AK-ER80S-G MAG/CO₂ Welding Wire for High-Strength Steel Structures.
A general-purpose solid wire for all-position welding of 550 MPa grade high-strength steel, offering stable arc and low spatter at low current settings.
Product Overview
AK-ER80S-G is a solid welding wire designed for manual and automated MAG/CO₂ welding of high-strength steel structures with a minimum tensile strength of 550 MPa. It is suitable for all welding positions and maintains arc stability across a wide current range, reducing spatter and improving weld quality even at low current levels.
The wire is formulated to deliver consistent mechanical properties in the deposited metal, meeting the requirements of EN ISO 14341-A: W 46 4 C1/M21 Z, AWS A5.28 ER80S-G, and GB/T 8110 ER55-G classifications. It is supplied without copper plating, which supports clean welding and reduced contamination in the weld zone.
Application: It is a 550MPa grade high-strength steel welding wire, which is used for welding of high- strength steel structures of the same level.
Key Benefits
Stable Arc at Low Current.
The wire maintains a consistent arc at low welding currents, enabling clean starts and steady welding on thin sections without excessive spatter or arc instability.
Low Spatter and Clean Welds.
Reduced spatter during welding minimizes post-weld cleaning and improves weld appearance, especially in automated or high-speed applications.
All-Position Welding Capability
Suitable for flat, horizontal, vertical, and overhead welding positions, allowing one wire type to be used across multiple joint orientations.
High-Strength Weld Metal
Deposited metal achieves a minimum tensile strength of 550 MPa and yield stress of 450 MPa, matching the strength level of the base material in high-strength steel structures.
Where It Is Used
- Welding of high-strength steel structures with a minimum tensile strength of 550 MPa.
- Fabrication of pressure vessels, bridges, and heavy machinery where strength and reliability are critical.
- Automated and semi-automated MAG/CO₂ welding in industrial and structural applications.
Who It Is For
- Welding consumable distributors supplying solid wires for structural and industrial projects.
- Fabricators working with high-strength steel components requiring consistent weld performance.
- EPC contractors and maintenance teams handling structural repairs on high-strength steel systems.
Problems It Solves
- Inconsistent weld quality and excessive spatter when using wires that do not stabilize at low current settings.
- Mismatch between weld metal strength and base metal strength in high-strength steel joints.
- Need to switch between multiple wire types to cover different welding positions or material grades.
Specifications
Published by the factory for AK-ER80S-G (Not copper plated). Values not shown are not published on the datasheet and are marked as such rather than estimated.
| Standard | Designation |
|---|---|
| Classification | EN ISO 14341-A: W 46 4 C1/M21 Z AWS A5.28 ER80S-G GB/T 8110 ER55-G |
| Element | Content |
|---|---|
| C | 0.06-0.15 |
| Si | 0.80-1.10 |
| Mn | 1.40-1.85 |
| S | ≤0.035 |
| P | ≤0.025 |
| Ni | ≤0.50 |
| Property | Value |
|---|---|
| Tensile strength (MPa) | ≥550 |
| Yield Stress (MPa) | ≥450 |
| Elongation (%) | ≥22J |
| Impact values (J) | ≥27J/-40℃ |
Technical Features
- Solid wire without copper plating, suitable for MAG/CO₂ welding.
- Chemical composition: C 0.06-0.15%, Si 0.80-1.10%, Mn 1.40-1.85%, S ≤0.035%, P ≤0.025%, Ni ≤0.50%
- Deposited metal tensile strength ≥550 MPa, yield stress ≥450 MPa, elongation ≥22%
- Impact toughness ≥27 J at minus 40 degrees C.
- Complies with EN ISO 14341-A: W 46 4 C1/M21 Z, AWS A5.28 ER80S-G, and GB/T 8110 ER55-G classifications.
Use Guide
- Select wire diameter based on joint thickness and welding position; use lower current settings for thin sections to maintain arc stability.
- Ensure the wire is free from oil, rust, and moisture before welding to prevent porosity and cracking.
- Store the wire in sealed packaging to prevent moisture absorption; re-dry if exposed to humid conditions.
- Use proper shielding gas (CO₂ or MAG mix) as specified in the welding procedure to achieve the required weld quality.
How It Compares
For higher strength and better low-temperature toughness, AK-ER80S-G is the appropriate choice.
Related Grades
Other welding wire in the same family.
AK-ER80S-G (Not copper plated) Questions
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