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If you are burning rod on high-rises or welding connections in earthquake country, you know Lincoln Innershield® NR®-232. This is the legendary "seismic wire" that structural ironworkers rely on to pass strict X-ray and ultrasonic testing. This 25 lb spool of 5/64" wire is designed to run hot and fast, laying down serious metal while giving you the control you need for vertical-up welds that stack up perfectly.
The NR-232 is a self-shielded flux-core wire, meaning you don't have to drag gas bottles up the column or worry about the wind blowing your coverage away. It runs on DC- (straight polarity) and features a fast-freezing slag that acts like a shelf, holding the puddle in place when you are welding out of position. While it has a reputation for being particular about settings, once you dial in your voltage and get your electrical stickout (ESO) right—typically around 3/4" to 1"—it runs smooth and produces a flat, professional bead profile with deep penetration.
This wire is built for the heavy stuff. It excels on steel 3/16" and thicker, making it perfect for column splices, beam-to-column connections, and heavy plate fabrication. The slag is generally easy to remove if your parameters are correct, revealing a clean, sound weld underneath. Whether you are in the shop or hanging off the side of a bridge, the Lincoln NR-232 gives you the confidence that your welds will hold up to the toughest inspections and the harshest conditions.
| Additional Information |
|---|
| Brand:Lincoln Electric |
| Diameter:2.0mm (5/64") |
| Packaging:25 lb Spool |
| Aws Spec:E71T-8 |
| Polarity:DCEN |
| Wire Type:Flux-Cored |
| Position:All Position |
| AWS Classification:E71T-8, E71T8-A2-CS3-H16 |
| Wire Diameter:5/64" |
| Spool Size:25 lb |
| Shielding Gas Requirement:None (Self-Shielded) |
| Tensile Strength:70-90 ksi |
| Applications:Structural Steel, Seismic Fabrication, General Plate |
| Item:flux-cored wire |
| Weld Process:Flux-Cored (FCAW) |
| Packaging Description:25lb spool |
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