About ER 316Si Tig Wire

ER 316Si TIG wire is a stainless steel filler metal with added silicon for improved weldability. It offers excellent corrosion resistance and is suitable for welding 316 and 316L stainless steels, providing strong, durable welds in applications across various industries, including marine, chemical, and food processing.

ER 316Si Tig Wire Chemical Compositions:

The chemical composition of ER 316Si TIG wire typically includes:-

  1. Carbon (C): ≤ 0.08% – Minimizes carbide precipitation, enhancing corrosion resistance.
  2. Chromium (Cr):0-18.0% – Provides resistance to oxidation and corrosion.
  3. Nickel (Ni):0-14.0% – Enhances corrosion resistance and strength.
  4. Silicon (Si):65-1.00% – Improves weldability and fluidity of the weld pool.
  5. Molybdenum (Mo):0-3.0% – Increases corrosion resistance, particularly against chlorides.
  6. Manganese (Mn): ≤ 2.0% – Aids in deoxidation and enhances mechanical properties.
  7. Phosphorus (P): ≤ 0.045% – Controls the formation of brittle phosphide compounds.
  8. Sulfur (S): ≤ 0.03% – Minimizes the occurrence of sulfur-induced hot cracking.
  9. Iron (Fe): Balance – Main component providing structural integrity and stability to the alloy.

These chemical compositions contribute to the wire’s ability to produce strong, corrosion-resistant welds suitable for various applications.

ER 316Si Tig Wire Physical Properties:

  1. Density: Similar to other stainless steels, approximately 7.9 g/cm³, indicating its mass per unit volume.
  2. Melting Point: Typically in the range of 2550-2650°F (1400-1450°C), the temperature at which the wire transforms from solid to liquid state.
  3. Tensile Strength: Typically above 70,000 psi, indicating its resistance to pulling forces, ensuring strong welds.
  4. Yield Strength: Usually higher than 25,000 psi, the stress at which the material begins to deform plastically.
  5. Elongation: Ductile, with 40-50% elongation in 2 inches, indicating its ability to stretch before breaking.
  6. Hardness: Offers good resistance to surface wear, usually within 160-190 HB (Brinell Hardness), ensuring durability.

These physical properties collectively determine the wire’s suitability for welding applications, ensuring reliable and durable welds.

ER 316Si Tig Wire Mechanical Properties:

  1. Tensile Strength:
    • Typically above 70,000 psi.
    • Measures the wire’s ability to withstand stretching forces without breaking.
  2. Yield Strength:
    • Usually higher than 25,000 psi.
    • Indicates the stress at which the wire begins to deform plastically.
  3. Elongation:
    • Ductile with 40-50% elongation in 2 inches.
    • Shows the wire’s ability to stretch before breaking.
  4. Hardness:
    • Typically within 160-190 HB (Brinell Hardness).
    • Reflects the wire’s resistance to surface wear and abrasion.
  5. Flexibility:
    • Demonstrates the wire’s ability to bend without breaking, crucial for intricate welding operations.
  6. Impact Resistance:
    • Measures the wire’s ability to absorb energy without fracturing when subjected to sudden forces.
  7. Fatigue Resistance:
    • Indicates the wire’s ability to withstand repeated loading and unloading cycles without failure.

These mechanical properties ensure ER 316Si Tig wire produces strong, durable welds, crucial for various applications.

These mechanical attributes ensure reliable and durable welds in various applications.

ER 316Si Tig Wire Applications:

  1. Chemical Industry:
    • Welding tanks, piping, and equipment handling corrosive substances.
  2. Food Processing:
    • Fabricating equipment for hygiene-sensitive environments.
  3. Marine Industry:
    • Welding ship components and offshore structures.
  4. Aerospace:
    • Fabricating components requiring corrosion resistance.
  5. Automotive:
    • Used in exhaust systems and structural components.
  6. Construction:
    • Welding stainless steel structures.
  7. Pharmaceutical Industry:
    • Welding sanitary equipment.

ER 316Si Tig wire’s corrosion resistance and enhanced weldability make it ideal for various industries requiring strong, durable welds.