OK 63.20

OK 63.20 is a rutile‑coated stick electrode designed for welding 18Cr12Ni3Mo stainless steels and similar stabilized grades. It excels on thin‑walled pipes and can be used in all positions, including vertical‑down.

Key Features

• Rutile (acid) coating for easy arc stability and smooth slag removal.
• Suitable for 1.6 mm to 3.2 mm diameters.
• Vacuum‑packed VacPac packaging protects against moisture.
• Works with DC+ and AC power sources.
• Offers good deposition rates (0.3 – 1.2 kg/h) across size range.

Specifications

• Welding Current: DC+, AC
• Ferrite Content: FN 3‑10
• Alloy Type: Austenitic CrNiMo
• Coating Type: Acid Rutile
• Minimum AC Open Circuit Voltage: 50 V
• Diameters: 1.6 mm, 2.0 mm, 2.5 mm, 3.2 mm (lengths 300 mm–350 mm)
• Typical Amps/Volts: 15‑40 A / 23 V (1.6 mm) up to 55‑110 A / 26 V (3.2 mm)
• Deposition Efficiency: 60‑63 %

Applications

• Welding of thin‑walled stainless steel pipes.
• General stainless steel fabrication (18Cr12Ni3Mo, stabilized grades).
• All welding positions, including vertical‑down.
• Situations requiring flexibility where SMAW is preferred over MIG or FCAW.