AK-E71T-GS Flux-Cored Wire for All-Position Carbon Steel Welding.
An all-position flux-cored wire with stable arc, low spatter, and easy slag removal, suitable for single-pass welding including vertical down techniques on carbon steel sheet structures.
Product Overview
AK-E71T-GS is a self-shielded flux-cored wire designed for manual metal arc welding of carbon steel sheet structures. It is suitable for all welding positions, including vertical down welding, and supports single-pass welding without the need for external shielding gas.
The wire delivers good welding performance with low spatter, stable arc characteristics, minimal fume generation, and easy slag removal. The resulting weld bead has a smooth appearance, reducing the need for post-weld finishing.
Application: Used to weld carbon steel sheet structures.
Key Benefits
Stable Arc and Low Spatter.
The flux-cored formulation ensures a stable arc across the recommended voltage and current ranges, minimizing spatter and improving weld consistency.
Easy Slag Removal
The slag formed during welding lifts off easily after cooling, reducing the time required for inter-pass cleaning and minimizing the risk of slag entrapment.
Excellent Bead Appearance
The wire produces a smooth, well-shaped weld bead with consistent profile, which is beneficial for both structural integrity and visual inspection.
All-Position Capability Including Vertical Down.
AK-E71T-GS is suitable for flat, horizontal, vertical, and overhead welding, including vertical down techniques, allowing one wire to cover multiple joint orientations.
Where It Is Used
- Carbon steel sheet structures in fabrication and assembly.
- Single-pass welding applications where high deposition rate and reduced passes are required.
- Vertical down welding in structural steel and maintenance work.
- General welding in environments where shielding gas is not practical.
Who It Is For
- Welding consumable distributors stocking flux-cored wires for structural applications.
- Steel fabricators working with carbon steel sheets and requiring all-position capability.
- Maintenance teams performing field welding on carbon steel structures without gas supply.
Problems It Solves
- Inconsistent weld quality and high spatter when using flux-cored wires with unstable arc characteristics.
- Difficult slag removal and inter-pass cleaning due to stubborn or adherent slag.
- Need for multiple wire types to cover different welding positions, increasing inventory and complexity.
Specifications
Published by the factory for AK-E71T-GS. Values not shown are not published on the datasheet and are marked as such rather than estimated.
| Standard | Designation |
|---|---|
| Classification | EN ISO 17632-A: T3T Z V NO AWS A5.20 E71T-GS GB/T 10045 E501T-GS |
| Element | Content |
|---|---|
| C | ≤0.18 |
| Si | ≤0.90 |
| Mn | ≤1.75 |
| S | ≤0.03 |
| P | ≤0.03 |
| Property | Value |
|---|---|
| Tensile strength | ≥480 |
| Diameter | Current range |
|---|---|
| 0.8mm | ：15-20/V 80-150/A |
| 0.9mm | 15-20/V 80-150/A |
| 1.0mm | 15-20/V 80-150/A |
Technical Features
- Self-shielded flux-cored wire for all-position welding, including vertical down.
- Deposited metal tensile strength of at least 480 MPa.
- Chemical composition: C ≤0.18%, Si ≤0.90%, Mn ≤1.75%, S ≤0.03%, P ≤0.03%
- Recommended voltage: 15–20 V, current: 80–150 A for 0.8 mm, 0.9 mm, and 1.0 mm diameters.
- Supplied to EN ISO 17632-A: T3T Z V NO, AWS A5.20 E71T-GS, and GB/T 10045 E501T-GS classifications.
Use Guide
- Select wire diameter based on joint thickness and access: 0.8 mm, 0.9 mm, or 1.0 mm are available.
- Set voltage between 15 V and 20 V and current between 80 A and 150 A for all diameters.
- Ensure the wire is stored in a dry environment and not exposed to moisture before use.
- Clean the joint surface from rust, oil, paint, and moisture prior to welding to ensure sound welds.
How It Compares
AK-E71T-GS and AWS A5.20 E71T-GS are equivalent classifications for self-shielded flux-cored wires used on carbon steel. AK-E71T-GS offers similar performance to other E71T-GS wires in terms of arc stability, slag removal, and bead appearance. Unlike gas-shielded wires, it does not require external shielding gas, making it suitable for field and remote applications. It is not intended for use on low-alloy or high-strength steels unless specifically qualified.
Related Articles
Technical background on this grade from the AKWELD knowledge centre.
Related Grades
Other welding wire in the same family.
AK-E71T-GS Questions
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