OK 75.75

OK 75.75 is a low‑moisture LMA stick electrode designed for welding high‑strength, low‑alloy steels at room temperature or with moderate pre‑heating.

Key Features

• Low moisture content for consistent performance
• VacPac™ hermetically sealed packaging – ready to use straight from the pack
• Basic covering suitable for DC+ welding currents
• Certified to SFA/AWS A5.5 and EN ISO 18275 standards

Specifications

• Classification: SFA/AWS A5.5 : E11018‑G, EN ISO 18275‑A : E 69 4 Mn2NiCrMo B 42 H5
• Approvals: ABS, CE (EN 13479), DB, VdTÜV
• Welding Current: DC+
• Diffusible Hydrogen: < 5.0 ml/100 g
• Alloy Type: Low alloyed (2.4 % Ni, 0.4 % Cr, 0.4 % Mo)
• Coating Type: Basic covering
• Tensile Yield Strength (As Welded, ISO): 780 MPa
• Tensile Strength (As Welded, ISO): 830 MPa
• Elongation (As Welded, ISO): 20 %
• Charpy Impact (As Welded, ISO, –40 °C): 60 J
• Typical Weld Metal Composition: C 0.05 %, Mn 1.61 %, Si 0.36 %, Ni 2.4 %, Cr 0.4 %, Mo 0.4 %
• Deposition Data (example 4.0 × 450 mm): 135‑200 A, 24 V, 65 % efficiency, 92 s fusion time, 1.9 kg/h

Applications

• Welding of high‑strength low‑alloy structural steels
• Fabrication and repair work requiring consistent mechanical properties
• Situations where moisture control of electrodes is critical