Exaton 19.9.NbR

Exaton 19.9.NbR is a niobium‑stabilized chromium‑nickel covered electrode with a rutile coating, designed for SAW welding of stainless steels (ASTM 321, 347) and super‑alloys up to 400 °C.

Key Features

• Niobium‑stabilized alloy for excellent corrosion resistance
• Rutile coating provides arc stability, low spatter and fast burn‑off
• High moisture resistance and good slag detachability
• Works in all standard weld positions with smooth, uniform beads

Specifications

• Classifications: EN ISO 3581‑A E 19 9 Nb R 1 2, SFA/AWS A5.4 E347‑17, Werkstoffnummer 1.4551
• Approvals: CE EN 13479
• Welding Current: DC+, AC
• Ferrite Content: FN 6‑9
• Alloy Type: Austenitic CrNi
• Coating Type: Acid Rutile
• Minimum AC Open‑Circuit Voltage: 50 V
• Tensile Strength (As Welded): 620 MPa, Yield Strength: 490 MPa, Elongation: 35 %
• Charpy Impact (As Welded): 55 J @ 20 °C, 50 J @ –20 °C, 35 J @ –60 °C
• Typical Weld Metal Chemistry (wt%): C 0.03, Mn 0.8, Si 0.7, S 0.010, P 0.022, Ni 10, Cr 20, Mo 0.07, Cu 0.07, Nb 0.29
• Deposition Data (e.g., 3.2 × 350 mm): 70‑130 A, 28 V, 56 % efficiency, 53 s fusion time, 1.4 kg/h

Applications

• SAW welding of stainless steel and nickel alloys in heavy‑duty environments
• Structural components requiring corrosion resistance up to 400 °C
• Ferritic and martensitic steel welding where weld‑metal match is not critical