Lincoln Electric Blue Max® 309LSi | 0.030" x 25lb | ED023962

Lincoln Electric Blue Max MIG 309LSi Stainless Steel Welding Wire – 0.030 in, 33 lb Spool (ED023962)

The Lincoln Electric Blue Max MIG 309LSi (ED023962) is a premium stainless steel wire designed for MIG welding dissimilar metals and for buffer layers between carbon steel and stainless steel. With a 0.030-inch diameter and 33-pound spool, this ER309LSi wire offers high arc stability, excellent corrosion resistance, and smooth weld bead appearance, making it ideal for industrial, structural, and piping applications.

Formulated with high silicon content, Blue Max 309LSi provides superior wetting action and improved bead appearance, which reduces the need for post-weld cleaning. Its low carbon content also helps prevent carbide precipitation and intergranular corrosion in high-temperature environments.

Product Specifications:

• AWS Classification: ER309LSi

• Diameter: 0.030 in

• Spool Size: 33 lb

• High silicon for better wetting and appearance

• Low carbon to reduce risk of intergranular corrosion

• Excellent for joining dissimilar metals and overlay welding

• Shielding Gas: 98% Argon / 2% O₂ or other appropriate Ar-based mixtures

Typical Applications:

• Welding stainless steel to carbon or mild steel

• Buffer layers before cladding

• Food, beverage, and pharmaceutical processing equipment

• Piping and pressure vessels

• Petrochemical and power generation industries

Key Benefits:

• Consistent feedability for both manual and robotic MIG processes

• Excellent corrosion and heat resistance

• Clean weld finish with minimal spatter

• Reduces the risk of cracking and ensures strong metallurgical bonding

Performance You Can Rely On

Blue Max 309LSi is trusted by welding professionals for its consistent quality and dependable performance in challenging stainless steel applications. Whether you're working in fabrication shops or field installations, this wire is engineered to deliver results that meet the highest standards.

Now Available – Order Today

The Lincoln Electric Blue Max MIG 309LSi (ED023962) is in stock and available for fast shipping. Get the wire you need to complete your stainless steel welding projects with confidence and efficiency.