AK-ERCuZn-C TIG and MIG Wire for Brazing Copper, Steel, and Cast Iron.
A copper-zinc alloy wire designed for brazing applications where good fluidity and wetting are required on copper, steel, copper-nickel alloys, gray cast iron, and carbide tools.
Product Overview
AK-ERCuZn-C (TIG / MIG) is a brazing wire formulated for use in TIG and MIG welding processes. It meets the EN ISO 24373 CuZn40Fe1Sn1 and AWS A5.7 ERCuZn-C GB/T 9460 CuZn40Fe1Sn1 standards, providing a consistent composition suitable for joining dissimilar metals.
The wire is intended for brazing applications involving copper, steel, copper-nickel alloys, gray cast iron, and inlaid carbide tools. It is also used in oxygen-acetylene gas welding and carbon arc welding as a filler material.
Application: Brass oxygen-acetylene gas welding and carbon arc welding are used as filler materials. Widely used in brazing copper, steel, copper-nickel alloy, gray cast iron and inlaid carbide tools, etc.
Key Benefits
Good Fluidity and Wetting.
The alloy composition provides excellent fluidity and wetting characteristics, which help the filler metal flow into joint gaps and bond well to base metals without requiring excessive heat input.
Suitable for Dissimilar Metal Joining.
AK-ERCuZn-C is effective in joining copper to steel, copper to copper-nickel alloys, and copper to gray cast iron, where thermal expansion differences and metallurgical compatibility are critical.
Controlled Impurity Levels
The chemical composition limits iron, lead, and other impurities to specified ranges, reducing the risk of embrittlement and ensuring consistent joint performance.
Standardized Composition
The wire is produced to meet EN ISO 24373 and AWS A5.7 classifications, ensuring traceable and repeatable results across applications.
Where It Is Used
- Brazing of copper and copper alloys to steel.
- Joining copper-nickel alloys in marine and industrial components.
- Repair and joining of gray cast iron parts.
- Brazing inlaid carbide tools in cutting and machining applications.
- Oxygen-acetylene and carbon arc welding of brass and similar alloys.
Who It Is For
- Welding consumable distributors supplying brazing materials for industrial and maintenance use.
- Fabricators working with copper, steel, and cast iron in HVAC, marine, and machinery applications.
- Maintenance teams repairing carbide tools and cast iron components.
Problems It Solves
- Inconsistent joint quality when brazing copper to steel due to poor wetting or mismatched filler metal chemistry.
- Difficulty in joining dissimilar metals like cast iron and copper without cracking or poor fusion.
- Lack of standardized, certified brazing wire that meets international specifications.
Specifications
Published by the factory for AK-ERCuZn-C (TIG / MIG). Values not shown are not published on the datasheet and are marked as such rather than estimated.
| Standard | Designation |
|---|---|
| Classification 1 | EN ISO 24373 CuZn40Fe1Sn1 |
| Classification 2 | AWS A5.7 ERCuZn-C GB/T 9460 CuZn40Fe1Sn1 |
| Element | Content |
|---|---|
| ISO24373 Cu | 56.0-60.0 |
| AI | ≤0.01 |
| Mn | 0.01-0.50 |
| Fe | 0.25-1.20 |
| Pb | ≤0.05 |
| Sn | 0.80-1.1 |
| Si | 0.04-0.15 |
| Zn | BaI |
| Other | ≤0.50 |
| Property | Value |
|---|---|
| Solids-Temperature | 866℃ |
| Liquids-Temperature | 888℃ |
| Density | 8.38kg/dm³ |
| Tensile Strength | —— |
| Elongation | —— |
| Brinell-Hardness | —— |
Technical Features
- Complies with EN ISO 24373 CuZn40Fe1Sn1 and AWS A5.7 ERCuZn-C GB/T 9460 CuZn40Fe1Sn1 standards.
- Zinc content balanced at approximately 40 percent, with iron at 0.25-1.20 percent and tin at 0.80-1.1 percent.
- Lead content limited to ≤0.05 percent, aluminum to ≤0.01 percent, and silicon to 0.04-0.15 percent.
- Solidus temperature at 866℃ and liquidus temperature at 888℃, indicating a narrow melting range suitable for controlled brazing.
- Density of 8.38 kg/dm³, which influences feed and deposition behavior in automated processes.
Use Guide
- Select wire diameter based on joint clearance and heat input requirements; common sizes are available in standard packaging.
- Clean joint surfaces thoroughly to remove oil, oxides, and contaminants before welding to ensure proper wetting and bonding.
- Use appropriate shielding gas—argon or argon-helium mixtures—for TIG and MIG processes to prevent oxidation and ensure clean welds.
- Maintain proper torch angle and travel speed to avoid overheating and ensure uniform filler metal distribution.
How It Compares
AK-ERCuZn-C is a medium-temperature brazing wire suitable for copper, steel, and cast iron. Compared to pure copper filler wires, AK-ERCuZn-C offers better fluidity and lower melting point, reducing distortion risk on thin sections.
Related Grades
Other welding wire in the same family.
AK-ERCuZn-C (TIG / MIG) Questions
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