Pure aluminum wire in coil form, engineered for wire feeding systems in ladle metallurgy. Provides controlled, precise aluminum addition for deoxidation and alloying in steelmaking with high recovery rates and minimal dross generation.
Pure aluminum wire is the preferred method for precise aluminum addition in modern ladle metallurgy, offering unparalleled control over soluble aluminum content in killed steel grades. Unlike bulk aluminum additions that suffer from variable recovery and surface oxidation losses, wire feeding delivers aluminum directly into the steel bath through a guide tube at controlled speeds, achieving recovery rates of 40–60% depending on feeding depth, steel temperature, and stirring intensity. Our aluminum wire is produced from 99.7%+ purity primary aluminum, drawn to precise diameters with tolerances of +/- 0.3 mm, ensuring consistent feeding performance through standard wire injection equipment.
The wire feeding process in ladle furnace operations typically follows a two-step approach. An initial bulk aluminum addition (using ingots or particles) reduces dissolved oxygen to approximately 50–100 ppm, followed by fine-tuning with aluminum wire to hit the target soluble aluminum specification. For ultra-low-carbon steel grades (C < 0.005%), this final wire trimming is critical because the absence of carbon as a deoxidizer means aluminum bears the full burden of oxygen control. The target soluble aluminum window of 0.020–0.050% must be maintained within +/- 0.005% to ensure consistent mechanical properties and formability in downstream cold rolling and stamping operations.
Coil management is an often-overlooked aspect of aluminum wire usage that significantly impacts continuous casting productivity. Our wire is available in coil weights up to 2000 kg, spooled to minimize back-tension variations during high-speed feeding. Each coil undergoes mechanical testing for tensile strength and elongation to ensure the wire can withstand the bending stresses of the feeding machine guide tubes without cracking or breaking. The surface is maintained free of heavy oxide layers through protective packaging, maximizing the active aluminum available for deoxidation upon entering the steel bath.
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Composite wire consisting of a steel core encased in an aluminum coating, designed for efficient and controlled deoxidation in ladle metallurgy. Combines the rigidity of steel with aluminum's deoxidation power for deep penetration and high recovery rates.
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