Pipeweld 91T-1

Pipeweld 91T-1 is an all‑positional rutile‑cored FCAW wire designed for pipe welding of steels with a minimum tensile strength of 550 MPa, using M21 shielding gas.

Key Features

• All‑positional capability for pipe welds
• High deposition rates and deep penetration
• Low diffusible hydrogen (H5) options
• Compatible with M21 shielding gas

Specifications

• Classification: SFA/AWS A5.29 : E91T1‑G; EN ISO 18276‑A : T 55 4 Z P M21 2 H5
• Approvals: CE and UKCA (EN 13479)
• Welding current: DC+
• Alloy type: Low alloy
• Tensile strength (as welded): 670 MPa, Yield strength: 604 MPa, Elongation: 27 %
• Charpy impact (as welded, -40 °C): 95 J
• Typical weld metal composition (wt %): C 0.05, Mn 1.25, Si 0.37, Ni 0.93, Mo 0.12
• Deposition data (1.2 mm wire): 100‑300 A, 21‑32 V, 3.2‑14.5 m/min, 1.3‑5.8 kg/h

Applications

• Pipe welding of low‑alloy steels
• Structural steel construction
• Heavy equipment and transportation
• Offshore rigs, bridges, and pressure vessels