Ferrosilicon Calcium Cored Wire | Deoxidation & Desulfurization Calcium Silicon Wire Feed from Zemei Factory

1. Product Overview

Ferrosilicon Calcium Cored Wire, commonly abbreviated as FeSiCa Cored Wire in international metallurgical trade contracts, is an all-in-one Calcium Inoculant Cored Wire engineered to tackle high-sulfur molten steel and grey iron treatment challenges. Unlike single silicon or barium cored wires that can only deliver partial metallurgical effects, this proprietary Foundry Desulfurization Cored Wire combines silicon's grain refining, calcium's desulfurization and auxiliary deoxidation performance, serving as the standard Ferrosilicon Calcium Wire Feed and universal Casting Deoxidizer Cored for integrated ladle processing in large steelworks and heavy casting plants. Zemei Metallurgy's in-house R&D team optimized the core powder matching formula after hundreds of molten metal simulation trials, solving the persistent defect of high sulfide inclusion caused by recycled high-sulfur scrap raw materials. The wire adopts thin 0.3–0.5 low-carbon steel outer sheath, with graded FeSiCa alloy powder sealed inside through continuous cold rolling forming technology; tight airtight wrapping avoids fine powder leakage during high-speed automatic wire feeding equipment operation. This wire possesses dual applicable production tracks: secondary refining of molten steel before tapping, and composite inoculation of high-sulfur recycled cast iron liquid. It can be used as a standalone wire feed material, or matched with barium inoculant cored wire for synchronous multi-element wire feeding compound treatment to cut overall casting reject ratio by more than 22%. All finished coils fully comply with ASTM, EN and domestic GB metallurgical auxiliary standards; each finished reel undergoes filling uniformity and air tightness full inspection before delivery, and SGS third-party full-element testing reports can be issued upon clients' requests. Our dedicated cored wire production workshop holds complete customization capacity on core calcium content, outer wire diameter and single coil weight, compatible with all mainstream domestic and imported automatic wire feeders on the market.

2.Raw Material & Full Automated Manufacturing Process

The core filling medium of Ferrosilicon Calcium Cored Wire is self-smelted ternary ferrosilicon calcium alloy ingots. After crushing treatment, materials go through two rounds of layered vibration screening to filter overfine dust prone to leakage during high-speed wire feeding; the outer wrapping low-carbon steel strip features low melting point, which will dissolve rapidly without leaving hard residual slag to contaminate molten metal internal texture. The whole production assembly line is equipped with closed dust recovery system and constant-volume automatic powder feeding equipment, which stabilizes silicon-calcium proportion of every batch of core material and eliminates fluctuating desulfurization efficiency brought by manual proportioning errors. Complete standardized production sequence: Ternary alloy crushing → double-layer vibration impurity screening → magnetic separation of iron oxide foreign matter → quantitative constant volume powder conveying → steel strip uncoiling & U forming → continuous core powder filling → bilateral cold airtight crimping → fixed wire diameter shaping → automatic reel winding → mechanical airtight performance testing → anti-moisture film export packing. All flue gas and dust generated during production are collected and purified via full-enclosed circulation devices, satisfying global environmental audit standards of European and American metal manufacturers. After being fed into 1430–1510℃ molten metal, the effective composite purification window of this Ferrosilicon Calcium Wire Feed lasts 9–13 minutes, effectively suppressing sulfur rebound and secondary oxidation phenomena during long-distance ladle transportation. Our factory maintains year-round spot inventory of standard specification coils; full-container sea shipments can be finished within 7–12 working days after receiving prepayment without stockout delays.

3.Fixed Chemical Index & Customizable Sizes

Stable core alloy element range: Si 58%–68%, Ca 10%–18%, Al ≤1.5%, S ≤0.045%. Custom high-calcium special grade (Ca 18–25%) is available for ultra-high sulfur molten metal raw materials. Optional outer wire diameters:9/10/12/13mm to match all models of ladle wire feeders. Standard single coil loading weights:250kg,500kg,1000kg. All reels are secured with steel strips on fumigation-free timber pallets, with multiple desiccant bags placed inside each pallet to absorb moisture and prevent core calcium alloy powder oxidation failure during long ocean voyages. Every shipment of FeSiCa Cored Wire is attached with full English COA certificate recording complete element data, core filling ratio and wire tensile strength indicators. As a professional supplier of Casting Deoxidizer Cored Wire, we support trial coil orders starting at 50kg without minimum order threshold, and trial payment can be fully deducted from subsequent bulk container cooperation. Adjustable custom items include calcium mass proportion, outer wire diameter, single reel tonnage and pallet brand logo printing service.

5. Global Target Application Fields

This Foundry Desulfurization Cored Wire serves two core metallurgical sectors worldwide:

6.Packaging, Logistics & Factory Capacity

Zemei's dedicated cored wire workshop reaches an annual output of 4,500 tons of Ferrosilicon Calcium Cored Wire. Standard reels are stocked in constant-temperature dry warehouses all year round. Export packing scheme: Single reel wrapped with anti-moisture plastic film, fixed on fumigated timber pallets with steel binding belts. We cooperate with professional bulk metal freight forwarders, supporting FOB Tianjin, FOB Shanghai, CIF, CFR trade terms. Small trial coils can be shipped by international air express within 4–8 working days, while full-container goods take 7–12 working days. Complete loading photos and pallet stacking videos will be delivered to clients after container loading for cargo verification and logistics tracking.

7.One-Stop Customization & Full-Range QC System

We offer full customized solutions for global purchasers of Ferrosilicon Calcium Cored Wire, including calcium content fine-tuning, wire diameter modification, single reel weight adjustment and free pallet brand printing. The central testing lab is equipped with wire tensile testers, filling rate detectors and high-temperature molten metal simulation furnaces. Each coil undergoes three layers of inspection: raw core material test, semi-finished reel sampling, finished airtight & metallurgical performance verification. Unqualified products are fully recycled for reprocessing without outflow. SGS/BV third-party pre-shipment sampling inspection is available; all inspection files are issued in full English to meet overseas factory audit and customs filing demands. Our professional metallurgical team provides free long-term remote technical guidance on wire feeding dosage and high-sulfur defect elimination schemes.

8. FAQ