OK 76.98

OK 76.98 is a low‑hydrogen stick electrode designed for welding modified 9 Cr steels such as T91/P91. It is suitable for all‑positional welding of pipes and plates.

Key Features

• Low‑hydrogen, low‑alloy electrode (9 % Cr, 1 % Mo + Ni/V/Nb)
• Vacuum‑packed VacPac™ packaging delivers dry, ready‑to‑use electrodes
• Suitable for DC+ welding current
• Certified to CE, UKCA and VdTÜV standards

Specifications

• Classifications: SFA/AWS A5.5 : E9015‑B91, EN ISO 3580‑A : E CrMo91 B 4 2 H5
• Approvals: CE EN 13479, UKCA EN 13479, VdTÜV 07687
• Diffusible Hydrogen: < 5.0 ml/100 g
• Coating Type: Basic covering
• Welding Current: DC+
• Typical Weld Metal Analysis (%): C 0.1, Mn 0.8, Si 0.35, Ni 0.7, Cr 9, Mo 1, V 0.24, Nb 0.06

Applications

• All‑position welding of modified 9 Cr steels (e.g., T91, P91)
• Pipe and plate fabrication
• High‑temperature and pressure service components