Description
Specifications
Reviews
Kobelco MG-S80B2F is a highly specialized solid MIG welding wire within Kobelco's TRUSTARC series.
It conforms strictly to the international industry classification AWS A5.28 ER80S-B2.
Unlike general-purpose wires, this specific model features a distinct structural application design.
Key Specifications & Applications
Target Materials: Formulated for 1–1.25% Chromium and 0.5% Molybdenum low-alloy, creep-resisting steel. It is applied primarily to ASTM A387 Grade 11 and equivalent steel grades.
Single-Pass Restriction: Highly optimized for high-efficiency 1-pass fillet welding. Kobelco explicitly mandates that this wire must not be used for multi-pass welding due to its specific metallurgical behavior in single runs.
Common Use Cases: Extensively deployed in the specialized automated fabrication of panel fin tubes and structural walls for high-pressure industrial boilers.
Welding Process: Applied via automatic or semi-automatic Gas Metal Arc Welding (GMAW / MIG) using Direct Current Electrode Positive (DCEP) polarity.
Shielding Gas Requirements: Utilizes an Argon gas mixture, typically optimized with Ar + 2–5% O? or Ar + 5–20% CO?.
Grade: ER80S-B2
Spec: AWS A5.28 ER80S B2
Size: 1.2
Spool Wt: 15Kg

