AK-ER100S-G 700MPa Low-Alloy Steel Welding Wire for Ar+CO₂ Mixed Gas Shielded Welding.
A high-strength, low-alloy steel welding wire designed for Ar+CO₂ mixed gas shielded welding with low spatter and excellent bead appearance, suitable for all-position welding of 700MPa grade steel structures.
Product Overview
AK-ER100S-G is a 700MPa grade low-alloy steel welding wire formulated for Ar+CO₂ mixed gas shielded welding. It delivers consistent performance across all welding positions with minimal spatter and a smooth, well-formed weld bead.
The wire is intended for use in high-strength steel structures, particularly in applications requiring high tensile and yield strength, such as coal mining machinery, bridges, construction equipment, and vehicle manufacturing. It meets the AWS A5.28 ER100S-G standard.
Application: It is used for the welding of 700MPa high-strength steel structures, and can be used in coal mining machinery, bridges, construction, vehicle manufacturing and other industries.
Key Benefits
Low Spatter in Ar+CO₂ Shielding.
The wire produces minimal spatter during Ar+CO₂ mixed gas shielded welding, reducing post-weld cleaning and improving process efficiency.
Excellent Bead Appearance
The weld seam formed with AK-ER100S-G has a smooth, uniform surface with good fusion, reducing the need for grinding or finishing.
All-Position Welding Capability
The wire supports flat, horizontal, vertical, and overhead welding positions, allowing a single consumable to be used across full joint configurations.
High Strength and Toughness.
The deposited metal achieves a tensile strength of at least 690 MPa and yield stress of at least 610 MPa, with impact energy of at least 47 J at minus 20 degrees C.
Where It Is Used
- Welding of 700MPa high-strength steel structures in coal mining machinery.
- Bridge and construction steelwork requiring high strength and toughness.
- Vehicle manufacturing with high-strength steel components.
- Heavy equipment and industrial machinery fabrication.
Who It Is For
- Welding consumable distributors supplying high-strength steel welding solutions.
- Fabricators working with 700MPa grade steels in structural and heavy equipment applications.
- Contractors and fabricators needing a single wire for all-position welding in demanding environments.
Problems It Solves
- Achieving consistent weld quality on 700MPa high-strength steel structures without excessive spatter or poor bead formation.
- Using a single welding wire across all positions without switching consumables or adjusting process parameters.
- Meeting mechanical property requirements for tensile strength, yield stress, and impact toughness in critical joints.
Specifications
Published by the factory for AK-ER100S-G. Values not shown are not published on the datasheet and are marked as such rather than estimated.
| Standard | Designation |
|---|---|
| Classification | AWS A5.28 ER100S-G |
| Element | Content |
|---|---|
| C | 0.12 |
| Mn | 1.4-1.9 |
| Si | 0.4-0.8 |
| P | 0.02 |
| S | 0.02 |
| Ti | 0.20 |
| Cu | 0.50 |
| Mo | 0.20-0.60 |
| Property | Value |
|---|---|
| Tensile strength (MPa) | ≥690 |
| Yield Stress (MPa) | ≥610 |
| Elongation (%) | ≥16J |
| Impact values (J) | ≥47J/-20℃ |
| Diameter | Current range |
|---|---|
| 0.8mm | ：50-180/A |
| 1.0mm | 70-230/A |
| 1.2mm | 80-350/A |
| 1.6mm | 120-500/A |
Technical Features
- Formulated for Ar+CO₂ mixed gas shielded welding with low spatter and good bead appearance.
- Deposited metal tensile strength at least 690 MPa and yield stress at least 610 MPa.
- Elongation at least 16 percent and impact energy at least 47 J at minus 20 degrees C.
- Chemical composition includes C: 0.12%, Mn: 1.4-1.9%, Si: 0.4-0.8%, P: 0.02%, S: 0.02%, Ti: 0.20%, Cu: 0.50%, Mo: 0.20-0.60%
- Supplied in 0.8 mm, 1.0 mm, 1.2 mm, and 1.6 mm diameters with recommended current ranges.
Use Guide
- Select wire diameter based on joint thickness and access, then set current within the recommended range: 0.8 mm (50-180 A), 1.0 mm (70-230 A), 1.2 mm (80-350 A), 1.6 mm (120-500 A).
- Ensure the base metal is clean and free of oil, rust, paint, and moisture before welding.
- Use a stable gas mixture of Ar and CO₂ as shielding gas, following the recommended ratio for the application.
- Maintain consistent travel speed and gun angle to achieve uniform bead profile and minimize spatter.
How It Compares
AK-ER100S-G and ER100S-G both meet the AWS A5.28 standard and are designed for high-strength steel welding. AK-ER100S-G is specifically formulated for Ar+CO₂ mixed gas shielded welding, offering lower spatter and better bead appearance compared to some alternatives. It is not intended for use with pure CO₂ or pure argon shielding gases. For applications requiring even higher toughness or specific hydrogen control, a different wire type may be required.
Related Grades
Other welding wire in the same family.
AK-ER100S-G Questions
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