OK 73.79

OK 73.79 is a nickel‑alloyed basic AC/DC low‑hydrogen stick electrode designed for MMA welding of 3.5 % Ni steels with impact requirements down to –101 °C, ideal for LPG tanks, chemical plants and similar applications.

Key Features

• Basic covering low‑hydrogen electrode (E8016‑C2 / E 46 6 3 Ni B 12 H5)
• VacPac™ hermetically sealed, vacuum‑packed packaging for moisture‑free use straight from the pack
• Suitable for AC and DC+‑ welding currents
• Excellent low‑temperature impact performance (35 J at –101 °C)

Specifications

• Welding Current: AC, DC+
• Diffusible Hydrogen: < 5.0 ml/100 g
• Alloy Type: Low alloyed (3.5 % Ni)
• Coating Type: Basic covering
• Min AC OCV: 65 V
• Classifications: SFA/AWS A5.5 : E8016‑C2, EN ISO 2560‑A : E 46 6 3 Ni B 12 H5
• Approvals: DNV‑GL : 5 Y46H5, RS : 5Y46 H5
• Deposition Data (example 4.0 mm): 90‑190 A, 27 V, 63 % efficiency, 88 s fusion time, 1.8 kg/h

Applications

• Welding of 3.5 % Ni steels for LPG tanks and ethane service
• Chemical plant equipment requiring low‑temperature impact toughness
• Projects needing reliable low‑hydrogen, moisture‑free electrodes