AKR417 Low-Alloy Heat-Resistant Electrode for High-Temperature and Corrosive Service.
A low-sodium coated electrode for all-position welding of high-strength, heat-resistant steels with excellent creep resistance and low-temperature toughness in demanding industrial environments.
Product Overview
AKR417 is a low-sodium type covered electrode for manual metal arc welding of low alloy heat-resistant steels. It is designed for DC reverse polarity operation and supports all-position welding, including flat, horizontal, vertical and overhead positions.
The electrode delivers high strength and excellent creep resistance at elevated temperatures, along with good low-temperature toughness and resistance to temper embrittlement. It is suitable for field installation and construction in harsh service conditions.
It complies with EN ISO 3580 B E6215-G, AWS A5.5 E9015-G, and GB/T 5118 E6215 2C1MV classifications. It also meets the project requirements specified in AWS A5.5 B9016-B3.
Application: Used in petroleum refining, petrochemical, chemical, power generation, using harsh conditions, such as corrosion medium complex AsMe SA542 Tpye of large equipment. Class D.4 A832 Gr. 22 v (2.25Cr1Mo0.25v) class steel plate welding.
Key Benefits
Low Impurity Deposited Metal.
The deposited metal has extremely low levels of sulfur and phosphorus, with S at 0.003% and P at 0.006%, ensuring high purity and improved weld integrity.
Excellent Low-Temperature Toughness
The deposited metal achieves impact energy greater than 54 J at minus 30 degrees C, providing reliable performance in cold environments.
High Resistance to Temper Embrittlement.
The electrode produces weld metal with a very low x factor, indicating strong resistance to temper embrittlement during long-term exposure to high temperatures.
All-Position Welding Capability
The electrode maintains stable arc characteristics and good weld pool control in all positions, enabling consistent weld quality during field construction.
Where It Is Used
- Welding of large equipment in petroleum refining and petrochemical plants.
- Construction and maintenance of chemical processing units under corrosive and high-temperature conditions.
- Power generation systems requiring high-temperature strength and creep resistance.
- Fabrication of pressure vessels and piping using Class D.4 A832 Gr.
Who It Is For
- Welding consumable distributors supplying materials for high-temperature and corrosive service applications.
- Fabricators and EPC contractors working with heat-resistant steels in oil & gas and power generation projects.
- Maintenance teams performing field repairs on equipment exposed to elevated temperatures and complex media.
Problems It Solves
- Achieving high-strength, creep-resistant welds in heat-resistant steels without compromising low-temperature toughness.
- Reducing the risk of temper embrittlement in weld joints exposed to long-term high-temperature service.
- Ensuring consistent weld quality and mechanical properties in field welding where environmental control is limited.
Specifications
Published by the factory for AKR417. Values not shown are not published on the datasheet and are marked as such rather than estimated.
| Standard | Designation |
|---|---|
| Classification | EN ISO 3580 B E6215-G AWS A5.5 E9015-G GB/T 5118 E6215 2C1MV |
| Element | Content |
|---|---|
| C | 0.06 |
| Mn | 0.72 |
| P | 0.006 |
| S | 0.003 |
| Si | 0.19 |
| Cr | 2.27 |
| Mo | 1.02 |
| Sb | 0.001 |
| As | 0.004 |
| Sn | 0.001 |
| V | 0.22 |
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.
Technical Features
- Low-sodium coating for stable arc and good slag removal.
- Deposited metal with carbon at 0.06%, chromium at 2.27%, molybdenum at 1.02%, and vanadium at 0.22%
- Sulfur content in deposited metal at 0.003%, phosphorus at 0.006%
- Impact toughness exceeding 54 J at minus 30 degrees C.
- Low x factor indicating high resistance to temper embrittlement.
- Complies with EN ISO 3580 B E6215-G, AWS A5.5 E9015-G, GB/T 5118 E6215 2C1MV, and AWS A5.5 B9016-B3.
Use Guide
- Use DC reverse polarity for optimal arc stability and penetration.
- Maintain a short arc length during welding to ensure consistent weld quality and minimize spatter.
- Keep electrodes dry in sealed packaging; re-dry if exposed to moisture before use.
- Clean joint surfaces from oil, rust, paint, and moisture prior to welding to avoid defects.
How It Compares
AKR417 is a low-sodium electrode designed for high-temperature and corrosive service, differing from standard low-alloy electrodes by its low impurity levels and high resistance to temper embrittlement. Compared to ordinary steel welding materials, it offers superior creep strength, low-temperature toughness, and weld metal purity. It is not intended for general-purpose mild steel welding but is specifically suited for heat-resistant steels in demanding industrial applications.
Related Grades
Other welding electrodes in the same family.
AKR417 Questions
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Request a Quotation for AKR417
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.