Description
Specifications
Reviews
Kobelco FAMILIARC MG-80 is an ultra-high-strength solid MIG/GMAW welding wire engineered by Kobe Steel. It carries the official industry classification AWS A5.28 ER110S-G and is specifically developed for welding high-tensile steels with a minimum tensile strength of 780 MPa. It is a premier choice for heavy machinery manufacturing where structures face extreme mechanical loads and strict fatigue limits.
Technical Classifications & Settings
Industry Classification: AWS A5.28 ER110S-G.
The "G" suffix indicates a specific, proprietary chemical formulation optimized by Kobelco to guarantee a minimum tensile strength of 110,000 psi (approx. 760–780+ MPa).
Shielding Gas Requirements: Runs on an Argon-CO? mixed gas blend (typically 80% Ar - 20% CO? or a 75/25 mix).
Unlike lower-strength solid wires, it should not be used with 100% CO? to prevent excessive alloy burnout and maintain high fracture toughness.
Operating Polarity: Runs on DCEP (Direct Current Electrode Positive / DC+).Welding Positions: All-position solid wire, highly optimized for flat, horizontal fillet, and mechanized automation tracking.
Core Metallurgical Design
To achieve its ultra-high strength without sacrificing ductility or low-temperature impact toughness, the wire is enriched with premium alloying elements:
Nickel (Ni) & Molybdenum (Mo): Added to refine the grain structure, increase yield strength, and provide excellent resistance to brittle fracture.
Low Carbon Chemistry: Keeping carbon minimal ensures excellent weldability and significantly lowers the risk of cold cracking (hydrogen-assisted cracking) in high-strength joints.
Grade: ER110SG
Spec: AWS A5.28 ER110S G
Size: 1.2
Spool Wt: 20Kg

