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ER347 is used for welding AISI types 304, 304L, 321 and 347 where maximum corrosion resistance is required. ER347 contains columbium which acts as a stabilizer against carbide precipitation thereby eliminating intergranular corrosion.

  • AWS Specification: AWS A5.9 ER347
  • Weight: 25 lb
  • Wire Diameter: 0.023 in.
  • Alloy Type: ER347
  • Yield Strength: 59,000 psi
  • Tensile Strength: 91,000 psi
  • Elongation: 42%
  • Typical Composition - Carbon: 0.04%
  • Typical Composition - Manganese: 1.64%
  • Typical Composition - Silicon: 0.40%
  • Typical Composition - Sulfur: 0.01%
  • Typical Composition - Chromium: 20.20%
  • Typical Composition - Nickel: 9.85%
  • Typical Composition - Copper: 0.14%
  • Typical Composition - Molybdenum: 0.20%
  • Typical Composition - Phosphorus: 0.003%
  • Typical Composition - Columbium + Tantalum: 0.86%
  • Stabilizer: Columbium
  • Corrosion Resistance: Maximum
  • Temperature Range: Up to 1400 F
  • Compliance: ANSI/AWS A5.9 ER347, ASME SFA 5.9 ER347

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