Product Overview

HS221 (RBCuZn-A) flux-cored brass welding wire is a tin-containing copper-zinc alloy welding wire designed for brazing of copper, steel and nickel alloys. Its unique flux core formula ensures excellent welding process performance and weld quality. The melting point is about 900℃, the deposited metal has good fluidity, and has good strength and corrosion resistance. This welding wire is suitable for a variety of welding methods such as flame brazing, furnace brazing, induction brazing, etc. It can also be used for metal arc welding and inert gas shielded welding of copper and copper-nickel alloys. It is an ideal choice for refrigeration, plumbing, electrical and other industries.

Product Features

1. Excellent welding process performance
• Good fluidity: The molten pool has excellent fluidity and can fully fill the joint gap to form a beautiful weld
• Self-protection function: The flux core component can provide effective protection and reduce the generation of pores
• Low melting point characteristics: The melting point of about 900℃ facilitates brazing operations and reduces the thermal impact on the parent material
• Good wettability: It has good wettability to various substrates such as copper, steel, and nickel, and the welded joint has high strength
2. High-quality weld performance
• Higher joint strength: The weld metal has good mechanical properties, and the tensile strength is ≥290MPa
• Good corrosion resistance: The copper-zinc alloy component provides a certain degree of corrosion resistance and is suitable for a variety of environments
• Color matching: The weld color is similar to the brass parent material, and the appearance is good
• Excellent processing performance: After welding, it can be cut, polished and other mechanical processing
3. Wide applicability
• Applicable to brazing of copper and copper alloys, low carbon steel, stainless steel, nickel alloys and other materials
• Can be used for flame brazing, induction brazing, furnace brazing and other welding processes
• Suitable for refrigeration equipment, plumbing pipes, electrical accessories, automotive parts and other application scenarios

Technical Parameters

Chemical composition (%)

Mechanical properties

Specifications

Application scenarios

Refrigeration equipment manufacturing
Used for connecting copper pipes and steel pipes in refrigeration equipment such as air conditioners and refrigerators. The welding joints have good sealing and corrosion resistance.

Plumbing Pipeline System
Suitable for the connection of brass pipes and valves. The welding strength is high and meets the sanitation requirements of drinking water.

Electrical equipment manufacturing
Used for the connection of copper conductors in electrical equipment such as motors and transformers. It has good conductivity and high mechanical strength.

Automotive parts
Suitable for the welding of brass parts such as automobile radiators and oil systems. It is vibration-resistant and highly reliable.