Silicon Calcium Cored Wire – Multi-Functional SiCa Composite Wire for Ladle Deoxidation & Desulfurization

1. Product Overview

Silicon Calcium Cored Wire, also referred to as Calcium Silicon Cored Wire and abbreviated as SiCa Cored Wire in worldwide metallurgical supply chains, is a multi-effect integrated Foundry Deoxidation Cored Wire combining deep deoxidation, molten steel desulfurization and graphite grain refinement, widely recognized as standard Silicon Calcium Wire Feed and universal Casting Deoxidizer Cored Wire for medium-scale steelworks and comprehensive casting foundries. In contrast to single-element pure calcium cored wire which features high calcium burning loss and expensive raw material costs, this composite wire maintains balanced silicon-calcium proportions to slash overall molten metal processing expenditure for mass-production metallurgical plants.

Drawing on two decades of alloy smelting technical accumulation, Zemei optimizes the internal core powder matching ratio, resolving the low element recovery rate defect of pure calcium wire when applied to medium-sulfur molten steel and grey cast iron. The outer protective casing adopts 0.3–0.5mm thin low-carbon steel strip, manufactured through continuous bilateral cold rolling airtight sealing craft to prevent powder leakage during medium-speed automatic wire feeder operation. This composite wire covers two mainstream industrial application routes: pre-tapping deep deoxidation inside steel ladles for carbon steel and alloy steel, plus composite inoculation treatment for medium-sulfur grey iron and ductile iron melt.

Clients can feed this wire independently or combine it with barium-based cored wire to conduct synchronous multi-element ladle purification, lowering casting finished reject rates by over 18%. All finished SiCa Cored Wire comply with GB, ASTM and EN international metallurgical auxiliary material standards. Each reel undergoes filling uniformity detection and tensile strength testing prior to shipment; full-element SGS third-party testing can be arranged per client demands. Customizable services cover core calcium content adjustment, outer wire diameter modification and single reel load weight optimization, with full compatibility for all mainstream automatic wire feeding equipment.

2. Raw Material & Fully Automatic Production Line Flow

The filling core medium of Silicon Calcium Cored Wire is self-smelted silicon-calcium alloy ingots, crushed and processed via three-stage layered vibrating screening to filter out easily leaked superfine dust particles. The outer low-carbon steel strip possesses moderate melting speed without leaving residual slag that contaminates finished alloy mechanical properties. The entire assembly line adopts enclosed dust collection equipment and constant-volume automatic powder conveying systems, stabilizing silicon-calcium mass ratios of every batch and removing component fluctuation risks brought by manual material blending.

Complete standardized manufacturing sequence: Self-smelted SiCa alloy crushing → three-layer vibrating impurity screening → magnetic foreign iron separation → quantitative constant-volume powder delivery → steel strip unwinding & U-forming → continuous alloy powder filling → bilateral cold rolling airtight crimping → wire diameter shaping → automatic reel winding → mechanical tensile performance testing → anti-moisture vacuum export wrapping. All flue gas and dust generated during production undergo fully enclosed purification treatment to satisfy global environmental inspection criteria.

Once fed into molten metal at 1500–1600℃, this Silicon Calcium Wire Feed maintains a stable effective composite treatment window of 9–13 minutes, effectively inhibiting sulfur rebound and secondary oxidation during long-distance ladle transfer – a stable performance advantage single-element pure calcium wire cannot match. Our factory maintains year-round spot inventory of standard reels; full-container sea shipments can be completed within 7–12 working days upon prepayment confirmation.

3. Stable Chemical Ranges & Customized Size Specifications

Core alloy fixed composition scope: Si 55%–65%, Ca 28%–35%, Al ≤1.0%, S ≤0.04%, P ≤0.045%. A high-calcium customized variant with Ca 35%–40% is available for raw materials with ultra-high sulfur concentration. Selectable outer wire diameters: 9mm, 10mm, 12mm, 13mm. Standard single reel loading weight: 250kg, 500kg, 1000kg. Reels are secured to fumigated timber pallets via steel strapping, with desiccant bags added to resist high-humidity maritime transport environments.

Every reel of SiCa Cored Wire is attached with an English COA certificate recording full element composition, core filling rate and tensile mechanical indicators. The minimum trial order limit is 50kg without full-container MOQ requirements, and all trial payment amounts can be deducted from subsequent bulk orders. Adjustable custom parameters include core calcium proportion, outer wire diameter, single reel tonnage and personalized brand logo printing on pallet surfaces.

5. Global Target Application Segments

This Foundry Deoxidation Cored Wire serves two core metallurgical industrial branches:

6. Packaging, Logistics & Factory Production Output

Zemei's dedicated SiCa cored wire production workshop achieves an annual output of 5,500 metric tons, with standard reels permanently stored in dry constant-temperature warehouses. Export packaging configuration: Individual reels wrapped with anti-moisture plastic film, fixed onto fumigation-free timber pallets. We cooperate with certified international freight providers, supporting FOB Tianjin, FOB Shanghai, CIF and CFR trade terms. Small trial reels can be air-shipped within 4–8 working days, while bulk container orders require 7–12 working days for dispatch. Complete pallet stacking and loading footage will be delivered to clients after shipment completion.

7. One-Stop Customization & Comprehensive QC System

We provide full tailored services for all Silicon Calcium Cored Wire buyers: adjustable core calcium concentration, modifiable outer wire diameter, customizable single reel tonnage and free personalized brand logo printing on pallets. The central testing laboratory is equipped with wire tensile testers, core filling rate detectors and molten metal simulation furnaces. Each reel passes three layers of inspection before delivery. SGS or BV third-party pre-shipment sampling testing is supported, with all certification documents issued in full English versions. Our professional metallurgical technical team offers long-term free remote guidance on wire feeding dosage adjustment and inclusion defect elimination solutions.

8. Independent Global Client FAQ