AK-ERCuAl-A2 TIG and MIG Wire for Aluminum Bronze Surfacing on Steel.
A copper-aluminum alloy wire designed for wear-resistant and seawater corrosion-resistant surfacing on steel, suitable for shipbuilding, machinery, and pump manufacturing applications.
Product Overview
AK-ERCuAl-A2 is a TIG and MIG welding wire classified to EN ISO 24373 CuAl10Fe1, AWS A5.7 ERCuAl-A2, and GB/T 9460 CuAl10Fe1 for surfacing aluminum bronze on steel substrates.
It is formulated for applications requiring resistance to wear and seawater corrosion, with a balanced composition that includes 8.5-11.0 percent aluminum and a maximum of 0.02 percent lead.
The wire is recommended for pulse argon arc welding in multilayer surfacing operations to ensure controlled heat input and consistent bead formation.
Application: It is suitable for surfacing welding of aluminum bronze on steel, wear resistant and seawater corrosion-resistant, and is used in shipbuilding, machinery manufacturing, instrument and pump manufacturing. Pulse argon arc welding is re commended for multilayer surfacing.
Key Benefits
Wear and Seawater Corrosion Resistance.
The high aluminum content and controlled alloying elements provide a surfacing layer that resists abrasive wear and degradation in seawater environments.
Controlled Heat Input with Pulse Welding.
Pulse argon arc welding is recommended for multilayer surfacing to minimize distortion and maintain the integrity of the deposited metal.
Low Lead and Impurity Content.
Lead is limited to a maximum of 0.02 percent, and total other elements are kept below 0.50 percent to ensure consistent metallurgical performance.
Suitable for Critical Industrial Applications.
The wire is used in shipbuilding, machinery, instrument, and pump manufacturing where surface durability and material compatibility are essential.
Where It Is Used
- Surfacing of aluminum bronze on steel components in marine environments.
- Wear-resistant overlays on pump parts and mechanical components.
- Reinforcement of steel surfaces exposed to seawater or abrasive conditions.
- Manufacturing and repair of instruments and machinery requiring corrosion-resistant surfaces.
Who It Is For
- Shipbuilding yards requiring corrosion-resistant surfacing materials.
- Machinery and pump manufacturers needing wear-resistant overlays.
- Maintenance teams performing surfacing repairs on critical components.
- Welding distributors supplying specialty alloy wires for industrial applications.
Problems It Solves
- Achieving a wear-resistant and seawater-corrosion-resistant surface on steel without compromising weld integrity.
- Sourcing a single wire that meets multiple international standards (EN ISO 24373, AWS A5.7, GB/T 9460) for surfacing applications.
- Reducing the risk of contamination from high lead or uncontrolled impurities in the weld deposit.
Specifications
Published by the factory for AK-ERCuAl-A2 (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 CuAl10Fe1 |
| Classification 2 | AWS A5.7 ERCuAl-A2 |
| Classification 3 | GB/T 9460 CuAl10Fe1 |
| Element | Content |
|---|---|
| Cu | bal |
| Al | 8.5-11.0 |
| P | —— |
| Mn | —— |
| Ni | —— |
| Pb | ≤0.02 |
| Si | 0.20 |
| Sn | —— |
| Zn | ≤0.20 |
| Other | ≤0.50 |
| Property | Value |
|---|---|
| Solids-Temperature | 1030℃ |
| Liquids-Temperature | 1040℃ |
| Density | 7.6kg/dm³ |
| Tensile Strength | 621N/mm² |
| Elongation | 20% |
| Brinell-Hardness | 166HB |
Technical Features
- Composed of copper with 8.5-11.0 percent aluminum, 0.20 percent silicon, and ≤0.02 percent lead.
- Maximum total of other elements at ≤0.50 percent.
- Solidus temperature at 1030℃ and liquidus temperature at 1040℃.
- Density of 7.6 kg/dm³.
- Tensile strength of 621 N/mm².
- Elongation of 20 percent.
- Brinell hardness of 166 HB.
- Supplied in standard TIG and MIG wire sizes as per application requirements.
Use Guide
- Use pulse argon arc welding for multilayer surfacing to control heat input and reduce distortion.
- Ensure the base steel surface is clean and free of oil, rust, and moisture before welding.
- Use appropriate shielding gas—pure argon or argon-rich mixtures—for consistent arc stability and weld quality.
- Follow recommended welding parameters for the specific wire diameter and joint configuration to achieve desired bead profile and mechanical properties.
How It Compares
AK-ERCuAl-A2 is a high-aluminum copper alloy wire suitable for surfacing applications requiring wear and seawater resistance. It differs from standard copper or brass wires in its higher aluminum content and controlled impurity levels. Unlike some other bronze alloys, it contains no nickel, manganese, or tin, which simplifies the composition and reduces the risk of unwanted phase formation. It is not intended for structural welding but for functional surfacing where surface performance is critical.
Related Grades
Other welding wire in the same family.
AK-ERCuAl-A2 (TIG / MIG) Questions
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