AK-W607DR Low-Temperature Steel Electrode for -60℃ Service.
A low-hydrogen sodium-coated electrode for all-position welding of low-temperature steels, delivering high impact toughness at -60℃ with controlled nickel content.
Product Overview
AK-W607DR is a low-temperature steel electrode with a low-hydrogen sodium coating containing nickel, designed for use with DC reverse polarity and suitable for all welding positions.
The deposited metal maintains impact toughness of at least 54 J at -60℃, making it suitable for critical applications in cryogenic environments and low-temperature service structures such as 09MnDR.
It meets the EN ISO 2560-B:E 7015-C 1, AWS A5.5 E7015-C1, and GB/T 5117 E5015-N5 classifications, with chemical composition and mechanical properties verified to support performance in demanding low-temperature conditions.
Application: Welding -60℃ low temperature steel structure, such as 09MnDR etc.
Key Benefits
High Impact Toughness at -60℃.
The deposited metal achieves a minimum impact value of 54 J at -60℃, ensuring reliable performance in cryogenic and low-temperature service environments.
Low-Hydrogen Sodium Coating
The low-hydrogen sodium coating minimizes hydrogen content in the weld metal, reducing the risk of cold cracking in high-strength and low-temperature applications.
All-Position Welding Capability
AK-W607DR can be used in flat, horizontal, vertical, and overhead positions, allowing for consistent weld quality across complex joint geometries without changing consumables.
Controlled Nickel Content
The chemical composition includes 0.60-1.0% nickel, which enhances low-temperature toughness and supports compatibility with low-temperature base metals such as 09MnDR.
Where It Is Used
- Welding of low-temperature steel structures operating at -60℃.
- Fabrication and repair of cryogenic storage tanks and vessels.
- Construction of pipelines and pressure equipment in cold climates.
- Use with base metals such as 09MnDR and similar low-temperature steels.
Who It Is For
- Welding consumable distributors supplying low-temperature welding electrodes.
- Fabricators working with cryogenic and low-temperature steel structures.
- EPC contractors and maintenance teams handling pipelines and vessels in cold environments.
Problems It Solves
- Achieving required impact toughness at -60℃ in weld metal when joining low-temperature steels like 09MnDR.
- Managing hydrogen-induced cracking risk in high-strength, low-temperature applications through low-hydrogen electrode selection.
- Using a single electrode that performs reliably across all welding positions without requalification or parameter changes.
Specifications
Published by the factory for AK-W607DR. Values not shown are not published on the datasheet and are marked as such rather than estimated.
| Standard | Designation |
|---|---|
| Classification 1 | EN ISO 2560-B:E 7015-C 1 |
| Classification 2 | AWS A5.5 E7015-C1 |
| Classification 3 | GB/T 5117 E5015-N5 |
| Element | Content |
|---|---|
| C | 0.07 |
| Si | 0.6 |
| Mn | 1.0-1.60 |
| S | 0.009 |
| P | 0.015 |
| Ni | 0.60-1.0 |
| Property | Value |
|---|---|
| Tensile strength (MPa) | ≥490 |
| Yield Stress (MPa) | ≥390 |
| Elongation (%) | ≥22 |
| Impact values (J) | ≥54J/-60℃ |
| Diameter | Current range |
|---|---|
| 2.5mm | 60-100A |
| 3.2mm | 80-130A |
| 4.0mm | 140-200A |
| 5.0mm | 180-240A |
Technical Features
- Low-hydrogen sodium coating with nickel content between 0.60% and 1.0%
- Deposited metal tensile strength of at least 490 MPa and yield stress of at least 390 MPa.
- Elongation of at least 22% and impact energy of at least 54 J at -60℃.
- Supplied in 2.5 mm, 3.2 mm, 4.0 mm, and 5.0 mm diameters with recommended current ranges for each.
- Meets EN ISO 2560-B:E 7015-C 1, AWS A5.5 E7015-C1, and GB/T 5117 E5015-N5 classifications.
Use Guide
- Select electrode diameter based on joint thickness and position; use 2.5 mm for thin sections and 5.0 mm for heavier sections.
- Set welding current within the recommended range: 2.5 mm (60-100 A), 3.2 mm (80-130 A), 4.0 mm (140-200 A), 5.0 mm (180-240 A).
- Use DC reverse polarity (DCEN) for stable arc and consistent weld quality.
- Keep electrodes dry in sealed packaging; re-dry if exposed to moisture before use.
- Clean joint surfaces from rust, oil, paint, and moisture before welding to prevent porosity and cracking.
How It Compares
AK-W607DR and E7015 both belong to the low-hydrogen sodium-coated category and are suitable for all positions, but AK-W607DR is specifically formulated for low-temperature service with nickel addition to enhance toughness at -60℃. Standard E7015 electrodes may not meet the same impact requirements at such low temperatures. Cellulosic electrodes offer deeper penetration but are not suitable for low-temperature applications due to higher hydrogen content and lower toughness.
Related Grades
Other welding electrodes in the same family.
AK-W607DR Questions
What is the impact toughness of the deposited metal at -60℃?
Which base metals is this electrode suitable for?
What are the recommended current ranges for each diameter?
What standards does AK-W607DR meet?
What packing is AK-W607DR supplied in?
Can we test AK-W607DR before placing a production order?
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