Domestic Market
Superon 308Si / 308LSi is a stainless steel welding wire designed for joining austenitic stainless steels commonly used in fabrication and industrial manufacturing. This product is suitable for welding stainless steel grades such as 301, 302, 304, 304L, 308, and 308L. With its extra low carbon composition and controlled silicon content, 308Si / 308LSi supports smooth weld bead formation and reliable corrosion resistance. The ER308LSi grade is widely preferred for pipe work, plate fabrication, and vessel manufacturing, where weld quality and durability are important.
Key Features and Benefits
308Si / 308LSi offers consistent performance across a wide range of stainless steel welding applications.
- Extra low-carbon weld metal Reduces the risk of intergranular corrosion in welded joints.
- Smooth and stable weld bead Silicon content improves bead appearance and wetting during welding.
- Good corrosion resistance Weld metal resists intergranular attack from many liquid media.
- Strong mechanical properties Maintains good strength and elongation after welding.
- Wide material compatibility Suitable for welding common 18 chromium and 8 nickel stainless steels.
- Reliable arc stability Provides steady arc performance in both MIG and TIG welding processes.
These benefits make ER308LSi suitable for both production welding and fabrication work.
Specifications
The table below outlines the key mechanical properties and welding conditions for 308Si / 308LSi.
|
Product Name |
AWS SFA Classification |
Yield Strength N mm² |
Tensile Strength N mm² |
Elongation A5 |
Impact Energy ISO V at 20 C |
Welding Conditions |
|---|---|---|---|---|---|---|
|
SUPERMIG 308LSi |
ER 308LSi |
≥ 350 |
≥ 520 |
≥ 35 percent |
≥ 60 |
DC Positive |
|
SUPERTIG 308LSi |
ER 308LSi |
≥ 350 |
≥ 520 |
≥ 35 percent |
≥ 60 |
DC Positive |
Properties
308Si / 308LSi welding consumables are widely used in stainless steel fabrication where corrosion resistance, weld quality, and appearance are important.
- Austenitic Stainless Steel Weld Metal – Suitable for welding 304 and 304L stainless steels, offering stable and reliable welds.
- Good Corrosion Resistance – Performs well in mild to moderate corrosive environments, making it suitable for general industrial and fabrication use.
- Low Carbon Content (308LSi) – Helps reduce the risk of intergranular corrosion after welding, especially in welded joints exposed to moisture.
- Enhanced Silicon Content – Improves weld pool fluidity, resulting in smooth bead shape and clean weld appearance.
- Excellent Weld Appearance – Produces uniform, bright weld beads with good wetting, reducing the need for post-weld finishing.
- Good Mechanical Strength – Provides adequate tensile strength and ductility to handle service stresses and thermal expansion.
- Stable Arc and Easy Weldability – Ensures smooth wire feeding, low spatter, and consistent performance in both MIG and TIG welding processes.
The ER308LSi welding wire supports reliable performance in both shop fabrication and site welding applications.
Related Products
We offer a range of complementary stainless steel welding consumables to meet different fabrication, repair, and maintenance requirements.
- 308 and 308L Stainless Steel Welding Wires – Suitable for welding 304 and 304L stainless steels, providing good corrosion resistance and smooth weld finish.
- 309 and 309LSi Welding Consumables – Commonly used for dissimilar metal welding and buffer layers, offering strong welds with good crack resistance.
- 316 and 316LSi Stainless Steel Wires – Designed for applications requiring higher corrosion resistance, especially in chemical and marine environments.
- 347 Series Stainless Steel Welding Wires – Ideal for high-temperature service where resistance to intergranular corrosion is important, ensuring long-term weld reliability.
