About 409Ti Core Wire

409Ti core wire is a welding electrode with a core composed of 409Ti alloy. Known for its high-temperature resistance and corrosion properties, it’s primarily used in automotive exhaust systems, chemical processing equipment, power generation, and aerospace applications, offering durability and reliability in demanding environments.

409Ti Core Wire Chemical Compositions:

The chemical composition of 409Ti core wire typically includes:

  • Titanium (Ti): 0.8-1.1%
  • Carbon (C): 0.03% max
  • Manganese (Mn): 1.00% max
  • Silicon (Si): 1.00% max
  • Phosphorus (P): 0.04% max
  • Sulfur (S): 0.03% max
  • Chromium (Cr): 10.5-12.5%
  • Nickel (Ni): 0.5-1.0%
  • Nitrogen (N): 0.03% max
  • Niobium (Nb): 0.60-0.85%
  • Iron (Fe): Balance

409Ti Core Wire Physical Properties:

The physical properties of 409Ti core wire include:

  1. Density: Typically around 7.7 g/cm³ due to titanium, chromium, and iron.
  2. Melting Point: Above 1450°C due to high-chromium content.
  3. Tensile Strength: Ranges between 380-480 MPa due to alloying elements.
  4. Hardness: Generally 150-200 HV influenced by chromium, nickel, and carbon.
  5. Thermal Conductivity: Approximately 25-30 W/m·K influenced by alloy composition.

409Ti Core Wire Mechanical Properties:

The mechanical properties of 409Ti core wire include:

  1. Yield Strength: Typically 220-280 MPa, influenced by titanium, chromium, and nickel.
  2. Ultimate Tensile Strength: Generally 380-480 MPa due to alloying elements.
  3. Elongation: About 20-30%, indicating ductility, influenced by carbon, manganese, and silicon.
  4. Hardness: Typically 150-200 HV, influenced by alloy composition.
  5. Impact Toughness: Generally good, owing to balanced composition.

409Ti Core Wire Applications:

  1. Automotive: Used for welding exhaust systems, mufflers, and catalytic converters due to its high-temperature resistance and corrosion properties.
  2. Chemical Processing: Ideal for welding chemical processing equipment, reactors, and vessels, where resistance to corrosive environments is crucial.
  3. Power Generation: Employed in the fabrication of boilers, heat exchangers, and combustion chambers for power plants due to its heat-resistant properties.
  4. Oil and Gas: Used in welding pipelines, refinery equipment, and offshore platforms where corrosion resistance and durability are essential.
  5. Aerospace: Applied in the fabrication of aircraft components, particularly those exposed to high temperatures and aggressive environments.
  6. General Fabrication: Utilized in various fabrication projects requiring welds resistant to high temperatures, corrosion, and oxidation.