Bohler Thermanit GE-316LSi Stainless MIG Wire ER316LSi – 1.2mm, 15kg Reel (45569)

The Böhler Thermanit GE-316LSi Stainless MIG Wire (ER316LSi) is a high-performance austenitic stainless steel wire electrode developed for superior corrosion resistance, thermal stability, and consistent weld quality. Ideal for joining and surfacing applications, it performs exceptionally well on matching and similar non-stabilised Cr-Ni and Cr-Ni-Mo steels, as well as equivalent austenitic cast grades.

Engineered for durability, this low-carbon (L) filler wire provides excellent resistance to intergranular and wet corrosion up to 400°C (752°F) and remains heat-resistant and nonscaling up to 800°C (1472°F). Its low carbon content prevents carbide precipitation, ensuring long-term strength and corrosion protection in demanding environments such as chemical processing, marine, and food industry applications.

With its high silicon (Si) content, the Thermanit GE-316LSi delivers exceptional arc stability, smooth wetting behaviour, and a bright, even weld bead. The result is clean, spatter-free welding with minimal post-weld cleaning required. Suitable for both manual and automated MIG/MAG welding, it also maintains ductility and crack resistance even at cryogenic temperatures down to –196°C (–320°F).

Key Features

• Type: Stainless Steel MIG Welding Wire

• Grade: ER316LSi / 45569

• Diameter: 1.2mm

• Reel Weight: 15kg

• Material: Austenitic Cr-Ni-Mo Stainless Steel

• Corrosion Resistance: Excellent protection against intergranular and wet corrosion up to 400°C

• Heat Resistance: Stable and nonscaling up to 800°C

• Low-Carbon Composition: Minimises carbide precipitation for enhanced corrosion protection

• High Silicon Content: Improves arc stability, wetting, and bead appearance

• Arc Performance: Clean, stable arc with minimal spatter and superior finish

• Cryogenic Service: Reliable performance down to –196°C (–320°F)

• Feedability: Smooth and consistent wire feeding for MIG/MAG systems

Typical Applications

• Chemical and food processing equipment

• Offshore and marine fabrication

• Pressure vessels and heat exchangers

• Piping systems and stainless steel structures

• Cryogenic and refrigeration engineering

• General stainless steel fabrication and repair work

Classification

• AWS/ASME: ER316LSi

• EN ISO 14343-A: G 19 12 3 LSi