ESAB OK Autrod 309LSi Stainless Steel MIG Wire
ESAB OK Autrod 309LSi is a high-quality stainless steel MIG wire designed for welding dissimilar joints and buffer layers on carbon-manganese steels and stainless steels. Classified as ER309LSi under AWS standards, this wire is ideal for welding wrought and cast steels of the 23% Cr – 12% Ni type. The higher silicon content in OK Autrod 309LSi improves wetting properties, allowing for smoother welds with excellent fluidity in the weld pool.
This wire offers outstanding corrosion resistance and is suitable for applications in harsh environments. It is commonly used in industries such as petrochemical, shipbuilding, and general fabrication where dissimilar metals or buffer layers are required. With its low carbon content, it provides enhanced protection against intergranular corrosion, therefore making it suitable for high-performance, long-term welding applications.
Key Features of ESAB OK Autrod 309LSi
- Welding of Dissimilar Joints: Ideal for welding stainless to carbon steels and creating buffer layers on CMn steels.
- Improved Wetting: Enhanced silicon content provides better weld pool fluidity, resulting in smooth, high-quality welds.
- Corrosion Resistance: Offers excellent protection against general corrosion and intergranular corrosion.
- Crack Resistance: The higher chromium and nickel content ensures crack resistance, thus making it ideal for challenging welds.
- Versatile Shielding Gas Options: Operates with both M12 and M13 shielding gases, ensuring compatibility with various welding setups.
Applications
- Dissimilar Metal Welding: Perfect for welding stainless steels to carbon or low-alloy steels in industrial settings.
- Buffer Layers: Used for creating buffer layers to control dilution when welding dissimilar materials.
- Petrochemical Industry: Suitable for welding in environments exposed to corrosive chemicals and high temperatures.
- Shipbuilding: Provides reliable, corrosion-resistant welds for marine environments and structural components.
Specifications
| Feature | Details |
|---|---|
| Classifications | AWS A5.9: ER309LSi, EN ISO 14343-A: G 23 12 L Si |
| Alloy Type | 23% Cr, 12% Ni, Low Carbon |
| Tensile Strength (As Welded) | 600 MPa |
| Yield Strength (As Welded) | 440 MPa |
| Elongation | 35% |
| Typical Composition | 0.016% C, 1.9% Mn, 0.7% Si, 13.7% Ni, 23.3% Cr |
| Shielding Gas | M12 (Ar/CO2 mix), M13 (100% CO2) |
For high-quality welding of **dissimilar joints** and **buffer layers**, choose ESAB OK Autrod 309LSi. Its superior wetting properties, corrosion resistance, and crack resistance make it ideal for demanding industrial applications.
Reference: Manufacturer’s Page
Check out other ESAB products that we carry, please click here.
