Calciumsilizid-Fülldraht

Calcium silicide cored wire is a steel-sheathed wire packed with CaSi powder (Ca 28-32%, Si 55-65%) fed into the ladle for secondary metallurgy. The steel sheath shields the reactive calcium until it reaches bath depth, where higher ferrostatic pressure and controlled feed rate raise calcium recovery well above lump or shot additions made at the surface. Dissolved Ca converts hard, angular alumina (Al2O3) and silica inclusions into low-melting, globular calcium aluminates, preventing nozzle clogging during continuous casting and improving transverse toughness and machinability. This makes it standard practice for Al-killed and Si-killed steels at EAF mills and steel foundries casting clean, calcium-treated grades. Typical addition runs roughly 0.5-2.0 kg Ca per tonne, tuned by feeder speed to the target Ca/S ratio and inclusion chemistry. The 13 mm wire (powder fill ≈ 230 g/m, C ≤ 1.0%, Al ≤ 2.0%) gives consistent fill for repeatable deep-bath release. Each lot ships with COA and MTC under multi-regional sourcing, CIF Marmara or ex Gebze bonded stock, 20 MT FCL. Send your grade and Ca/S target for an RFQ.

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