Description

Cigweld Verticor 81Ni1 MIG Wire 15kg

The Cigweld Verticor 81Ni1 MIG Wire 15kg is a higher strength E81T1-Ni1 microalloyed rutile type seamless flux cored wire designed for all positional welding of medium to high strength steels. Formulated for use with Argon + 18–25% CO₂ shielding gas, Verticor 81Ni1 produces a low alloy weld deposit containing approximately 1% Nickel, achieving tensile strength in the 600 MPa class.

Classifications include:

• AWS/ASME-SFA A5.29: E81T1-Ni1MH8
• ISO AS/NZS 17632: B T 55 4 T1 1 M A N2 U H10

This wire is engineered for fabricators who require improved strength and impact performance beyond standard E71T-1 wires.

Higher Strength & Low Temperature Toughness

Typical all-weld metal mechanical properties using Argon + 18–25% CO₂ include:

• Yield Strength: 520 MPa
• Tensile Strength: 600 MPa
• Elongation: 26%
• CVN Impact: 65 J avg @ -40°C

The addition of nickel enhances toughness and impact resistance, making Verticor 81Ni1 suitable for structural applications exposed to colder service conditions.

Smooth, All Positional Welding

Verticor 81Ni1 is suitable for:

• Flat
• Horizontal
• Horizontal-vertical fillet
• Vertical-up
• Overhead

(Except vertical-down)

It delivers:

• Smooth arc transfer
• Low spatter levels
• Flat mitre fillet weld profiles
• Full covering, easy-releasing slag

Performance characteristics are comparable to Verticor 3XP but with increased tensile strength.

Typical Weld Metal Chemistry

Using Argon + 18–25% CO₂ shielding gas:

• Carbon: 0.06%
• Manganese: 1.35%
• Silicon: 0.35%
• Nickel: 0.90%
• Titanium: 0.035%
• Boron: 0.007%

Diffusible hydrogen levels are typically 5.0–6.0 ml/100g of deposited weld metal.

Ideal Applications

• Structural steel fabrication
• Mining and heavy equipment
• Under-matching strength welding of Bisalloy 60, 70 & 80 quenched and tempered steels
• Medium to high strength steel structures

Available Sizes – 15kg Spools

• 1.2mm – Part No. 720390
• 1.6mm – Part No. 720391

For fabricators requiring a higher strength E81T1-Ni1 flux cored wire with reliable impact performance and smooth all-positional operation, the Cigweld Verticor 81Ni1 15kg spool delivers consistent structural results.