OK Tigrod 13.37

OK Tigrod 13.37 is a copper‑coated, low‑alloy chromium‑molybdenum (9 % Cr, 1 % Mo) TIG rod designed for GTAW of high‑temperature steels and steels used in hot hydrogen service, especially in oil refineries.

Key Features

• Copper coating for improved arc stability and wetting.
• Low‑alloyed Cr‑Mo composition (ER505) providing high strength at elevated temperatures.
• Available in 1.6 mm, 2.0 mm and 2.4 mm diameters.
• Certified to EN ISO 21952 and AWS A5.28 standards.

Specifications

• Alloy Type: Alloyed steel (9 % Cr – 1 % Mo) – ER505
• Shielding Gas: I1 (EN ISO 14175)
• Wire Diameter: 1.6 mm, 2.0 mm, 2.4 mm
• Amperage Range: 60‑200 A (1.6 mm), 100‑220 A (2.0 mm & 2.4 mm)
• Tensile Strength: up to 660 MPa depending on heat treatment
• Yield Strength: up to 560 MPa depending on heat treatment
• Elongation: 17‑26 %
• Charpy Impact: up to 150 J at –20 °C
• Typical Chemical Composition: 0.1 % C, 0.5 % Mn, 0.4 % Si, 0.005 % S, 0.01 % P, 8.6 % Cr, 0.9 % Mo

Applications

• GTAW of high‑temperature structural steels.
• Welding steels for hot hydrogen service.
• Oil refinery boiler and pressure vessel fabrication.
• Any application requiring superior strength and toughness at elevated temperatures.