Full-Spectrum Multi-Element Nodulizer For All Kinds of Ductile Iron
1. Product Brief
Rare Earth Magnesium Ferrosilicon Alloy, abbreviated Rare Earth Ferrosilicon Magnesium Alloy in cross-border trade contracts, is a multi-element composite FeSiMg Nodulizer developed for full-condition nodular iron production. Unlike single magnesium series alloy lacking impurity neutralization capacity, this Ductile Iron Spheroidizing Agent integrates silicon, magnesium, lanthanum-cerium rare earth and calcium elements at one time, serving as universal Foundry Casting Additive and all-scenario Nodularizing Inoculant for Cast Iron that can cope with low, medium and high-sulfur pig iron, recycled scrap and thin-wall precision castings synchronously. Zemei Metallurgy, with two decades of alloy smelting experience, optimizes eutectic melting craft to balance rare earth and magnesium activity, solving the long-standing pain point of spheroidization fading caused by harmful trace elements in raw iron. Conventional magnesium ferrosilicon alloy without rare earth is prone to irregular graphite and high reject rate when dealing with recycled molten iron containing lead, tin and bismuth; this Magnesium Ferrosilicon Alloy uses rare earth components to capture these harmful impurities and form separable slag, stabilizing spherical graphite morphology for long-time liquid iron holding. After being put into 1380–1550℃ molten iron, the effective spheroidization window can reach 10–16 minutes, adapting to discontinuous batch pouring of large automated foundries. It can be used independently for ladle spheroidization or matched with silicon barium inoculant to realize spheroidization + degassing + grain refinement integrated treatment, cutting casting reject ratio by more than 20%. All batches of Rare Earth Ferrosilicon Magnesium Alloy are manufactured under GB/T, ASTM and EN metallurgical norms, with triple full-element inspection before delivery. SGS, BV third-party test reports can be provided for overseas factory audit and customs filing. Our independent smelting workshop supports customized rare earth, magnesium and calcium content, as well as multi-size particle production.
2. Raw Material & Closed Cyclic Production Workflow
High-purity silicon ingots, industrial magnesium ingots, mixed La-Ce rare earth metal and low-carbon clean scrap iron are selected as core raw materials of Rare Earth Magnesium Ferrosilicon Alloy. All raw ores go through double-layer impurity screening before furnace feeding to control initial trace harmful elements at ultra-low levels. The production line is equipped with multiple medium-frequency melting furnaces and full-automatic constant proportion feeding system to eliminate artificial weighing errors that lead to unstable spheroidization effect. Complete standardized production steps: raw material grading inspection → precise automatic batching → high-temperature submerged arc eutectic smelting → continuous molten slag skimming → rare earth homogenization thermal refining → circulating water rapid quenching forming → low-speed crushing → multi-gradient particle classification → magnetic foreign matter separation → triple spectral inspection → moisture-proof export packaging. During constant-temperature refining, rare earth mischmetal is evenly fused into silicon-magnesium matrix to realize the core advantage of impurity neutralization unique to this FeSiMg Nodulizer. Closed water circulation crushing system reduces metal powder loss, raising finished yield above 96. All waste gas and wastewater are circularly purified to meet global industrial environmental audit standards. Constant-temperature dry warehouses store standard particle products all year round; full-container shipments can be finished within 7–15 working days after prepayment confirmation.
3. Fixed Chemical Index & Custom Particle Range
Stable core element range: Si 42–48%, Mg 6–9%, Re 1–3%, Ca 1–2%, Al ≤1.5%, S ≤0.03%, P ≤0.04%. Ultra-low aluminum customized grade (Al＜0.8%) available for ultra-thin wall castings. Four optional particle sizes: 0.5–3mm (cored wire special), 3–8mm (ladle manual addition), 8–25mm (intermediate frequency furnace bulk feed), 25–50mm large ingot lumps. Two standard export packages: 25kg lined woven sacks and 1 ton PP jumbo bags with lifting lugs. Each pallet is filled with desiccant to avoid rare earth-magnesium alloy oxidation during long ocean transit. Every shipment is attached with full English COA recording full-element data, particle distribution and metallographic spheroidization test results. Small trial orders starting at 50kg are acceptable without MOQ, and sample expenses can be fully deducted in subsequent bulk cooperation. Adjustable custom items include magnesium, rare earth, calcium content and pallet brand LOGO printing.
Six Exclusive Differentiated Product Advantages
Triple composite rare earth-magnesium-silicon formula of Rare Earth Ferrosilicon Magnesium Alloy
Single feeding completes spheroidization, impurity neutralization and grain refinement, an effect unachievable by ordinary magnesium ferrosilicon without rare earth.
Powerful anti-interference performance of FeSiMg Nodulizer
Rare earth captures Pb, Bi, Sn harmful trace elements, greatly slowing spheroidization fading for long-stored molten iron.
Low magnesium burning loss trait of Ductile Iron Spheroidizing Agent
Optimized eutectic craft lifts magnesium utilization rate by 12–18% versus inferior non-rare earth nodulizer, cutting per-ton molten metal raw material cost.
Wide temperature adaptation window of Foundry Casting Additive
Stably effective within 1380–1550℃, compatible with cupola, medium-frequency furnace and electric arc furnace.
Low impurity control of Magnesium Ferrosilicon Alloy
Strictly limited Al, S, P contents suppress pinhole, shrinkage and inclusion defects.
Full multi-process compatibility of Nodularizing Inoculant for Cast Iron
Four particle sizes fit furnace bulk feed, ladle punching, in-mold spheroidization and cored wire processing without equipment reconstruction.
5. Global Multi-Scenario Application Fields
This multi-element nodulizer is exported to over 20 countries, covering high-demand high-performance ductile iron sectors: auto chassis crankshafts, steering knuckles, wind power hubs, railway castings, pressure vessel parts, thin-wall lightweight automotive castings. European high-end foundries adopt medium rare earth specification for continuous assembly line; North American new energy auto manufacturers customize ultra-low aluminum grade for thin-wall parts; Middle Eastern municipal pipe groups select medium magnesium particles for large furnace batch production. Matched with silicon barium inoculant, it achieves one-step multi-element molten iron treatment, reducing overall reject rate by over 20% and gaining wide recognition from high-standard casting groups worldwide.
6. Packaging, Logistics & Factory Output
Two independent smelting workshops support annual output of 35,000 tons Rare Earth Magnesium Ferrosilicon Alloy, capable of undertaking monthly bulk orders up to 5,000 tons without delay. Export packing: fumigation-free timber pallets with stretch film fixation, desiccant placed inside each container. We cooperate with certified global freight forwarders, supporting FOB, CIF, CFR, DDP terms. 50–200kg trial coils can be air shipped within 3–7 days; full sea containers take 7–15 working days. Complete loading photos and videos will be sent to clients after shipment for cargo verification and tracking.
7. One-Stop Customization & Full-Range QC Mechanism
Customizable services cover rare earth/magnesium/calcium fine-tuning, particle grading, packaging printing and exclusive casting process guidance. Central lab equips direct reading spectrometers, metallographic microscopes and high-temperature simulation furnaces. Each lot undergoes raw material inspection, semi-finished sampling and finished metallographic testing; unqualified materials are fully recycled for re-smelting. SGS, BV pre-shipment third-party testing is supported; all certificates and test reports are issued in full English to meet overseas audit and customs filing requirements. Professional metallurgical engineers provide free 24-hour remote technical guidance on dosage and defect solving schemes.
8. Independent Exclusive FAQ (No duplication with other FeSiMg docs)
Q1: What is the core gap between rare earth-containing FeSiMg and ordinary magnesium ferrosilicon?
A1: Rare earth components neutralize lead, bismuth, tin impurities to avoid graphite fading; ordinary FeSiMg without rare earth easily generates flaky graphite in recycled high-impurity molten iron, leading to high scrap rate.
Q2: Recommended adding proportion per ton of molten iron?
A:1.0–1.6% by molten iron weight; higher dosage needed for high-sulfur recycled scrap, we provide free targeted process plan after collecting your molten iron data.
Q3:Can this alloy be crushed into powder for cored wire core material?
A3: Yes, we supply dedicated 0.5–3mm fine particle specification exclusively for wire feeding production lines.
Q4: Full set of export documents available?
A4: English COA, MSDS, SGS/BV test certificates, full ISO factory qualification, commercial invoice and packing list.
Q5: Small sample orders acceptable?
A5: 50–500kg trial batches are supported, sample cost fully deductible in later bulk contracts.
Q6: Bulk order delivery cycle?
A6: 7–15 working days after prepayment arrives, year-round permanent stock eliminates delay risks. Word Count: 1416
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