OK Tigrod 13.17

OK Tigrod 13.17 is a copper‑coated, low‑alloyed chromium‑molybdenum solid welding wire designed for GTAW of creep‑resistant steels such as SA‑387 Grade 22 and A335 Grade P22.

Key Features

• Low‑alloy steel (2.5% Cr, 1.1% Mo) with copper coating for smooth feed
• High purity with guaranteed Bruscato factor (X‑bar < 15)
• Suitable for welding and subsequent stress‑relieving heat treatment (600‑700 °C)
• Certified to EN ISO 21952 and AWS A5.28 standards

Specifications

• Alloy Type: Low alloyed steel (2.5% Cr, 1% Mo)
• Shielding Gas: I1 (EN ISO 14175)
• Classifications: EN ISO 21952‑A Z CrMo2Si, EN ISO 21952‑B W 62 2C1M, SFA/AWS A5.28 ER90S‑B3
• Approvals: CE EN 13479, UKCA EN 13479
• Tensile (PWHT 1 h @ 690 °C): Yield 570 MPa, Tensile 690 MPa, Elongation 27 %
• Charpy Impact (PWHT 1 h @ 690 °C, -40 °C): 150 J
• Typical Weld Metal Analysis (%): C 0.08, Mn 0.5, Si 0.5, S 0.005, P 0.008, Cr 2.4, Mo 1.0, Cu 0.15
• Typical Wire Composition (%): C 0.08, Mn 0.5, Si 0.5, Ni 0.05, Cr 2.4, Mo 1.0

Applications

• GTAW of creep‑resistant boiler and pressure vessel steels
• Projects requiring post‑weld heat treatment for stress relief
• High‑strength steel fabrication in power generation and petrochemical sectors