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ER309LSi has a higher level of silicon than ER309L combined with a carbon content lower than ER309. The increased silicon level provides better arc stability and a smoother bead appearance while an average 02% carbon level reduces carbide precipitation. Typical applicationswould include those of ER309 and ER309L.

  • Material: ER309L-Si Stainless Steel
  • Size: 3/32 in.
  • Length: 36 in
  • Weight: 10 lb
  • Carbon Content: 0.02%
  • Silicon Content: 0.84%
  • Manganese Content: 2.03%
  • Chromium Content: 23.48%
  • Nickel Content: 13.45%
  • Molybdenum Content: 0.22%
  • Tensile Strength: 87,200 psi
  • Yield Strength: 58,000 psi
  • Elongation: 42%
  • Charpy V-notch Impact: 94 ft lbs at 70 F
  • Specification Standards: ANSI/AWS A5.9 ER309LSi, ASME SFA 5.9 ER309LSi

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