OK Tigrod 55

OK Tigrod 55 is a copper‑coated, low‑alloyed chromium‑nickel‑molybdenum filler rod designed for GTAW of high‑strength steels (minimum tensile strength 690 MPa) and applications requiring good impact strength at low temperatures.

Key Features

• Low‑alloyed steel composition (0.5 % Cr, 0.5 % Ni, 0.2 % Mo)
• Copper coating for improved arc stability
• Suitable for high‑strength steels and low‑temperature impact applications
• Available in multiple diameters and lengths (e.g., 2.0 mm × 1000 mm, 2.4 mm × 500 mm)

Specifications

• Alloy Type: Low alloyed steel (0.5 % Cr – 0.5 % Ni – 0.2 % Mo)
• Shielding Gas: I1 (EN ISO 14175)
• Classifications: EN ISO 16834‑A : W 55 4 Mn3NiCrMo, EN ISO 16834‑A : Mn3NiCrMo, SFA/AWS A5.28 : ER100S‑G
• Approvals: CE : EN 13479, UKCA : EN 13479
• Tensile Strength (As Welded, Ar (I1) AWS): 713 MPa
• Yield Strength (As Welded, Ar (I1) AWS): 636 MPa
• Elongation (As Welded, Ar (I1) AWS): 16 %
• Charpy Impact (As Welded, -30 °C, Ar (I1) AWS): 120 J

Applications

• GTAW of high‑strength structural steels
• Welding where low‑temperature impact toughness is required
• Fabrication of pressure vessels and heavy‑duty equipment