Description

Cigweld Autocraft 316LSi MIG Wire 15kg

The Cigweld Autocraft 316LSi MIG Wire 15kg is a premium quality ER316LSi low carbon stainless steel welding wire designed for the Gas Metal Arc Welding (GMAW) of molybdenum-bearing stainless steels. Formulated with approximately 19% Chromium, 13% Nickel and 2.5% Molybdenum, this wire delivers excellent corrosion resistance, superior arc stability and high-quality weld bead appearance.

Classified to:

• AWS/ASME-SFA A5.9: ER316LSi
• ISO AS/NZS 14343: B SS316LSi

Autocraft 316LSi is ideal for welding 316, 318 and 316L stainless steels and is also suitable for general welding of 301, 302, 304/304L, 321, 347, 410 and 430 grades.

Extra Low Carbon for Corrosion Resistance

With carbon content at approximately 0.02%, Autocraft 316LSi produces extra low carbon weld deposits that resist carbide precipitation. This significantly reduces the risk of intergranular corrosion when welding low carbon stainless steel grades.

The controlled chemistry also delivers a Ferrite Number (FN) of 5–10, providing a balanced weld structure with strong resistance to hot cracking.

High Silicon for Superior Arc Performance

The elevated silicon content (0.70%) enhances:

• Arc stability
• Weld pool fluidity
• Improved edge wetting
• Smooth, well-profiled bead appearance

This makes Autocraft 316LSi ideal for fabrication requiring clean aesthetics and minimal post-weld finishing.

Mechanical Properties

Typical all-weld metal mechanical properties using Argon + 1–3% O₂ shielding gas include:

• 0.2% Proof Stress: 470 MPa
• Tensile Strength: 640 MPa
• Elongation: 38%
• CVN Impact: 90 J avg @ -60°C

These properties make it suitable for corrosion-resistant and cryogenic applications.

Recommended Applications

• Marine and coastal fabrication
• Chemical and food processing equipment
• Pressure vessels and pipework
• Stainless steel structural components
• All positional welding applications

Available Size – 15kg Spools

• 0.9mm – Part No. 721286
• 1.2mm – Part No. 721287

For fabricators requiring a premium ER316LSi stainless MIG wire offering enhanced corrosion resistance, superior arc performance and strong mechanical properties, the Cigweld Autocraft 316LSi 15kg spool delivers consistent, professional results.