AK-E81T1-Ni1M Flux-Cored Wire for Low-Temperature Structural Welding.
A rutile flux-cored wire with 1% Ni and ultra-low diffusible hydrogen, designed for high-performance welding of critical structures requiring excellent low-temperature impact toughness.
Product Overview
AK-E81T1-Ni1M is a rutile flux-cored wire containing 0.8–1.1% nickel, formulated for welding structural components that require high toughness at low temperatures. The deposited metal has ultra-low diffusible hydrogen content, which reduces the risk of hydrogen-induced cracking in critical applications.
The wire delivers stable arc performance, minimal spatter, and a smooth, well-shaped weld bead with excellent slag removal. It is suitable for use in bridge, port machinery, shipbuilding, offshore platform, and LPG cryogenic equipment fabrication where mechanical integrity and weld quality are essential.
Application: Suitable for welding bridges, port machinery, shipbuilding, offshore platforms, LPG cryogenic equipment, etc. of the same strength level.
Key Benefits
Ultra-Low Diffusible Hydrogen
The wire’s formulation ensures the deposited metal has ultra-low diffusible hydrogen, which helps prevent cold cracking in high-stress or low-temperature environments.
Stable Arc and Low Spatter.
The rutile flux system provides a stable arc across the recommended current range, reducing spatter and improving weld consistency during automated or semi-automated processes.
Excellent Slag Removal
The slag produced is easy to remove, reducing post-weld cleaning time and minimizing the risk of slag entrapment in subsequent passes.
High Low-Temperature Impact Toughness.
The 1% nickel content and controlled chemistry result in excellent impact performance at low temperatures, meeting the demands of cryogenic and offshore applications.
Where It Is Used
- Welding of bridges and port machinery.
- Shipbuilding and offshore platform structures.
- LPG cryogenic storage tanks and equipment.
- Structural components requiring high toughness at low temperatures.
Who It Is For
- Welding consumable distributors supplying flux-cored wires for structural and offshore projects.
- Fabricators of cryogenic and low-temperature equipment.
- Shipyards and offshore contractors requiring consistent, code-compliant weld metal properties.
Problems It Solves
- Achieving low-temperature impact toughness in welds without compromising arc stability or slag removal.
- Reducing hydrogen-related cracking risk in thick-section or high-stress joints through ultra-low diffusible hydrogen content.
- Maintaining consistent weld quality across long production runs with minimal spatter and easy slag removal.
Specifications
Published by the factory for AK-E81T1-Ni1M. 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 4 1Ni P M1 1 |
| Classification 2 | AWS A5.20 E81T1-Ni1 |
| Classification 3 | GB/T 17493 E551T1-Ni1M |
| Element | Content |
|---|---|
| C | 0.12 |
| Mn | 1.50 |
| P | 0.03 |
| S | 0.03 |
| Si | 0.80 |
| Ni | 0.8-1.1 |
Mechanical property data for this grade is not published on the factory datasheet. Ask our technical team for the test record before you qualify it.
| Diameter | Current range |
|---|---|
| 1.0mm | :15-20V / 100-250A |
| 1.2mm | :22-32V / 180-300A |
| 1.6mm | :25-38V / 280-400A |
Technical Features
- Rutile flux-cored wire with 0.8–1.1% nickel content.
- Supplied to AWS A5.20 E81T1-Ni1, EN ISO 17632- A:T 46 4 1Ni P M1 1, and GB/T 17493 E551T1-Ni1M classifications.
- Deposited metal chemistry: C 0.12%, Mn 1.50%, P 0.03%, S 0.03%, Si 0.80%, Ni 0.8–1.1%
- Recommended welding parameters: 1.0 mm – 15–20 V / 100–250 A; 1.2 mm – 22–32 V / 180–300 A; 1.6 mm – 25–38 V / 280–400 A.
Use Guide
- Select wire diameter based on joint thickness and welding position, then set voltage and current within the recommended ranges.
- Ensure the wire is stored in a dry environment and protected from moisture before use to maintain low hydrogen levels.
- Clean the joint surfaces of rust, oil, paint, and moisture prior to welding to avoid contamination and porosity.
- Use proper shielding gas as specified in the welding procedure to ensure consistent arc stability and weld quality.
How It Compares
AK-E81T1-Ni1M and E81T1-Ni2 are both flux-cored wires with nickel content for low-temperature service, but AK-E81T1-Ni1M contains 0.8–1.1% Ni, which provides a balance of toughness and weldability. Higher nickel variants may offer better impact performance but at increased cost and potential for solidification cracking. Basic flux-cored wires offer lower hydrogen but require stricter storage and handling. Rutile flux systems like AK-E81T1-Ni1M are more forgiving in field conditions due to better arc stability and slag removal.
Related Articles
Technical background on this grade from the AKWELD knowledge centre.
Related Grades
Other welding wire in the same family.
AK-E81T1-Ni1M Questions
What are the recommended welding parameters for each diameter?
Which standards does this wire meet?
What is the nickel content and carbon content in the deposited metal?
Can I get technical data sheets and packaging details before ordering?
What packing is AK-E81T1-Ni1M supplied in?
Can we test AK-E81T1-Ni1M before placing a production order?
Request a Quotation for AK-E81T1-Ni1M
Send the diameter, the quantity and the destination port. Our technical team replies with packing, pricing and the data you need to qualify the grade.