E70C-6M Metal Cored Wire for Carbon Steel in Mixed Gas Welding.
A metal cored wire designed for automated and mechanized welding of carbon steel with excellent impact toughness down to -60°F in single or multipass applications.
Product Overview
E70C-6M is a metal cored welding wire for carbon steel applications, formulated for use with mixed gas shielding consisting of 75-95% Argon and the balance Carbon Dioxide. It meets the EN ISO 17632-A: T 46 2 M M21 H10 and AWS A5.18 E70C-6M GB/T 10045 T 49 3 T 15-1 M21 A classifications.
The wire delivers excellent impact toughness down to -60°F, making it suitable for demanding environments such as offshore structures, pipelines, pressure vessels, and heavy equipment. It is used in both single and multipass welds across automated and mechanized welding processes.
Application: For carbon steel applications using mixed gas 75-95% Argon (Ar)/ balance Carbon Dioxide (CO2)，Non-alloyed and fine grain steels、Single or multipass welds、Automated and mechanized welding、Offshore 、Pipeline 、Pressure vessels 、Heavy equipment 、Structural fabrication 、Industrial machinery.
Key Benefits
Impact Toughness to -60°F.
The deposited metal achieves impact values of 92 J, 88 J, and 79 J at -60°F, ensuring reliable performance in low-temperature service conditions.
High Strength and Ductility.
Tensile strength is at least 480 MPa, yield stress at least 400 MPa, and elongation at least 22 percent, providing strong, ductile welds in structural and pressure-containing components.
Stable Welding with Mixed Gas.
Optimized for 75-95% Argon and balance Carbon Dioxide shielding gas, it produces consistent arc stability, low spatter, and a smooth weld bead profile in automated and mechanized systems.
Suitable for Complex Applications.
Designed for use in offshore, pipeline, pressure vessel, heavy equipment, structural fabrication, and industrial machinery welding, where weld integrity and consistency are critical.
Where It Is Used
- Offshore structures and platforms.
- Pipeline construction and maintenance.
- Pressure vessels and storage tanks.
- Heavy equipment and mining machinery.
- Structural fabrication of buildings and bridges.
- Industrial machinery and plant components.
Who It Is For
- Welding distributors supplying consumables for carbon steel projects.
- Fabricators using automated or mechanized welding on carbon steel.
- Contractors working on offshore, pipeline, or pressure vessel installations.
- Maintenance teams requiring consistent, code-compliant welds in demanding environments.
Problems It Solves
- Achieving required impact toughness at low temperatures in carbon steel welds without sacrificing strength or ductility.
- Maintaining consistent weld quality in automated and mechanized processes using mixed gas shielding.
- Sourcing a single wire that meets multiple international standards (EN ISO 17632-A, AWS A5.18, GB/T 10045) for global projects.
Specifications
Published by the factory for E70C-6M. Values not shown are not published on the datasheet and are marked as such rather than estimated.
| Standard | Designation |
|---|---|
| Classification 1 | EN ISO 17632-A: T 46 2 M M21 H10 |
| Classification 2 | AWS A5.18 E70C-6M GB/T 10045 T 49 3 T 15-1 M21 A |
| Element | Content |
|---|---|
| C | ≤0.12 |
| Si | ≤0.90 |
| Mn | ≤1.75 |
| S | ≤0.03 |
| P | ≤0.03 |
| Ni | ≤0.50 |
| Cr | ≤0.20 |
| Mo | ≤0.30 |
| Property | Value |
|---|---|
| Tensile strength (MPa) | ≥480 |
| Yield Stress (MPa) | ≥400 |
| Elongation (%) | ≥22J |
| Impact values (J) | ≥27J/-30℃ |
| Impact values (J) | 163J 172J 178J/-40℃ |
| Impact values (J) | 92J 88J 79J/-60℃ |
| Diameter | Current range |
|---|---|
| 1.2mm | 20-30/V 140-250/A |
| 1.6mm | 20-30/V 160-260/A |
Technical Features
- Metal cored wire for carbon steel with mixed gas shielding (75-95% Ar / balance CO2)
- Deposited metal tensile strength at least 480 MPa, yield stress at least 400 MPa, elongation at least 22 percent.
- Impact values of 27 J at -30°C, 163 J, 172 J, 178 J at -40°C, and 92 J, 88 J, 79 J at -60°C.
- Chemical composition: C ≤0.12%, Si ≤0.90%, Mn ≤1.75%, S ≤0.03%, P ≤0.03%, Ni ≤0.50%, Cr ≤0.20%, Mo ≤0.30%
- Available in 1.2 mm and 1.6 mm diameters with recommended parameters for each.
Use Guide
- For 1.2 mm diameter: use voltage 20-30 V and current 140-250 A.
- For 1.6 mm diameter: use voltage 20-30 V and current 160-260 A.
- Ensure proper shielding gas mix of 75-95% Argon and balance Carbon Dioxide during welding.
- Clean joint surfaces of rust, oil, paint, and moisture before welding to prevent porosity and ensure sound welds.
- Store wire in sealed packaging and avoid exposure to moisture; re-dry if exposed before use.
How It Compares
E70C-6M and E70C-6 are both metal cored wires for carbon steel, but E70C-6M is specifically designed for mixed gas shielding with improved impact toughness at low temperatures. E70C-6 is typically used with CO2 shielding and may have lower impact values at sub-zero temperatures. E70C-6M is better suited for applications requiring low-temperature toughness and automated welding in critical infrastructure.
Related Grades
Other welding wire in the same family.
E70C-6M Questions
What are the recommended welding parameters for 1.2 mm and 1.6 mm diameters?
Which standards does E70C-6M meet?
What is the impact toughness of the deposited metal at -60°F?
Can I get a full catalogue and packing details before ordering?
What packing is E70C-6M supplied in?
Can we test E70C-6M before placing a production order?
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