TIG Rods ESAB OK Tigrod 12.64

TIG Rods ESAB OK Tigrod 12.64

General Application

• Universally applicable for root and joint welding on unalloyed and low-alloy steels, general structural steels, fine-grain structural steels, and pressure vessel steels.
• Suitable down to –40 °C (qualification test).

Alloy & Shielding Gas

• Alloy type: Carbon-Manganese Steel (C 0.074 %, Mn 1.68 %, Si 0.95 %).
• Shielding gas: I1 (EN ISO 14175).

Basic Mechanical Values (Stress-Relieved, 2 h @ 620 °C)

Basic Mechanical Values (Untreated)

Approvals & Standards

• EN ISO 636‑A (Class W 4Si1)
• SFA/AWS A5.18 – ER70S‑6
• ABS 3Y (I1)
• BV 3YM
• CE EN 13479 (Pressure vessels)
• DNV‑GL III YM (I1)
• UKCA EN 13479
• VdTÜV 05260

Chemical Composition (Weight‑%)

• C 0.074 %
• Mn 1.68 %
• Si 0.95 %

Typical Weld Metal Analysis

• C 0.08 %
• Mn 1.28 %
• Si 0.80 %
• S 0.013 %
• P 0.015 %

Technical Classifications

• EN ISO 636‑A : W 46 5 4Si1 / W 4Si1
• SFA/AWS A5.18 : ER70S-6

Summary
The OK Tigrod 12.64 offers a defined combination of high yield strength (400 MPa), good elongation (32%), and sufficient notch impact strength (80–150 J depending on condition). The certified approvals (ABS, BV, CE, DNV-GL, etc.) confirm its suitability for pressure vessel and construction applications. The clear chemical composition and standardized I1 shielding gas ensure reproducible welding results.