84568 - Bohler Diamond Spark 52 Seamless Flux-Core Wire 1.6mm E71T-1M

High-Performance Seamless Flux-Cored Wire for Critical Structures

The Bohler Diamond Spark 52 is a premium seamless rutile flux-cored wire designed for the welding of carbon and high-strength steels. Engineered by voestalpine Böhler Welding, this 1.6mm (1/16") wire represents the pinnacle of flux-cored technology, featuring a hermetically sealed copper-coated design. Unlike traditional folded wires, the seamless construction of the Diamond Spark 52 completely prevents moisture absorption from the atmosphere. This unique feature guarantees extremely low diffusible hydrogen levels (H4), making it an ideal choice for critical applications where hydrogen-induced cracking is a concern. It eliminates the need for re-drying, even after long periods of storage in varying climate conditions.

This wire is formulated to meet rigorous AWS classifications, including E71T-1M, E71T-9M, and E71T-12M. It delivers exceptional mechanical properties, particularly impact toughness at low temperatures (down to -60°C), ensuring structural integrity in harsh environments. The copper coating on the wire surface not only protects against corrosion but also significantly improves current transfer between the contact tip and the wire. This results in a stable arc, reduced voltage fluctuation, and extended service life for consumables. The wire is designed for use with mixed shielding gas (Argon/CO2), providing a smooth spray-like transfer that is highly appealing for industrial fabrication.

Industrially, the Diamond Spark 52 is a workhorse for sectors such as offshore construction, shipbuilding, pressure vessel fabrication, and heavy mechanical engineering. Its high deposition rate and all-position capability (though 1.6mm is often preferred for flat/horizontal high-fill passes) allow for significant productivity gains. The slag system is designed for easy removal, often self-releasing, which reduces post-weld cleaning time and labor costs. For procurement managers and welding engineers seeking a reliable, high-specification consumable that ensures X-ray quality welds and compliance with strict project requirements, the Bohler Diamond Spark 52 is the superior choice.