AKR517 Low-Alloy Heat-Resistant Electrode for High-Temperature Service.
A low-sodium rutile-coated electrode for all-position welding of heat-resistant steels, delivering high strength and excellent creep resistance at elevated temperatures.
Product Overview
AKR517 is a low-sodium type coated 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.
The electrode features a core alloy composition that ensures high strength and excellent creep resistance in welded joints at elevated temperatures. It meets the chemical and mechanical requirements for use in demanding environments such as petroleum refining, petrochemical, chemical, and power generation applications.
It is suitable for welding steel grades such as ASTM SA387 Gr. 5 (5Cr-0.5Mo) and complies with AWS A5.5 E8016-B6 and EN ISO 3580 B E5516-5CM classifications. It also conforms to GB/T 5118 E5516 5CM.
Application: Used in petroleum refining petrochemical, chemical, power generaticn and other conditions of use harsh, corrosive medium large, complex equipment aSME SA387. Gr. 5 (5Cr- 0.5Mo) welding of steel.
Key Benefits
High Strength and Creep Resistance.
The deposited metal achieves high strength and excellent creep resistance at elevated temperatures, making it suitable for long-term service in high-temperature environments.
All-Position Welding Capability
AKR517 can be used in all welding positions, enabling consistent performance on complex joints during field installation and construction.
Low-Sodium Coating for Controlled Properties.
The low-sodium coating contributes to improved deposited metal purity and helps maintain consistent mechanical properties, especially in critical applications.
Compliance with Key Standards.
The electrode meets AWS A5.5 E8016-B6, EN ISO 3580 B E5516-5CM, and GB/T 5118 E5516 5CM, ensuring compatibility with international project specifications.
Where It Is Used
- Welding of heat-resistant steels in petroleum refining and petrochemical plants.
- Construction and maintenance of equipment in chemical processing environments.
- Power generation equipment requiring high-temperature performance.
- Field welding of complex structures using ASTM SA387 Gr.
Who It Is For
- Welding consumable distributors supplying materials for high-temperature applications.
- Fabricators and contractors working on pressure vessels and piping in harsh environments.
- Maintenance teams performing repairs on equipment exposed to elevated temperatures and corrosive media.
Problems It Solves
- Achieving high strength and creep resistance in welded joints at elevated temperatures for critical industrial equipment.
- Matching filler metal chemistry to base metals like 5Cr-0.5Mo steel to meet project specifications.
- Sourcing a single electrode that meets multiple international standards (AWS, ISO, GB) without needing multiple materials.
Specifications
Published by the factory for AKR517. Values not shown are not published on the datasheet and are marked as such rather than estimated.
| Standard | Designation |
|---|---|
| Classification 1 | EN ISO 3580 B E5516-5CM AWS A5.5 E8016-B6 |
| Classification 2 | GB/T 5118 E5516 5CM |
| Element | Content |
|---|---|
| C | 0.06 |
| Mn | 0.75 |
| P | 0.008 |
| S | 0.003 |
| Si | 0.23 |
| Cr | 5.5 |
| Mo | 0.53 |
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 |
|---|---|
| 3.2mm | 90-120A |
| 4.0mm | 140-180A |
| 5.0mm | :180-220A |
Technical Features
- Low-sodium rutile coating for all-position welding with DC reverse polarity.
- Deposited metal chemical composition: C 0.06%, Mn 0.75%, P 0.008%, S 0.003%, Si 0.23%, Cr 5.5%, Mo 0.53%
- Recommended welding current: 3.2 mm – 90-120 A, 4.0 mm – 140-180 A, 5.0 mm – 180-220 A.
- Complies with AWS A5.5 E8016-B6, EN ISO 3580 B E5516-5CM, and GB/T 5118 E5516 5CM.
Use Guide
- Select electrode diameter based on joint thickness and welding position. Use 3.2 mm for thin sections, 4.0 mm for medium, and 5.0 mm for thicker sections.
- Set welding current within the recommended range: 90-120 A for 3.2 mm, 140-180 A for 4.0 mm, 180-220 A for 5.0 mm.
- Ensure joint surfaces are clean and free from oil, rust, moisture, and contaminants before welding.
- Store electrodes in sealed packaging and re-bake if exposed to moisture before use.
How It Compares
AKR517 is a low-sodium rutile-coated electrode designed for heat-resistant steels, differing from standard mild steel electrodes like E6013 in both coating type and chemical composition. It provides higher strength and creep resistance at elevated temperatures, making it suitable for high-temperature service. Unlike basic-coated electrodes, it offers easier arc starting and better slag removal, but is not intended for low-hydrogen applications. It is specifically suited for 5Cr-0.5Mo steel welding, where mechanical properties and temperature resistance are critical.
Related Grades
Other welding electrodes in the same family.
AKR517 Questions
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Request a Quotation for AKR517
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.