AK-ER316LSi Low Carbon High Silicon Stainless Steel Welding Wire.
A super low carbon, high silicon stainless steel wire designed for high-speed welding of 19%13Ni2%Mo and similar grades, with excellent resistance to intergranular corrosion and improved weld pool fluidity.
Product Overview
AK-ER316LSi is a super low carbon and high silicon stainless steel welding wire used for gas metal arc welding (GMAW) of 19%13Ni2%Mo and similar stainless steels. The low carbon content minimizes the risk of intergranular corrosion, while the elevated silicon improves weld pool fluidity, supporting high-speed welding operations.
It is supplied to EN ISO 14343-A:G 19 12 3 LSi, AWS A5.9 ER316LSi, and GB/T 29713 S316LSi standards, ensuring compatibility with international specifications for stainless steel welding applications.
Application: Used to weld 19%13Ni2%Mo and similar stainless steels, like food and Beverage , Petrochemical plants, Pulp and Paper, other general fabrication on stainless steels.
Key Benefits
Low Carbon for Corrosion Resistance.
With carbon content at or below 0.03 percent, AK-ER316LSi reduces the formation of chromium carbides at grain boundaries, helping prevent intergranular corrosion in service.
High Silicon for Improved Fluidity.
Silicon content between 0.65 and 1.0 percent enhances weld pool fluidity, which supports stable arc performance and consistent bead formation during high-speed welding.
High Deposition Efficiency
The wire’s formulation delivers high deposition efficiency, reducing spatter and material waste, which improves productivity in continuous welding operations.
High Impact Toughness at Low Temperatures.
The deposited metal achieves impact values of at least 72 J at minus 40 degrees C, ensuring reliable performance in low-temperature environments.
Where It Is Used
- Welding of 19%13Ni2%Mo and similar stainless steels in industrial equipment.
- Fabrication and maintenance in food and beverage processing plants.
- Petrochemical plant construction and repair.
- Pulp and paper industry equipment fabrication.
- General stainless steel fabrication requiring high corrosion resistance and weldability.
Who It Is For
- Welding consumable distributors supplying stainless steel welding wires for industrial applications.
- Fabricators working with 19%13Ni2%Mo and similar stainless steels in demanding environments.
- Maintenance teams in petrochemical and food processing facilities requiring reliable, low-carbon filler metal.
Problems It Solves
- Intergranular corrosion in welded joints due to high carbon content in filler metal.
- Poor weld pool control and inconsistent bead profiles during high-speed welding.
- Need for multiple wire types to cover different stainless steel grades and service conditions.
Specifications
Published by the factory for AK-ER316LSi. 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 19 12 3 LSi AWS A5.9 ER316LSi GB/T 29713 S316LSi |
| Element | Content |
|---|---|
| C | ≤0.03 |
| Si | 0.65-1.0 |
| Mn | 1.0-2.5 |
| S | ≤0.03 |
| P | ≤0.03 |
| Ni | 11.0-14.5 |
| Mo | 2.0-3.0 |
| Cr | 18.0-20.0 |
| Cu | ≤0.75 |
| Property | Value |
|---|---|
| Tensile strength (MPa) | ≥510 |
| Elongation (%) | ≥25 |
| Impact values (J) | ≥72J/-40℃ |
Technical Features
- Super low carbon content (≤0.03 percent) to prevent sensitization.
- Silicon content between 0.65 and 1.0 percent for improved weld pool fluidity.
- Tensile strength of at least 510 MPa in the deposited metal.
- Elongation of at least 25 percent in the deposited metal.
- Impact toughness of at least 72 J at minus 40 degrees C.
- Compliant with EN ISO 14343-A:G 19 12 3 LSi, AWS A5.9 ER316LSi, and GB/T 29713 S316LSi standards.
Use Guide
- Select wire diameter based on joint thickness and welding position; ensure the welding machine is set to the recommended voltage and wire feed speed.
- Clean the base metal surface from oil, grease, rust, and scale before welding to avoid contamination and porosity.
- Use shielding gas as specified in the welding procedure—typically argon-rich mixtures for stainless steel GMAW.
- Maintain consistent travel speed and torch angle to achieve uniform bead profile and avoid undercut or burn-through.
How It Compares
AK-ER316LSi and standard ER316L both weld 19%13Ni2%Mo and similar stainless steels, but AK-ER316LSi has higher silicon content (0.65–1.0 percent) which improves weld pool fluidity and supports high-speed welding. Standard ER316L may have lower silicon and less optimized fluidity, making it less suitable for high-speed applications. For applications requiring maximum corrosion resistance in welded joints, the low carbon content of AK-ER316LSi is preferred over higher carbon alternatives.
Related Grades
Other welding wire in the same family.
AK-ER316LSi Questions
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