazing Alloy | BAg2CuZnSn | 1.5-2.5 | 54-56 | 1.5‑2.5 | rem. | 790-830 | 830-900 | Low-silver class brazing alloy requires to use with the appropriate flux and has no self-brazing properties. Its low silver content offers a significant cost advantage compared to high- silver class brazing alloys. It exhibits superior wetting and fluidity compared to brass/Cu-Ni brazing filler metals. It can be brazed with carbon steel, copper alloys, nickel alloys, and cemented carbide, and some grades can be brazed with stainless steel. It provides good joint strength and ductility. Its melting temperature is relatively high. It is not suitable for vacuum brazing. Total impurity content is ≤0.15. | Widely used in hardware tools, carbide cutting tools, refrigeration parts, electrical instruments, low- pressure valves and pipelines, carbon steel-copper dissimilar joints. Mass production cost reduction and replacement of high-silver brazing filler metal. Suitable for flame brazing and induction brazing. Can be made into wires, rods, rings, and sheets according to customer needs. Meeting EU RoHS standards and can be used for brazing products or workpieces with RoHS requirements. | ||
| BAg5CuZn | EN1044 Ag208 | 4.0-6.0 | 54-56 | rem. | 830-870 | 870-970 | |||||
| BAg5CuZnSn | 4.0-6.0 | 54-56 | 1.5‑2.5 | 38-42 | 830-870 | 870-970 | |||||
| BAg10CuZn | China HL301 | 9.0-11.0 | 52-54 | 35-39 | 815-850 | 850-950 | |||||
| High-Silver Component Brazing Alloy | BAg15CuZnSn | 14‑16 | 44-48 | 1.5‑2.5 | 750-780 | 800-870 | This series requires the use of flux and lacking self-brazing capability. It features a wide range of silver content, excellent wettability, fluidity, and gap-filling ability, resulting in superior ductility, strength, and impact resistance. Adding Sn significantly lowers the melting temperature and improves spreading fluidity. Adding In further lowers the melting point, making it suitable for low-temperature brazing. Adding Ni enhances wettability on stainless steel and cemented carbide, improving corrosion resistance and crack resistance. Adding Mn strengthens cemented carbide joints and inhibits crack formation. BAg72Cu is a silver-copper eutectic brazing filler metal with a fixed melting point of 779℃ and excellent fluidity. Suitable for flame brazing, induction brazing, and furnace brazing. Not suitable for vacuum brazing. Higher silver content results in a lower melting range and better fluidity and plasticity. | Widely used in brazing stainless steel, carbon steel,copper and copper alloys, nickel-based alloys, and cemented carbide cutting tools, refrigeration and air conditioning pipes, compressors, and valves, hydraulic and pneumatic components, electrical appliances, instruments, and sensors, medical devices, and hardware tools. Suitable for brazing dissimilar metals such as steel- copper, steel-stainless steel, and cemented carbide-steel. Primarily used for components subjected to vibration, impact, and moderate corrosion, covering mid-to-high-end precision mass production. We can manufacture wires, rods, rings, and sheets according to customer requirements. Meets EU RoHS standards and can be used for brazing products or workpieces with RoHS requirements. | |||
| BAg18CuZnSn | China HL309 | 17‑19 | 44‑48 | 1.5‑2.5 | rem. | 780-810 | 810-920 | ||||
| BAg20CuZn | En1044 Ag206 | 19‑21 | 42-47 | rem. | 690-795 | 800-900 | |||||
| BAg25CuZn | China HL302 | 24‑26 | 40‑42 | rem. | 700-800 | 800-890 | |||||
| BAg25CuZnSn | En1044 Ag108 | 24‑26 | 39-41 | 1.5‑2.5 | rem. | 700-800 | 800-890 | ||||
| BAg30CuZnSn | China HL302 EN1044 Ag107 | 29‑31 | 35-37 | 1.5‑2.5 | rem. | 650-750 | 740-840 | ||||
| BAg34CuZnSn | En1044 Ag106 | 33‑35 | 34‑38 | 2.5-3.5 | rem. | 630-730 | 730-840 | ||||
| BAg40CuZnSn | China HL322 | 39‑41 | 29-31 | 1.5‑2.5 | rem. | 634-640 | 640-740 | ||||
| BAg45CuZn | China HL303 EN1044-Ag203 AWS BAg-5 | 44‑46 | 29‑31 | rem. | 665-745 | 745-845 | |||||
| BAg45CuZnSn | EN1044-Ag104 | 44‑46 | 26-28 | 2.0-3.0 | rem. | 640-680 | 680-780 | ||||
| BAg56CuZnSn | China HL316 EN1044-Ag102 AWS BAg-7 | 55‑57 | 22‑24 | 4.5-5.5 | rem. | 620-650 | 650-760 | ||||
| BAg55CuZnSn | En1044-Ag103 | 54‑56 | 20-23 | 4.0-5.0 | rem. | 630-650 | 650-760 | ||||
| BAg73CuZn | 72‑74 | 15-17 | rem. | 635-680 | 680-780 | ||||||
