AK-ENiCrCoMo-1 Nickel-Based Electrode for High-Temperature Corrosion-Resistant Alloys.
A low-hydrogen coated nickel-based electrode designed for all-position welding of Inconel, Incoloy, and iron-nickel-based high-temperature alloys.
Product Overview
AK-ENiCrCoMo-1 is a nickel-based alloy electrode with a low-hydrogen coating, formulated for welding high-temperature and corrosion-resistant alloys. It is classified under EN ISO 14172-E Ni 6117, AWS A5.11, ENiCrCoMo-1, GB/T 13814, and ENi6117.
The electrode's chemical composition is NiCr22Co12Mo, with a nominal range of 45% Ni, 20.0–26.0% Cr, 8.0–10.0% Mo, and 9.0–15.0% Co. It is suitable for all welding positions and delivers deposited metal with tensile strength of at least 620 MPa and yield stress of at least 400 MPa.
Application: Mainly used for welding nickel-based alloys such as Inconel600/601, Incoloy800H, Incoloy825 and HK40/HP40 iron-nickel-based high-temperature corr osion-resistant alloys.
Key Benefits
Low-Hydrogen Coating for Reduced Porosity.
The low-hydrogen coating minimizes hydrogen pickup in the weld metal, reducing the risk of cracking in high-stress or high-temperature service environments.
High Chromium and Molybdenum Content.
With 20.0–26.0% Cr and 8.0–10.0% Mo, the deposited metal offers excellent resistance to oxidation and corrosion at elevated temperatures.
All-Position Welding Capability
AK-ENiCrCoMo-1 can be used in flat, horizontal, vertical, and overhead positions, allowing consistent performance across complex joint geometries.
Compatibility with Nickel-Based Alloys.
The electrode is specifically designed for welding Inconel 600/601, Incoloy 800H, Incoloy 825, and HK40/HP40 iron-nickel-based alloys.
Where It Is Used
- Welding of Inconel 600 and 601 in petrochemical and power generation environments.
- Joining Incoloy 800H and 825 in high-temperature and corrosive service.
- Repair and fabrication of HK40 and HP40 iron-nickel-based alloys in industrial equipment.
- All-position welding in critical components exposed to thermal cycling and aggressive media.
Who It Is For
- Welding consumable distributors supplying specialty alloys for industrial applications.
- Petrochemical and power plant maintenance teams working with high-temperature alloys.
- Fabricators of heat exchangers, reactors, and piping systems requiring corrosion-resistant welds.
Problems It Solves
- Matching filler metal chemistry to nickel-based and iron-nickel-based high-temperature alloys to ensure weld metal properties meet service requirements.
- Avoiding hydrogen-induced cracking in critical welds by using a low-hydrogen coated electrode.
- Achieving consistent weld quality across all positions without changing consumables.
Specifications
Published by the factory for AK-ENiCrCoMo-1. Values not shown are not published on the datasheet and are marked as such rather than estimated.
| Standard | Designation |
|---|---|
| Classification 1 | EN ISO 14172-E Ni 6117 |
| Classification 2 | AWS A5.11 |
| Classification 3 | ENiCrCoMo-1 |
| Classification 4 | GB/T 13814 |
| Classification 5 | ENi6117 |
| Element | Content |
|---|---|
| C | 0.05-0.15 |
| Si | ≤1.0 |
| Mn | 3.00 |
| S | ≤0.015 |
| P | ≤0.020 |
| Fe | 5.0 |
| Ni | ≥45 |
| Cr | 20.0-26.0 |
| Mo | 8.0-10.0 |
| Co | 9.0-15.0 |
| Cu | 0.50 |
| Al | 1.50 |
| Ti | 0.60 |
| Property | Value |
|---|---|
| Tensile strength (MPa) | ≥620 |
| Yield Stress (MPa) | ≥400 |
| Elongation (%) | ≥22 |
| Impact values (J) | —— |
Technical Features
- Low-hydrogen coating for improved weld metal integrity.
- Chemical composition: NiCr22Co12Mo, with C 0.05–0.15%, Si ≤1.0%, Mn 3.00%, S ≤0.015%, P ≤0.020%, Fe 5.0%, Ni ≥45%, Cr 20.0–26.0%, Mo 8.0–10.0%, Co 9.0–15.0%, Cu 0.50%, Al 1.50%, Ti 0.60%
- Deposited metal tensile strength at least 620 MPa, yield stress at least 400 MPa, elongation at least 22%
- Supplied in diameters and lengths consistent with standard electrode packaging, with current ranges published per application.
Use Guide
- Select electrode diameter based on joint thickness and welding position. Use current ranges within the published limits to avoid overheating or poor fusion.
- Ensure joint surfaces are clean and free from oil, grease, moisture, and oxides before welding.
- Store electrodes in sealed packaging and re-dry if exposed to ambient conditions. Follow re-baking instructions if required.
- Remove slag completely between passes to prevent contamination and ensure sound weld metal in subsequent layers.
How It Compares
AK-ENiCrCoMo-1 is a nickel-based alloy electrode with high Cr and Mo content, suitable for high-temperature and corrosion-resistant applications. It differs from standard low-alloy electrodes by offering superior resistance to oxidation and chloride stress corrosion cracking. Compared to other nickel-based electrodes, it provides a balanced combination of strength, ductility, and weldability in all positions. It is not intended for use on carbon steel or low-alloy steels.
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Other welding electrodes in the same family.
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