AK-60QNH Low-Alloy Steel Gas Shielded Solid Welding Wire for Corrosion-Resistant Bridge Steel.
A solid welding wire designed for high-performance welding of weathering steel grades like Q500NH, delivering excellent atmospheric corrosion resistance and mechanical strength in demanding environments.
Product Overview
AK-60QNH is a low-alloy steel gas shielded solid welding wire formulated for use with CO2 or mixed shielding gases. It is intended for welding important bridge structures made from corrosion-resistant steels such as Q500NH.
The wire delivers excellent atmospheric corrosion resistance in the weld metal, which extends service life under various climatic conditions. Mechanical properties of the deposited metal meet the requirements for structural applications, with good crack resistance during welding and in service.
Application: Used for welding of important bridge corrosion-resistant steel such as Q500NH, etc.
Key Benefits
Excellent Atmospheric Corrosion Resistance.
The weld metal produced by AK-60QNH exhibits enhanced resistance to atmospheric corrosion, suitable for bridge components exposed to humid, salty or industrial environments.
High Mechanical Strength and Crack Resistance.
The weld metal maintains high strength and good resistance to cracking, which is critical for load-bearing joints in weathering steel structures.
Compatibility with Q500NH and Similar Grades.
Specifically developed for welding Q500NH and similar weathering steels, ensuring chemical and mechanical compatibility with the base metal.
Consistent Performance Across Positions.
The wire performs reliably in flat, horizontal, vertical and overhead welding positions when used within the recommended parameters.
Where It Is Used
- Welding of weathering steel bridge structures, including main girders, trusses and support members.
- Fabrication and repair of critical components in outdoor steel structures exposed to variable weather.
- Construction and maintenance of infrastructure in coastal, industrial or high-humidity regions.
Who It Is For
- Bridge and structural steel fabricators working with Q500NH and similar weathering steels.
- EPC contractors responsible for large-scale infrastructure projects requiring long-term corrosion resistance.
- Welding distributors supplying consumables for outdoor structural applications.
Problems It Solves
- Achieving weld metal corrosion resistance that matches the base metal in weathering steel applications, avoiding premature degradation.
- Ensuring mechanical properties and crack resistance in welds subjected to cyclic loading and environmental stress.
- Finding a single wire that performs consistently across multiple welding positions without requalification.
Specifications
Published by the factory for AK-60QNH. Values not shown are not published on the datasheet and are marked as such rather than estimated.
| Standard | Designation |
|---|---|
| Classification | GB/T 8110 ER60-G |
| Element | Content |
|---|---|
| C | 0.07 |
| Mn | 1.62 |
| P | 0.012 |
| S | 0.010 |
| Si | 0.47 |
| Cu | 0.21 |
| Ni | 0.45 |
| Cr | 0.41 |
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 |
|---|---|
| 0.8mm | F/H-50-180A / V(OH)-50-100A |
| 1.0mm | F/H-80-250A / V(OH)-70-160A |
| 1.2mm | F/H-100-360A / V(OH)-80-220A |
| 1.6mm | F/H-250-500A |
Technical Features
- Solid welding wire for gas shielded arc welding (GMAW) with CO2 or mixed gases.
- Complies with GB/T 8110 ER60-G standard.
- Chemical composition: C 0.07%, Mn 1.62%, P 0.012%, S 0.010%, Si 0.47%, Cu 0.21%, Ni 0.45%, Cr 0.41%
- Available in diameters: 0.8 mm, 1.0 mm, 1.2 mm, 1.6 mm.
- Recommended current ranges: 0.8 mm (flat/horizontal 50-180 A, vertical/overhead 50-100 A), 1.0 mm (flat/horizontal 80-250 A, vertical/overhead 70-160 A), 1.2 mm (flat/horizontal 100-360 A, vertical/overhead 80-220 A), 1.6 mm (flat/horizontal 250-500 A)
Use Guide
- Select wire diameter based on joint thickness and welding position, then set current within the recommended range for the selected position.
- Ensure the shielding gas is clean and dry, and maintain proper gas flow rate to avoid porosity and spatter.
- Clean base metal surfaces of rust, oil, paint and moisture before welding to ensure sound welds.
- Use proper preheat and interpass temperature control when welding thick sections or in cold environments to prevent cracking.
How It Compares
AK-60QNH is a solid wire for gas shielded welding of weathering steel, designed to match the corrosion resistance and mechanical properties of Q500NH. It differs from standard ER70S-6 wires, which are intended for mild steel and do not provide the same level of atmospheric corrosion resistance. Unlike flux-cored wires, AK-60QNH produces a clean weld with no slag, reducing post-weld cleaning and improving bead appearance.
Related Grades
Other welding wire in the same family.
AK-60QNH Questions
What standard does AK-60QNH comply with?
Which base metals is this wire suitable for?
What are the chemical composition values?
What are the recommended welding parameters?
What packing is AK-60QNH supplied in?
Can we test AK-60QNH before placing a production order?
Request a Quotation for AK-60QNH
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.