ER80S-D2 is a copper-coated, low-alloy steel welding wire (for MIG/GMAW/TIG) containing manganese and molybdenum, providing high strength, good ductility, and excellent low-temperature toughness for welding high-strength, fine-grained structural steels and pressure vessels, offering stable arcs and radiographic quality welds, often requiring pre-heating.
Key Characteristics
Type: Solid, copper-coated low-alloy steel wire (AWS A5.28, EN ISO 14341).
Alloying Elements: Contains ~0.5% Molybdenum (Mo) for strength and Manganese (Mn) & Silicon (Si) as deoxidizers.
Weld Properties: Deposits welds with high tensile strength (around 550-600 MPa yield), good impact strength (even at low temps like -30C), and excellent creep resistance up to 500C.
Performance: Provides a stable arc, smooth operation, low spatter, and radiographic quality welds.
Applications: Ideal for high-strength steels (up to 550 MPa yield), pressure vessels, penstock pipes, heavy machinery, shipbuilding, and general construction.
Welding: Used for single/multi-pass, out-of-position welding; often requires pre-heat (around 135-165C) and specific shielding gases (Argon mixes or 100% Argon).