AK-ER316L Ultra-Low Carbon Stainless Steel Welding Wire for Corrosion-Resistant Applications.
A 19% Cr-12% Ni-2% Mo stainless steel wire with excellent resistance to acetic acid, sulfurous acid, phosphoric acid, and salt environments, suitable for all-position welding in petrochemical and chemical equipment fabrication.
Product Overview
AK-ER316L is an ultra-low carbon stainless steel welding wire classified under AWS A5.9 ER316L and GB/T 29713 S316. It contains 2.0-3.0% molybdenum, which enhances resistance to pitting and crevice corrosion in aggressive chemical environments.
The wire delivers a stable welding arc and produces a smooth, well-shaped weld bead. It is suitable for welding in all positions, making it suitable for complex joint geometries in field and shop fabrication.
Application: For petrochemical, chemical fertilizer equipment, etc., such as 022Cr 19Ni12Mo2 (S316L) and other materials welding.
Key Benefits
High Corrosion Resistance in Acidic and Salty Environments.
The addition of molybdenum (2.0-3.0%) improves resistance to acetic acid, sulfurous acid, phosphoric acid, and chloride-containing salts, making it suitable for service in petrochemical and chemical processing equipment.
Stable Arc and Smooth Weld Bead.
The wire provides a stable arc during welding and produces a clean, well-formed weld bead with minimal spatter, reducing post-weld cleanup and improving joint appearance.
All-Position Welding Capability
AK-ER316L can be used in flat, horizontal, vertical, and overhead positions without requiring changes in welding technique or consumable.
Low Carbon Content for Reduced Sensitization Risk.
With carbon content at or below 0.03%, the wire minimizes the risk of intergranular corrosion in the heat-affected zone during welding and service.
Where It Is Used
- Petrochemical and chemical fertilizer equipment fabrication.
- Welding of 022Cr19Ni12Mo2 (S316L) and similar stainless steel materials.
- Equipment exposed to acidic and chloride-rich environments.
- Pressure vessels and piping in chemical processing plants.
Who It Is For
- Welding consumable distributors supplying stainless steel welding wires for industrial applications.
- Fabricators of petrochemical and chemical processing equipment.
- Contractors working on chemical plant and refinery maintenance and construction.
Problems It Solves
- Achieving corrosion resistance in acidic and saline environments when welding 316L-type stainless steels.
- Avoiding intergranular corrosion due to carbon content exceeding 0.03% in the weld metal.
- Maintaining consistent weld quality across all welding positions without changing consumables.
Specifications
Published by the factory for AK-ER316L. Values not shown are not published on the datasheet and are marked as such rather than estimated.
| Standard | Designation |
|---|---|
| Classification | AWS A5.9 ER316L GB/T 29713 S316 |
| Element | Content |
|---|---|
| C | 0.3 |
| Si | 0.30-0.65 |
| Mn | 1.0-2.5 |
| S | 0.03 |
| P | 0.03 |
| Ni | 11.0-14.0 |
| Cr | 18.0-20.0 |
| Mo | 2.0-3.0 |
| Cu | 0.75 |
| Property | Value |
|---|---|
| Tensile strength (MPa) | 510 |
| Elongation (%) | 25 |
Technical Features
- Ultra-low carbon content (C ≤ 0.03%) to minimize sensitization.
- Chemical composition: Cr 18.0-20.0%, Ni 11.0-14.0%, Mo 2.0-3.0%, Si 0.30-0.65%, Mn 1.0-2.5%, S 0.03%, P 0.03%, Cu 0.75%
- Deposited metal tensile strength at least 510 MPa.
- Elongation at least 25%
- Supplied to AWS A5.9 ER316L and GB/T 29713 S316 classifications.
Use Guide
- Select wire diameter based on joint thickness and welding position. Use standard parameters for GMAW or GTAW processes.
- Clean the base metal surface from oil, grease, rust, and moisture before welding to ensure weld integrity.
- Store the wire in a dry environment and avoid exposure to humidity. Re-bake if exposed to moisture.
- Maintain consistent travel speed and arc length during welding to achieve uniform bead profile and avoid defects.
How It Compares
AK-ER316L is designed for low-carbon, corrosion-resistant welding in aggressive environments. It is not intended for high-temperature service above 800 degrees C where stabilization is required. For higher strength or different alloying needs, other grades such as ER317L or ER310 may be considered.
Related Grades
Other welding wire in the same family.
AK-ER316L Questions
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