AKM-55 Flux-Cored Wire for Low-Temperature Welding of 1% Ni Steel and X80 Pipeline.
A seamless flux-cored wire with 1% Ni content and ultra-low diffusible hydrogen (≤3 ml/100g), designed for high deposition efficiency and excellent impact toughness in critical low-temperature applications.
Product Overview
AKM-55 is a metal powder type seamless flux-cored wire containing 0.80–1.10% Ni, formulated for welding low-alloy steels requiring high toughness at low temperatures, including 1% Ni steel and X80 pipeline steel.
The wire delivers ultra-low diffusible hydrogen content (≤3 ml/100g), which reduces the risk of hydrogen-induced cracking in critical joints. Its seamless design contributes to a stable arc, minimal spatter, and a clean weld bead with almost no slag or dust.
AKM-55 is supplied to EN ISO 17632-A:T 46 4 1Ni M M21, AWS A5.18 E80C-Ni1, and GB/T 8110 E80C-Ni1 classifications, with recommended welding parameters for 1.2 mm and 1.6 mm diameters.
Application: Suitable for X80 pipeline steel bottoming and welding of bridges, port machinery, shipbuilding, offshore platforms, LPG storage tank low temperature equ ipment, such as welding of 1% Ni steel.
Key Benefits
Ultra-Low Diffusible Hydrogen
With a maximum diffusible hydrogen content of ≤3 ml/100g, AKM-55 reduces the risk of hydrogen-induced cracking in high-strength and low-temperature welds.
High Deposition Efficiency
The seamless flux-cored design and optimized powder formulation deliver high deposition efficiency, reducing the need for multiple passes and minimizing rework.
Stable Arc and Minimal Spatter.
The wire produces a soft and stable arc with low spatter, improving weld quality and reducing post-weld cleaning time.
Excellent Low-Temperature Impact Performance.
The deposited metal achieves high impact toughness, making it suitable for service in low-temperature environments such as LPG storage tanks and offshore platforms.
Where It Is Used
- Welding of X80 pipeline steel, especially in bottoming and critical joints.
- Construction of bridges, port machinery, and shipbuilding structures.
- Fabrication of offshore platforms and low-temperature equipment.
- Welding of 1% Ni steel components requiring high toughness and crack resistance.
Who It Is For
- Pipeline and oil & gas contractors working with high-strength, low-temperature steels.
- Shipbuilders and offshore fabricators requiring reliable, low-hydrogen consumables.
- Fabricators of LPG storage tanks and cryogenic equipment.
- Welding distributors supplying consumables for critical low-temperature applications.
Problems It Solves
- Achieving sufficient low-temperature impact toughness in welds for 1% Ni steel and X80 pipeline steel without compromising hydrogen control.
- Reducing the risk of hydrogen cracking in thick-section or high-stress joints through ultra-low diffusible hydrogen content.
- Minimizing spatter and slag during welding to improve productivity and reduce post-weld cleanup.
- Maintaining consistent weld quality across multiple passes and joint types with a single, reliable flux-cored wire.
Specifications
Published by the factory for AKM-55. 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 M M21 |
| Classification 2 | AWS A5.18 E80C-Ni1 |
| Classification 3 | GB/T 8110 E80C-Ni1 |
| Element | Content |
|---|---|
| C | 0.12 |
| Mn | 1.5 |
| P | 0.025 |
| S | 0.025 |
| Si | 0.9 |
| Ni | 0.80-1.10 |
| Mo | 0.30 |
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 |
|---|---|
| 1.2mm | :20-32V / 180-300A |
| 1.6mm | :25-35V / 250-350A |
Technical Features
- Seamless flux-cored wire with 0.80–1.10% Ni content.
- Ultra-low diffusible hydrogen content ≤3 ml/100g.
- Chemical composition: C 0.12%, Mn 1.5%, Si 0.9%, P 0.025%, S 0.025%, Mo 0.30%
- Supplied to EN ISO 17632-A:T 46 4 1Ni M M21, AWS A5.18 E80C-Ni1, and GB/T 8110 E80C-Ni1 classifications.
- Recommended parameters: 1.2 mm – 20–32 V / 180–300 A; 1.6 mm – 25–35 V / 250–350 A.
Use Guide
- Select wire diameter based on joint thickness and welding position: 1.2 mm for thin sections and vertical/overhead work, 1.6 mm for higher deposition rates in flat and horizontal positions.
- Set voltage and current within the recommended ranges: 20–32 V and 180–300 A for 1.2 mm; 25–35 V and 250–350 A for 1.6 mm.
- Ensure the wire is stored in a dry environment and not exposed to moisture before use.
- Clean the joint surfaces from rust, oil, paint, and moisture prior to welding to maintain weld quality and hydrogen control.
How It Compares
AKM-55 and AWS A5.18 E80C-Ni1 both provide low-hydrogen, nickel-alloyed flux-cored wire for low-temperature service. AKM-55 is designed with a seamless construction and ultra-low diffusible hydrogen (≤3 ml/100g), which enhances crack resistance. Compared to standard carbon steel flux-cored wires, it offers superior impact toughness and is specifically suited for 1% Ni steel and X80 pipeline applications. It is not intended for use on non-nickel base metals where lower nickel content is required.
Related Grades
Other welding wire in the same family.
AKM-55 Questions
What are the chemical composition limits for AKM-55?
What classifications does AKM-55 meet?
What are the recommended welding parameters?
What is the diffusible hydrogen content?
What packing is AKM-55 supplied in?
Can we test AKM-55 before placing a production order?
Request a Quotation for AKM-55
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.