Welding Material — R4643/ER4643

Welding is one of the most important processes in modern manufacturing. Welding wire, as the core material in the welding process, directly affects the welding quality and efficiency.

4643 welding wire has become an ideal choice for solving welding problems with its excellent performance and wide application. It can effectively deal with problems such as cracks, insufficient strength and poor corrosion resistance, providing high strength, crack resistance and excellent corrosion resistance, comprehensively improving welding quality and Durability.

Specification of Chalco R4643/ER4643 welding wire

Our welding wires comply with industry standards such as ANSI/AWS A5.10 (ER&R 4643), ASME SFA5.10 ER/R 4643 and AMS 4189, ensuring excellent stability and consistency during the welding process, meeting complex welding requirements and ensuring joint strength and durability.

Chalco R4643/ER4643 welding wire chemical composition

Chalco R4643/ER4643 welding wire performance parameter table

Chalco R4643/ER4643 welding wire standard wire diameter

Chalco R4643/ER4643 welding wire performance advantages

• Compatibility: 4643 welding wire has good adaptability, especially for 6 series and 5 series aluminum alloys. Its matching with the parent material has been optimized to avoid common quality problems in the welding process and ensure the strength and stability of the welded joint.
• Welding performance: 4643 welding wire has excellent crack resistance and can effectively solve the common thermal cracking problem in the welding process. The joint strength after welding is excellent, meeting the needs of high-strength structures and ensuring stable and reliable welding quality. In addition, the weld appearance is smooth, which reduces the workload of subsequent processing and improves production efficiency.
• Corrosion resistance: The weld of 4643 welding wire has excellent corrosion resistance, and is particularly suitable for harsh environments such as ocean and chemical industries. Its excellent corrosion resistance can effectively extend the service life of the welded structure and reduce maintenance costs.

Chalco R4643/ER4643 welding wire application technical guide

4643 welding wire belongs to Al-Si series welding wire, with moderate silicon content, which can meet the welding requirements of various aluminum alloys. Its optimized melting point and fluidity ensure the stability and efficiency of the welding process, and it is particularly suitable for aluminum alloy materials that require high-quality welding.

• Preferred material for welding thick profiles: 4643 welding wire is mainly used for welding thick profiles of certain aluminum alloys, especially suitable for multi-pass welding scenarios, when the dilution of the parent material in the molten pool is negligible, its performance is particularly outstanding. It can meet complex welding requirements and ensure the strength and stability of the welded joint.
• Suitable for brazing thin sections: In thin section brazing applications with low dilution rates, 4643 welding wire also performs well, providing a reliable solution for scenarios requiring precision welding.
• Convenient processing and use: 4643 welding wire has stable wire feeding performance, which reduces the failure rate during welding and ensures the smooth progress of welding operations. At the same time, the post-welding processing workload is small, which reduces the subsequent processing costs of the production line.
• The effect of post-weld treatment is significant: through post-weld solution heat treatment and artificial aging, the tensile strength of the unwelded base metal of 6061, 6063, 6070 and 6071 alloy joints welded with 4643 welding wire can be restored to 90%. This property makes it ideal for welded joints requiring high strength.

Chalco welding wire application cooperation areas

Chalco welding wire is widely used in many industries to meet the high requirements of different industries for welding quality and welding effects. Our welding wires excel in:

• Welding Filler Wire
• Automotive
• Aerospace
• Nail Wire
• Defense
• Shipbuilding
• Recreation
• Transportation
• Containers

Chalco welding wire product buying guide

1. Selection of welding wire type

According to different welding processes, aluminum alloy welding wire can be divided into the following types:

• Solid welding wire: commonly used in gas shielded metal arc welding (GMAW) process, suitable for welding most aluminum alloys.
• Flux-cored wire: Contains flux inside, suitable for self-shielded metal arc welding (FCAW), and can complete welding without external gas protection.
• TIG welding wire: used for tungsten inert gas welding (TIG), suitable for high-precision welding, especially for thin aluminum alloy materials.

2. Matching guide for alloys and welding materials

The selection of aluminum alloy welding wire should match the alloy composition of the base material to ensure the strength and stability of the welded joint. Common aluminum alloy welding wires include:

• 4043 welding wire: suitable for aluminum-silicon alloys, commonly used for welding aluminum and aluminum alloys, has good crack resistance, and is commonly used in the automotive, aviation and other industries.
• 5356 welding wire: suitable for aluminum-magnesium alloys, with high strength and corrosion resistance, suitable for marine, chemical and other environments.
• 5183 welding wire: suitable for aluminum-magnesium alloys, especially suitable for high-strength welding, widely used in aviation, shipbuilding and other fields.
• 4047 welding wire: suitable for aluminum-silicon alloy, has good fluidity, and is suitable for thick plate welding of aluminum alloy.

Selecting the right welding wire alloy composition can ensure the quality of the weld and the performance of the joint.

3. Wire diameter

The diameter of the welding wire affects the heat input, welding speed and filler volume of the weld during welding. Common welding wire diameter options include:

• Fine welding wire (0.6mm - 1.2mm): suitable for welding thin aluminum alloy materials, providing finer welding control.
• Medium diameter welding wire (1.2mm - 2.4mm): suitable for welding aluminum alloys of general thickness, providing better welding performance.
• Thick welding wire (2.4mm and above): Suitable for thicker aluminum alloy materials, providing higher welding speed and greater welding strength.

Select the appropriate wire diameter according to the thickness of the aluminum alloy and welding requirements.

4. Welding performance requirements

The welding performance of aluminum alloy welding wire directly affects the welding quality. Common performance requirements include:

• Crack resistance: Aluminum alloys are prone to cracks when welded. Choosing welding wire with good crack resistance (such as 4043, 4643, etc.) can avoid this problem.
• Corrosion resistance: For marine, chemical and other environments, choosing welding wire with excellent corrosion resistance (such as 5356, 5183, etc.) can ensure the long-term stability of the welded joint.
• Fluidity: Some welding wires, such as 4047, have good fluidity and are suitable for welding thick aluminum alloy materials, which can ensure a smooth welding process.

Select appropriate welding wire properties according to specific welding environment and requirements.

5. Welding process matching

Different aluminum alloy welding wires are suitable for different welding processes. Common welding processes include:

• Gas metal arc welding (GMAW/MIG): Suitable for welding most aluminum alloys, usually using solid wire or flux-cored wire.
• Tungsten inert gas welding (TIG): Suitable for high-precision welding, TIG welding wire is commonly used.
• Submerged Arc Welding (SAW): Suitable for welding thick plates, usually using flux-cored wire.

When selecting welding wire, it is necessary to consider the requirements of the welding process to ensure the stability of the welding process and the quality of the joint.

6. Packaging and storage

Aluminum alloy welding wires are packaged in a variety of ways, and the appropriate packaging method is usually selected based on product specifications, usage, and transportation requirements. Common packaging forms include:

• Coiled welding wire: This packaging form is usually used for larger specifications of welding wire, which is convenient for long-term storage and large-scale use. Coiled welding wire is suitable for automatic welding equipment and can provide continuous welding operations.
• Small package welding wire: welding wire for smaller specifications or specific purposes, usually each package contains a certain length of welding wire, suitable for manual welding or small-scale operations. Small package welding wire is also suitable for trial welding and sample testing.
• Coiled welding wire: Commonly used in automated welding equipment, it can provide stable wire feeding performance. Coiled welding wire is easy to change quickly and operate efficiently, and is usually used in large-scale welding production.
• Small packages of welding rods: Welding wires are sometimes provided in small packages to facilitate handling and storage during manual welding.

When storing aluminum alloy welding wire, special attention should be paid to moisture-proof treatment. Aluminum alloy welding wire is very easy to absorb moisture, and a humid environment may cause oxidation on the surface of the welding wire, thus affecting the welding quality. To avoid this, the welding wire should be stored in a dry and ventilated place. Using moisture-proof packaging can effectively prevent moisture intrusion and ensure the performance and quality of the welding wire.

7. Brand and quality

Choosing a well-known brand of aluminum alloy welding wire is the key to ensure welding quality and efficiency. Reliable brands usually have a strict quality control system to ensure the consistency and stability of each batch of welding wire. Especially for industries with high-precision and high-strength welding requirements, choosing a brand with a good reputation and certification can greatly reduce the risk of welding defects and rework.

Advantages of Chalco brand:

• High quality standards: Our aluminum alloy welding wire undergoes a rigorous production process and quality testing to ensure that each wire meets international standards and the welding effect is stable and reliable.
• Stability and consistency: Whether it is mass production or special customization, our welding wire always maintains consistent high performance, ensuring that each welding wire performs excellently during the welding process.
• Professional technical support: We provide a full range of technical support and welding solutions to help customers solve various problems encountered during welding and improve welding efficiency and quality.
• Brand reputation: As a leading aluminum alloy welding wire manufacturer in the industry, our products have been widely used in aviation, automobile, shipbuilding, construction and other industries, and have won the high trust of customers.

Choosing our brand of aluminum alloy welding wire, you will enjoy high-quality products and professional service support to ensure that the welding work goes smoothly and obtains the best welding effect.