AK-ER49-1 CO2 Shielded Welding Wire for Low Carbon and Low Alloy Steel.
A solid wire with copper-plated surface and H08Mn2SiA core for high-current welding with low spatter and good porosity resistance, suitable for all positions using short-circuit transfer.
Product Overview
AK-ER49-1 is a CO2 gas shielded welding wire with a H08Mn2SiA core and copper-plated surface, designed for use with automatic and semi-automatic welding equipment. It is formulated for high-current operation with reduced spatter and improved resistance to porosity in the weld metal.
The wire supports all-position welding when used with short-circuit transfer, making it suitable for thin plate and complex joint geometries where access is limited. It is intended for low carbon steel and certain low alloy steel structures, including those with moderate rust or oxidation.
Application: Suitable for welding low carbon steel and some low alloy steel structures. It can be used to weld thin plates that require a smooth bead and steels with less severe rust and oxidation.
Key Benefits
Low Spatter at High Current.
The wire’s composition and surface coating reduce spatter during high-current welding, minimizing post-weld cleaning and improving process efficiency.
Good Anti-Porosity Performance
The chemical balance of silicon and manganese helps stabilize the weld pool and reduce gas entrapment, resulting in sound welds even with less-than-ideal joint preparation.
All-Position Capability with Short-Circuit Transfer.
When operated with short-circuit transfer, AK-ER49-1 can be used in flat, horizontal, vertical and overhead positions, reducing the need for multiple wire types on a single job.
Smooth Bead on Thin Plate.
The wire produces a consistent, smooth bead profile on thin sections, which reduces the need for grinding and improves surface finish.
Where It Is Used
- Welding of low carbon steel structures in fabrication and maintenance.
- Joining thin plates where a smooth bead and minimal spatter are required.
- Welding on steels with moderate rust or oxidation where full cleaning is not feasible.
- All-position welding using short-circuit transfer in structural and pipeline applications.
Who It Is For
- Welding distributors supplying CO2 welding wires for structural steel.
- Fabricators working with thin to medium plate in low carbon and low alloy steel.
- Maintenance teams requiring a reliable wire for field welding with variable joint conditions.
Problems It Solves
- Porosity in welds caused by poor joint cleanliness or inconsistent shielding gas flow when using less stable wires.
- Excessive spatter during high-current welding that increases cleanup time and reduces deposition efficiency.
- Need for multiple wire types to cover different welding positions, especially in tight or overhead access areas.
Specifications
Published by the factory for AK-ER49-1. Values not shown are not published on the datasheet and are marked as such rather than estimated.
| Standard | Designation |
|---|---|
| Classification 1 | EN ISO 14341-B: G 49 A 3 C G7 |
| Classification 2 | AWS A5.18 ER70S-7 |
| Classification 3 | GB/T 8110 ER49-1 |
| Element | Content |
|---|---|
| C | ≤0.11 |
| Si | 0.65-0.95 |
| Mn | 1.8-2.1 |
| S | ≤0.030 |
| P | ≤0.030 |
| Ni | ≤0.30 |
| Cr | ≤0.20 |
| Cu | ≤0.5 |
| Other | ≤0.50 |
| Property | Value |
|---|---|
| Tensile strength (MPa) | ≥490 |
| Yield Stress (MPa) | ≥372 |
| Elongation (%) | ≥20J |
| Impact values (J) | ≥47J/25℃ |
Technical Features
- H08Mn2SiA core wire with copper-plated surface for consistent feeding and arc stability.
- Chemical composition: C ≤0.11, Si 0.65-0.95, Mn 1.8-2.1, S ≤0.030, P ≤0.030, Ni ≤0.30, Cr ≤0.20, Cu ≤0.5, Other ≤0.50.
- Deposited metal tensile strength ≥490 MPa, yield stress ≥372 MPa, elongation ≥20%
- Impact toughness ≥47 J at 25℃.
- Supplied to EN ISO 14341-B: G 49 A 3 C G7, AWS A5.18 ER70S-7, and GB/T 8110 ER49-1 standards.
Use Guide
- Select wire diameter based on material thickness and welding position; use shorter arc length to reduce spatter and improve bead appearance.
- Ensure shielding gas is clean and dry; use CO2 gas with a flow rate appropriate for the welding current and joint configuration.
- Clean joint surfaces of oil, rust, paint and moisture before welding to minimize porosity risk.
- Store wire in sealed packaging to prevent moisture absorption; re-dry if exposed to humid conditions before use.
How It Compares
AK-ER49-1 and ER70S-6 both weld low carbon steel with CO2 shielding, but ER70S-6 has higher silicon and manganese levels, which increases weld metal strength and toughness but may increase spatter. AK-ER49-1 is optimized for low spatter and smooth bead formation, especially in short-circuit transfer.
Related Grades
Other welding wire in the same family.
AK-ER49-1 Questions
What standards does AK-ER49-1 meet?
What are the mechanical properties of the deposited metal?
Can this wire be used for all-position welding?
What is the chemical composition range for carbon and silicon?
What packing is AK-ER49-1 supplied in?
Can we test AK-ER49-1 before placing a production order?
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