AK-EL8 Carbon Steel Submerged Arc Welding Wire for Boiler and Pipeline Applications.
A carbon-shaped wire for submerged arc welding of carbon steel, boiler steel, and pipeline steel, delivering stable arc, easy slag removal, and a well-formed weld bead.
Product Overview
AK-EL8 is a submerged arc welding wire designed for carbon steel, boiler steel, and pipeline steel applications. It is formulated with high manganese and high silicon content to match the welding performance of fluxes such as HJ431, SJ301, and SJ501.
The wire delivers a stable arc during welding, consistent slag detachment, and a smooth, attractive weld bead profile. It is supplied in accordance with EN ISO 14171-A S1, AWS A5.17 EL8, and GB/T 5293 H08A standards.
Application: Combined with the melting welding HJ431 or sintering welding SJ301 /SJ501, etc., it can be used for welding carbon steel (such as Q195, Q235, etc.), bo iler steel, pipeline steel, etc.
Key Benefits
Stable Arc and Easy Slag Removal.
The high manganese and high silicon composition ensures a stable arc and consistent slag formation that lifts off easily, reducing inter-pass cleaning time.
Well-Formed Weld Bead
The wire produces a smooth, uniform weld bead with minimal spatter, improving joint appearance and reducing post-weld finishing.
Compatibility with Common Fluxes.
AK-EL8 is recommended for use with melting flux HJ431 and sintered fluxes SJ301 and SJ501, providing consistent performance across standard submerged arc welding processes.
Suitable for Key Structural Steels.
It is suitable for welding carbon steels such as Q195 and Q235, as well as boiler and pipeline steels, meeting the mechanical requirements of structural applications.
Where It Is Used
- Welding of carbon steel structures and pressure vessels.
- Boiler and pipeline construction and repair.
- Submerged arc welding of Q195 and Q235 steel.
- Joining of boiler steel and pipeline steel in industrial fabrication.
Who It Is For
- Welding consumable distributors supplying submerged arc welding materials.
- Boiler and pressure vessel fabricators requiring consistent filler metal.
- Pipeline and oil & gas contractors using submerged arc welding for long seams.
- Steel structure fabricators working with carbon and low-alloy steels.
Problems It Solves
- Inconsistent weld bead appearance and difficult slag removal in submerged arc welding due to poor wire-flux compatibility.
- Mismatched mechanical properties in weld metal when using non-standard or poorly specified filler metal.
- Need for multiple wire types when welding different carbon steel grades, to inventory complexity.
Specifications
Published by the factory for AK-EL8. Values not shown are not published on the datasheet and are marked as such rather than estimated.
| Standard | Designation |
|---|---|
| Classification 1 | EN ISO 14171-A S1 |
| Classification 2 | AWS A5.17 EL8 |
| Classification 3 | GB/T 5293 H08A |
| Element | Content |
|---|---|
| C | 0.10 |
| Si | 0.03 |
| Mn | 0.30-0.60 |
| S | ≤0.03 |
| P | ≤0.025 |
| Ni | 0.30 |
| Cr | 0.20 |
| Mo | 0.20 |
| Cu | 0.20 |
| Property | Value |
|---|---|
| Tensile strength (MPa) | 415-530 |
| Yield Stress (MPa) | ≥330 |
| Elongation (%) | ≥22J |
| Impact values (J) | ≥27J/-40℃ |
Technical Features
- Carbon-shaped wire for submerged arc welding with high manganese and high silicon content.
- Complies with EN ISO 14171-A S1, AWS A5.17 EL8, and GB/T 5293 H08A standards.
- Chemical composition: C 0.10%, Si 0.03%, Mn 0.30–0.60%, S ≤0.03%, P ≤0.025%, Ni 0.30%, Cr 0.20%, Mo 0.20%, Cu 0.20%
- Deposited metal tensile strength 415–530 MPa, yield stress ≥330 MPa, elongation ≥22%
- Impact toughness ≥27 J at minus 40 degrees C.
Use Guide
- Select AK-EL8 wire in combination with HJ431, SJ301, or SJ501 fluxes for optimal performance on carbon steel, boiler steel, and pipeline steel.
- Ensure the joint surfaces are clean and free of oil, rust, and moisture before welding.
- Use proper shielding gas or flux coverage to maintain arc stability and prevent contamination.
- Follow recommended welding parameters for the specific flux and joint configuration to achieve the specified mechanical properties.
How It Compares
AK-EL8 is a carbon steel submerged arc welding wire designed for use with HJ431, SJ301, and SJ501 fluxes. It differs from basic fluxes in that it provides a smoother bead and easier slag removal, though it may not achieve the same low hydrogen levels. It is not intended for high-strength or low-temperature applications beyond its specified impact toughness. For higher strength or alloyed steels, a different wire composition would be required.
Related Articles
Technical background on this grade from the AKWELD knowledge centre.
Related Grades
Other welding wire in the same family.
AK-EL8 Questions
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