About ER 308Lsi Tig Wire

ER 308LSi TIG wire is a stainless steel filler metal with added silicon for improved weld puddle fluidity. It offers excellent corrosion resistance and is suitable for welding austenitic stainless steels like 304L. Ideal for applications requiring precise, clean welds in industries such as food processing and pharmaceuticals.

ER 308Lsi Tig Wire Chemical Compositions:

The chemical composition of ER 308LSi TIG wire typically includes:

  • Carbon (C): ≤ 0.03%
  • Manganese (Mn): 1.00-2.50%
  • Silicon (Si): 0.65-1.00%
  • Chromium (Cr): 19.50-22.00%
  • Nickel (Ni): 9.00-11.00%
  • Phosphorus (P): ≤ 0.03%
  • Sulfur (S): ≤ 0.03%
  • Iron (Fe): Balance

ER 308Lsi Tig Wire Physical Properties:

The physical properties of ER 308LSi TIG wire include:

  1. Density: Typically around 7.9 g/cm³, contributing to its strength and durability.
  2. Melting Point: Approximately 1400°C (2552°F), ensuring stability in high-temperature applications.
  3. Tensile Strength: Generally 600-700 MPa, indicating its ability to withstand stress.
  4. Yield Strength: Typically around 300 MPa, measuring its deformation under stress.
  5. Elongation: Roughly 30-35%, reflecting its ductility.
  6. Electrical Resistivity: Approximately 0.72 µΩ·m, affecting its conductivity.
  7. Thermal Conductivity: About 16.3 W/m·K, ensuring efficient heat distribution during welding.

ER 308Lsi Tig Wire Mechanical Properties:

The mechanical properties of ER 308LSi TIG wire include:

  1. Tensile Strength: Typically 600-700 MPa, indicating its ability to withstand tension.
  2. Yield Strength: Around 300 MPa, signifying its resistance to deformation under stress.
  3. Elongation: Typically 30-35%, showing its ductility and ability to stretch before breaking.
  4. Hardness: Vickers Hardness ranges from 160-190 HV, indicating its resistance to indentation and wear.
  5. Impact Strength: Exhibits good toughness, important for withstanding sudden loads.
  6. Fatigue Strength: Resistant to cyclic loading, crucial for durability in dynamic applications.
  7. Corrosion Resistance: Excellent due to its stainless steel composition, suitable for corrosive environments.

ER 308Lsi Tig Wire Applications:

ER 308LSi TIG wire finds applications in various industries, including:

  1. Food and Beverage: Used for welding equipment requiring corrosion resistance, such as processing tanks and piping.
  2. Pharmaceutical: Ideal for fabricating sanitary equipment due to its clean and inert welds.
  3. Chemical Processing: Suitable for welding components exposed to corrosive chemicals.
  4. Automotive: Used in exhaust systems and other parts requiring high corrosion resistance.
  5. Petrochemical: Applied in the fabrication of pipes, tanks, and vessels for handling corrosive substances.
  6. Power Generation: Used for welding components in boilers and heat exchangers.
  7. Architectural: Utilized in structural components and decorative features due to its aesthetic appeal and durability.