Dual Shield 55

Dual Shield 55 is an all‑positional rutile cored wire designed for welding steels with a minimum yield strength of 550 MPa using M21 shielding gas.

Key Features

• Gas‑shielded flux‑cored wire (FCAW/MCAW)
• Suitable for low alloy steels (<1% Ni)
• High deposition rates and deep penetration
• Low diffusible hydrogen (< 5 ml/100 g)
• Provides flat welds with excellent wetting

Specifications

• Classifications: SFA/AWS A5.29 : E91T1‑GM21, E91T1‑Ni1M21; EN ISO 18276‑A : T 55 4 Z P M21 2 H5
• Approvals: ABS 4YQ500 SA H5, CE EN 13479, UKCA EN 13479
• Welding Current: DC+
• Shielding Gas: M21 (EN ISO 14175)
• Alloy Type: Low alloy steel (<1% Ni)
• Diffusible Hydrogen: < 5 ml/100 g
• Tensile Properties (As Welded, M21): Yield 604 MPa, Tensile 663 MPa, Elongation 27 %
• Charpy Impact (As Welded, M21): –40 °C, 106 J
• Typical Weld Metal Analysis: C 0.05 %, Mn 1.45 %, Si 0.41 %, Ni 0.95 %
• Deposition Data (1.2 mm): 100‑300 A, 21‑32 V, 3.2‑14.5 m/min, 1.3‑5.8 kg/h

Applications

• Structural steel construction
• Heavy equipment and transportation
• Bridges, offshore rigs, shipbuilding
• Pressure vessels and general fabrication