About ER 308LSi Mig Wire

ER 308LSi MIG wire is a solid stainless steel filler metal designed for welding austenitic stainless steels like 304 and 308L. It contains silicon for improved fluidity and weld bead appearance, offering excellent corrosion resistance, weldability, and high ductility, ensuring strong and durable welds in various applications.

ER 308LSi Mig Wire Chemical Compositions:

The chemical composition of ER 308LSi MIG wire comprises:

  • Carbon (C): 0.03% max
  • Silicon (Si): 0.65-1.00%
  • Manganese (Mn): 1.0-2.5%
  • Phosphorus (P): 0.03% max
  • Sulfur (S): 0.03% max
  • Chromium (Cr): 18.0-21.0%
  • Nickel (Ni): 9.0-11.0%

These elements contribute to its weldability and corrosion resistance, with silicon enhancing fluidity during welding.

ER 308LSi Mig Wire Physical Properties:

  • Density: Typically around 7.9 g/cm³, providing insight into mass per unit volume.
  • Melting Point: Approximately 1400-1450°C (2552-2642°F), indicating solid to liquid transition temperature.
  • Electrical Conductivity: High, facilitating efficient welding processes.
  • Thermal Conductivity: Moderate, ensuring effective heat transfer during welding.
  • Ductility: Exhibits good ductility, allowing for flexibility in welding applications.
  • Magnetic Properties: Typically non-magnetic in the annealed condition, minimizing interference.
  • Corrosion Resistance: Offers excellent resistance to corrosion, maintaining weld integrity in various environments.

ER 308LSi Mig Wire Mechanical Properties:

  • Tensile Strength: Typically ranging from 580 to 680 MPa, indicating maximum load capacity before breaking.
  • Yield Strength: Typically around 380 to 420 MPa, representing the stress level for permanent deformation onset.
  • Elongation: Typically 35% to 45%, demonstrating the ability to stretch without breaking.
  • Hardness: Varies depending on welding conditions and heat treatment.
  • Impact Toughness: Reflects the ability to absorb energy during impact without fracturing.
  • Fatigue Strength: Indicates resistance to failure under repeated loading.
  • Microstructure: Typically austenitic, contributing to corrosion resistance and mechanical properties.

ER 308LSi Mig Wire Applications:

  • Food and Beverage Industry: Utilized for welding equipment and machinery due to its low carbon content and corrosion resistance.
  • Chemical Processing Plants: Ideal for fabricating equipment and piping systems requiring corrosion resistance.
  • Pharmaceutical Industry: Applied in welding components in pharmaceutical manufacturing equipment due to cleanliness requirements.
  • Aerospace Industry: Utilized in the fabrication of aircraft components due to its high strength and corrosion resistance.
  • Automotive Industry: Used for welding stainless steel parts in automotive manufacturing, including exhaust systems and body panels.
  • Power Generation: Suitable for welding components in power plants where corrosion resistance is essential.
  • General Fabrication: Widely used across industries for welding stainless steel components requiring strong and durable welds.