Exaton 22.9.3.LB

Exaton 22.9.3.LB is a chromium‑nickel‑molybdenum‑nitrogen covered stick electrode with a basic coating designed for welding 22‑23 %Cr duplex (austenitic‑ferritic) stainless steels such as SAF 2205.

Key Features

• Basic‑type coating provides good welding properties in all positions and high impact strength at low temperatures.
• High pitting corrosion resistance and resistance to stress corrosion cracking in chloride environments.
• Suitable for service temperatures up to 280 °C (536 °F) and impact‑tough applications below –40 °C.

Specifications

• Classification: EN ISO 3581‑A : E 22 9 3 N L B / SFA/AWS A5.4 : E2209‑15
• Approvals: BV E2209‑15, CE EN13479, DNV Duplex, UKCA EN13479
• Welding Current: DC+
• Ferrite Content: FN 35‑50
• Alloy Type: Duplex CrNiMoN
• Coating Type: Basic
• Tensile Yield Strength (As Welded, ISO): 670 MPa
• Tensile Strength (As Welded, ISO): 840 MPa
• Elongation (As Welded, ISO): 27 %
• Charpy Impact (As Welded, ISO): 110 J @ 20 °C, 80 J @ ‑46 °C, 67 J @ ‑60 °C
• Typical Weld Metal Chemistry (wt %): C 0.02, Mn 1, Si 0.6, S 0.003, P 0.017, Ni 9, Cr 23, Mo 3.2, Cu 0.1, N 0.18, PRE ≥ 35, FN 44
• Deposition Data (diameter × length, Amps, Volts, Efficiency, Fusion time, Deposition rate):
  • 2.5 × 300 mm: 55‑80 A, 24 V, 56 %, 49 s, 0.7 kg/h
  • 3.2 × 350 mm: 70‑115 A, 24 V, 60 %, 61 s, 1.2 kg/h
  • 4.0 × 350 mm: 90‑175 A, 25 V, 57 %, 62 s, 1.6 kg/h

Applications

• Welding of duplex and lean duplex stainless steels (ISO 1.4462, 1.4362, 1.4162, 1.4662, 1.4660, 1.4417).
• Heavy‑duty SAW (submerged arc welding) of stainless steel in corrosive or high‑temperature environments.
• Projects requiring high impact toughness below –40 °C.