(1) hag-2b contains 2% silver, which is equivalent to American standard AWS BCuP-6, national standard BCu91PAg and L209. hag-2b has good fluidity and filling capacity, and is widely used for brazing copper and copper alloy in air conditioning, refrigerator, electromechanical and other industries. The melting point is 645-790 degrees Celsius. HAG-5B contains 5% silver, which is equivalent to American standard AWS BCuP-3, national standard BCu88PAg and L205. it has certain plasticity and is suitable for welding copper and its alloy joints which cannot keep close cooperation. The melting point is 645-815 degrees Celsius. HAG-15B contains 15% silver, which is equivalent to American standard AWS BCuP-5, national standard BCu80AgP and
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L204. It has good joint plasticity and improved conductivity, and is especially suitable for uneven clearance occasions. Brazing of copper and its alloy joints bearing vibration load. The melting point is 645-800 degrees Celsius. Common silver brazing filler metal comparison table: HYAg-50B silver electrode (silver welding wire, silver welding plate), melting temperature: 690-775. It is used for welding materials under electronic, food and vibration loads. HYAg-47B silver electrode (silver welding wire, silver welding plate) melting temperature: 663-730. It has good comprehensive properties, excellent toughness and permeability, and good tensile strength. It is often used for brazing electromechanical, food and parts with high requirements for smooth surface. HYAg-45B silver electrode (silver welding wire, silver welding plate) melting temperature: 645-680. It has good technological performance and joint can bear vibration load, so it is the most widely used silver material HYAg-40B silver electrode (silver welding wire, silver welding plate) has a melting point of 600-630. It has excellent technology and is suitable for brazing hardened steel and small and thin parts. HYAg-35B silver electrode (silver welding wire, silver welding sheet) melting temperature: 607-702 is suitable for welding heat exchangers. HYAg-30B silver welding rod (silver welding wire, silver welding plate) has a melting point of 677-766, and its joint has good toughness, which can braze copper, copper alloy, steel and other materials. HYAg-25B silver welding rod (silver welding wire, silver welding plate) has a melting temperature of 700-800. It is a low-cost cadmium-free solder with good wettability and filling ability, but has a high melting point and can braze copper, copper alloy, steel and other materials. HYAg-20B silver electrode (silver welding wire, silver welding plate) has a moderate melting range of 620-760, good wettability and filling, can weld most materials such as copper, copper alloy and steel, and has low cost, economy and practicality