OK Femax 38.65

High‑recovery zircon‑basic stick electrode designed for butt and fillet welds in the flat position on carbon, carbon‑manganese and fine‑grained manganese steels with elevated yield strength. Good slag removal and consistent mechanical properties.

Key Features

• Zircon‑basic coating for high recovery and low moisture uptake
• Suitable for flat position welding of high‑strength carbon and manganese steels
• Excellent slag removal and easy strike
• Low diffusible hydrogen (< 5 ml/100 g)

Specifications

• Classifications: SFA/AWS A5.1 : E7028, EN ISO 2560‑A : E 42 4 B 73 H5
• Approvals: ABS, BV, CE, DNV‑GL, LR, PRS, VdTÜV (see details)
• Welding Current: AC, DC+
• Min AC Open‑Circuit Voltage: 65 V
• Alloy Type: Carbon Manganese
• Coating Type: Basic covering
• Deposition Data (4 mm × 450 mm): 170‑240 A, 36 V, 68 % efficiency, 3.7 kg/h
• Deposition Data (5 mm × 450 mm): 225‑355 A, 40 V, 69 % efficiency, 5.7 kg/h
• Tensile Yield Strength (As Welded): 440 MPa
• Tensile Strength (As Welded): 550 MPa
• Elongation (As Welded): 28 %
• Charpy Impact (As Welded, –20 °C): 100 J
• Charpy Impact (As Welded, –40 °C): 85 J

Applications

• Flat‑position butt and fillet welding of carbon and manganese steels
• Structural steel fabrication with elevated yield strength requirements
• Projects requiring low hydrogen and high‑quality welds