Exaton 25.10.4.LR

Exaton 25.10.4.LR is a covered rutile‑basic stick electrode designed for welding super‑duplex stainless steels (UNS S32750, S32760, SAF 2507, Zeron 100) with excellent corrosion and stress‑cracking resistance.

Key Features

• Rutile‑basic coating delivers stable arc, low spatter and easy slag removal.
• Fast burn‑off rate with minimal stub loss.
• High resistance to stress corrosion cracking, pitting, erosion and fatigue.
• Suitable for dissimilar welding of duplex to carbon/low‑alloy steels.

Specifications

• Welding Current: DC+, AC
• Ferrite Content (FN): 35‑65
• Alloy Type: Austenitic‑Ferritic CrNiMo
• Coating Type: Rutile Basic
• Min AC Open Circuit Voltage: 60 V
• Yield Strength: 730 MPa (as‑welded)
• Tensile Strength: 900 MPa (as‑welded)
• Elongation: 25 % (as‑welded)
• Impact Values: 70 J @ 20 °C, 45 J @ –40 °C (as‑welded)
• Typical Weld Metal Chemistry (%): C 0.03, Mn 1, Si 0.5, S 0.004, P 0.022, Ni 9.5, Cr 25, Mo 4, Cu 0.09, N 0.25, FN 45, PREN ≥42
• Deposition Data (example): 2.5 × 300 mm – 55‑85 A, 22 V, 65 % efficiency, 0.9 kg/h

Applications

• Welding of super‑duplex stainless steels (e.g., SAF 2507, UNS S32750, UNS J93404).
• Duplex to carbon or low‑alloy steel joints.
• Environments requiring high corrosion and erosion resistance.