AK-ER317L Stainless Steel Welding Wire for Corrosion-Resistant Petrochemical Applications.
A 19%Cr-14%Ni-3%Mo stainless steel wire with enhanced resistance to acetic acid, sulfurous acid, phosphoric acid, and chloride-induced pitting corrosion, suitable for welding 06Cr19Ni14Mo3 and similar materials.
Product Overview
AK-ER317L is a solid stainless steel welding wire classified under EN ISO 14343-A/G 18 15 3L, AWS A5.9 ER317L, and GB/T 29713 S317L. It is formulated for use in petrochemical equipment and similar high-corrosion environments.
The wire contains 3.0-4.0% molybdenum, which provides excellent resistance to pitting corrosion in chloride-containing environments and improved performance in acetic acid, sulfurous acid, phosphoric acid, and salt solutions.
Application: For petrochemical equipment, etc., such as welding of 06Cr19Ni14Mo3 and other materials.
Key Benefits
High Resistance to Acid and Chloride Corrosion.
The 3.0-4.0% molybdenum content enhances resistance to pitting and crevice corrosion in aggressive environments, including acetic acid, sulfurous acid, phosphoric acid, and chloride-rich media.
Suitable for 06Cr19Ni14Mo3 and Similar Alloys.
Designed for welding 06Cr19Ni14Mo3 and other similar materials, ensuring compatibility in petrochemical and chemical processing equipment.
Consistent Mechanical Properties
Deposited metal achieves a minimum tensile strength of 510 MPa and elongation of at least 25%, supporting structural integrity in demanding service conditions.
Controlled Chemical Composition
Precise composition with carbon at 0.3%, silicon 0.30-0.65%, manganese 1.0-2.5%, sulfur and phosphorus each at 0.03%, nickel 13.0-15.0%, chromium 18.5-20.5%, and copper 0.75% ensures predictable weld metal performance.
Where It Is Used
- Welding of petrochemical equipment exposed to aggressive chemical environments.
- Fabrication and repair of vessels and piping using 06Cr19Ni14Mo3 and similar materials.
- Applications requiring resistance to chloride-induced pitting and acid corrosion.
Who It Is For
- Petrochemical plant fabricators and maintenance teams.
- Welding distributors supplying consumables for chemical processing equipment.
- Fabricators working with 06Cr19Ni14Mo3 and other high-molybdenum stainless steels.
Problems It Solves
- Matching filler metal chemistry to base metals like 06Cr19Ni14Mo3 to ensure weld corrosion resistance meets service requirements.
- Sourcing a single, certified welding wire that meets multiple international standards (EN ISO 14343-A, AWS A5.9, GB/T 29713) without needing multiple suppliers.
- Achieving consistent weld metal properties with controlled carbon (0.3%) and low sulfur/phosphorus (0.03%) to prevent intergranular corrosion and maintain toughness.
Specifications
Published by the factory for AK-ER317L. Values not shown are not published on the datasheet and are marked as such rather than estimated.
| Standard | Designation |
|---|---|
| Classification | EN ISO 14343-A/G 18 15 3L AWS A5.9 ER317L GB/T 29713 S317L |
| Element | Content |
|---|---|
| C | 0.3 |
| Si | 0.30-0.65 |
| Mn | 1.0-2.5 |
| S | 0.03 |
| P | 0.03 |
| Ni | 13.0-15.0 |
| Cr | 18.5-20.5 |
| Mo | 3.0-4.0 |
| Cu | 0.75 |
| Property | Value |
|---|---|
| Tensile strength (MPa) | ≥510 |
| Elongation (%) | ≥25 |
Technical Features
- Solid stainless steel wire with 19% Cr, 14% Ni, and 3.0-4.0% Mo for enhanced corrosion resistance.
- Complies with EN ISO 14343-A/G 18 15 3L, AWS A5.9 ER317L, and GB/T 29713 S317L standards.
- Carbon content: 0.3%
- Silicon: 0.30-0.65%, Manganese: 1.0-2.5%, Sulfur: 0.03%, Phosphorus: 0.03%
- Nickel: 13.0-15.0%, Chromium: 18.5-20.5%, Molybdenum: 3.0-4.0%, Copper: 0.75%
- Minimum tensile strength of 510 MPa, elongation of at least 25%
Use Guide
- Select wire diameter based on joint configuration and welding position; AKWELD offers AK-ER317L in standard diameters suitable for GMAW and other processes.
- Clean base metal surfaces of oil, grease, rust, and moisture before welding to avoid contamination and ensure consistent weld quality.
- Use shielding gas as specified in the welding procedure; typical gases include argon-rich mixtures for stable arc and good bead appearance.
- Store wire in dry conditions and avoid exposure to humidity; re-dry if exposed to moisture before use to prevent porosity.
How It Compares
AK-ER317L is a 19%Cr-14%Ni-3%Mo stainless steel wire designed for high corrosion resistance. It differs from standard ER308L and ER316L wires by containing higher molybdenum (3.0-4.0%) for improved resistance to chloride pitting and acid environments. While ER316L offers good general corrosion resistance, AK-ER317L is better suited for aggressive chemical service. ER317L is not recommended for applications requiring ultra-low carbon (e.g., <0.03%) or where higher nickel content is needed.
Related Grades
Other welding wire in the same family.
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