Weld Star SG3 G4Si1 Wire [5kg Spool]

The Weld Star SG3 (G4Si1) in a 5kg spool brings industrial grade structural welding capabilities to portable MIG welders. SG3 wire is a "high spec" upgrade from standard SG2, featuring increased levels of Manganese (Mn) and Silicon (Si). This chemistry provides stronger mechanical properties and a more aggressive deoxidation process, making it the ideal choice when welding on site where steel surfaces might have light mill scale or oxidation.

This 1.0mm wire is precision layer wound on a D200 (200mm) plastic spool, fitting most compact and multi process welding machines. It offers an exceptionally stable arc, reduced spatter, and the high tensile strength required for critical structural repairs, heavy equipment maintenance, and small scale engineering projects.

Key Features

Portable 5kg Format: Designed to fit smaller, portable MIG and multi process welders (D200 spool).

High Tensile Strength: Outperforms standard SG2 wire, making it suitable for high stress structural joints.

Enhanced Deoxidation: The increased Silicon and Manganese content helps "clean" the weld pool, reducing the risk of porosity on less than perfect steel.

Stable Site Welding: Engineered for a consistent arc even with long lead extensions or fluctuating power conditions common on site.

Premium "Green Wire" Quality: Sourced from high purity virgin raw materials for X-ray clear welds and minimal contact tip wear.

Smooth Feeding: Precision layer wound to prevent snags and ensure a steady wire feed speed during critical passes.