About ER 316LSi Mig Wire

ER 316LSi MIG wire is a solid stainless steel filler metal tailored for welding austenitic stainless steels like 316L. It contains silicon for improved fluidity during welding, offering excellent corrosion resistance, high ductility, and good weldability. It finds applications in industries requiring robust and durable welds with superior corrosion resistance.

ER 316LSi Mig Wire Chemical Compositions:

The typical chemical composition of ER 316LSi MIG wire includes:

  • Carbon (C): 0.03% max
  • Silicon (Si): 0.65-1.00%
  • Manganese (Mn): 1.0-2.5%
  • Phosphorus (P): 0.03% max
  • Sulphur (S): 0.03% max
  • Chromium (Cr): 16.0-18.0%
  • Nickel (Ni): 11.0-14.0%
  • Molybdenum (Mo): 2.0-3.0%

These elements contribute to its weldability and corrosion resistance, essential for welding applications.

ER 316LSi Mig Wire Physical Properties:

  • Density: Generally around 7.9 g/cm³, indicating mass per unit volume.
  • Melting Point: Typically between 1400-1450°C (2552-2642°F), transitioning from solid to liquid.
  • Electrical Conductivity: Moderate, suitable for welding applications.
  • Thermal Conductivity: High, aiding efficient heat transfer during welding.
  • Ductility: Exhibits good ductility, allowing flexibility in welding applications.
  • Magnetic Properties: Typically non-magnetic in annealed condition, reducing interference.
  • Corrosion Resistance: Offers excellent resistance to corrosion, vital for maintaining weld integrity.

ER 316LSi Mig Wire Mechanical Properties:

  • Tensile Strength: Typically ranges from 485 to 655 MPa, indicating maximum load capacity before breaking.
  • Yield Strength: Typically around 170 to 310 MPa, representing the stress level for permanent deformation onset.
  • Elongation: Usually between 35% to 45%, showing the ability to stretch without breaking.
  • Hardness: Varies based 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 316LSi Mig Wire Applications:

  • Food and Beverage Industry: Welding equipment and machinery due to corrosion resistance and cleanliness.
  • Pharmaceutical Industry: Fabricating stainless steel components for pharmaceutical manufacturing equipment.
  • Chemical Processing: Welding equipment and pipelines in chemical plants due to corrosion resistance.
  • Marine Industry: Welding marine-grade stainless steel components due to corrosion resistance.
  • Aerospace: Used in aerospace applications where corrosion resistance and high strength are required.
  • Medical Equipment: Fabricating medical instruments and devices requiring corrosion resistance and biocompatibility.
  • Automotive Industry: Welding stainless steel parts in automotive manufacturing, including exhaust systems and fuel tanks