Silicon Carbide (SiC) is widely used in steelmaking and foundry industries as an efficient carbon and silicon additive. Compared with traditional alloying materials, Silicon Carbide offers excellent deoxidation capability, stable chemical performance, and strong cost advantages. However, to fully realize these benefits, customization—especially in particle size and purity—plays a critical role.The Importance of Customized Silicon CarbideDifferent furnaces, smelting processes, and end products require different alloy behaviors. A “one-size-fits-all” Silicon Carbide product often fails to deliver optimal results. Customized Silicon Carbide allows steel mills and foundries to:Achieve more stable chemical controlImprove alloy recovery ratesReduce melting time and energy consumptionMinimize operational risksAmong all customization parameters, particle size and purity are the most decisive factors.Why Particle Size Matters in Metallurgical Applications1. Reaction Speed and Dissolution EfficiencyParticle size directly affects how Silicon Carbide dissolves in molten metal.Smaller particle sizes offer faster dissolution and quicker reaction, making them suitable for precise composition adjustments.Larger particles or lumps provide a slower, more controlled release, ideal for longer melting cycles or large furnaces.Choosing the right particle size ensures that Silicon Carbide reacts efficiently without excessive loss or oxidation.2. Adaptability to Different Furnace TypesDifferent furnace systems demand different particle size ranges:Induction furnaces typically require uniform granules or small lumps for stable melting and reduced splashing.Electric arc furnaces and cupolas can accommodate larger sizes, offering better penetration into the molten bath.Customized sizing helps improve feeding efficiency and ensures consistent metallurgical results.3. Reduced Dust and Material LossImproper particle size—especially excessive fines—can lead to dust formation, material loss, and unstable reactions. Controlled and customized particle sizing reduces waste and improves overall alloy utilization.Why Purity Is Equally Critical1. Stable Chemical CompositionHigh-purity Silicon Carbide ensures consistent silicon and carbon input. Low impurity levels reduce unwanted elements entering the molten metal, helping steelmakers and foundries maintain tight chemical specifications.2. Improved Deoxidation PerformancePurity directly influences deoxidation efficiency. High-purity SiC reacts more effectively with oxygen, leading to:Cleaner molten metalFewer non-metallic inclusionsImproved mechanical properties of the final product3. Higher Alloy Recovery RatesImpurities such as excessive ash or unwanted oxides reduce effective recovery. High-purity Silicon Carbide delivers higher usable silicon and carbon content, improving yield and lowering overall alloying cost. The Combined Effect: Particle Size + PurityParticle size and purity work together to determine real-world performance. Even high-purity Silicon Carbide may underperform if particle size is poorly matched to the process. Likewise, well-sized material with low purity can lead to unstable metallurgy.Customized Silicon Carbide—optimized for both parameters—ensures:Predictable reaction behaviorHigher consistency between heatsBetter process control and cost efficiency Hongshun supplies a comprehensive range of metallurgical-grade Silicon Carbide products specifically developed for steelmaking and cast iron production. With SiC content typically available at ≥85%, 88%, and 90%, and customization options upon request, Hongshun ensures consistent chemical performance across different metallurgical processes. Strict control over impurities—including low ash content, low free carbon, and minimized unwanted elements—guarantees stable input of silicon and carbon while reducing metallurgical risks.

MORE

Calcium Silicon (CaSi) has become a strategic alloy addition for steel plants aiming to enhance product quality, optimize refining efficiency, and control total operational costs. As global steel grades move toward stricter quality requirements—especially for automotive, structural, bearing, and high-purity applications—CaSi is no longer optional but essential.What Makes Calcium Silicon a High-Value Alloy?Calcium Silicon is an alloy typically composed of Ca 28–32% and Si 55–65%, designed to provide both strong deoxidation and highly effective desulfurization. Unlike conventional alloy additions, CaSi affects inclusion shape, fluidity, steel cleanliness, and downstream performance.Key Functions at a Glance：Powerful oxidation and sulfur removal propertiesModification of hard, harmful oxide inclusionsImprovement of steel fluidity during castingReduction of nozzle cloggingIncreased stability in continuous casting operationsWhy Steel Mills Increasingly Rely on Calcium Silicon1. Better Inclusion Control for High-Performance SteelsModern steel applications require inclusions that are: small, rounded, and evenly dispersed.Calcium Silicon modifies Al₂O₃and other solid oxides into liquid, low-melting-point calcium aluminates, which:Improve purityReduce micro-cracksEnhance toughness, weldability, and fatigue resistance2. Improved Casting Performance and Fewer Operational InterruptionsOperational Improvements Enabled by CaSiIndicatorWithout CaSiWith CaSi TreatmentNozzle CloggingFrequentSignificantly ReducedCasting SpeedUnstableMore ConsistentSlab/Billet DefectsHigherLowerInclusion ShapeAngular & HardRounded & Soft3. Enhanced Alloy Efficiency Compared With AlternativesCompared with traditional deoxidizers such as aluminum, silicon, or ferrosilicon, Calcium Silicon provides significantly higher efficiency at lower addition levels. Calcium reacts quickly and selectively, allowing steelmakers to reduce total alloy consumption, minimize the need for re-blowing or chemistry corrections, and achieve better end-point control of steel composition. As a result, plants gain higher metal yield, more predictable product quality, and smoother refining operations.4. Documented Cost Reduction Across the Entire Steelmaking ChainCalcium Silicon delivers cost savings through multiple layers of the steelmaking process, not just at a single step. Direct savings come from lower overall alloy usage, fewer nozzle replacements, and reduced energy waste due to more stable casting conditions. Indirect savings arise from fewer casting interruptions, lower scrap and rework rates, improved furnace turnover time, and higher product consistency that helps reduce customer complaints and rejections. When all these factors are quantified, CaSi often lowers the total cost per ton more effectively than cheaper but less efficient alloy alternatives.5. Enabling Higher Value Steel Grades Without Extra ComplexityA major advantage of Calcium Silicon is its seamless compatibility with existing refining workflows. It can be added through wire injection systems, manual addition, or automated alloy feeding, making it an easy “plug-and-play” solution. This allows steel plants to transition smoothly to high-value steel production, including ultra-low sulfur steel, clean steel applications, and high-purity continuous casting, without adding operational complexity. Hongshun’s Calcium Silicon alloy plays a vital role in modern steelmaking by significantly improving molten steel cleanliness while effectively reducing production costs. With high-quality CaSi products, Hongshun helps steel mills achieve superior deoxidation, desulfurization, and inclusion modification performance, making the refining process more efficient and the steel purer.As global demand for cleaner and higher-performance steel continues to rise, Anyang Hongshun Industrial is becoming an increasingly important partner for advanced steel producers. Steel plants that adopt Hongshun’s alloys effectively will gain remarkable advantages in product competitiveness, quality consistency, and overall steelmaking cost reduction.

MORE

Ferro Silicon (FeSi) is one of the most essential alloys in modern metallurgy. Whether you are producing ordinary carbon steel or high-performance aerospace alloys, FeSi plays a critical role in deoxidation, alloying, and improving steel properties.However, not all Ferro Silicon is created equal.In recent years, steelmakers around the world have begun shifting from standard Ferro Silicon to Low Titanium High Purity FeSi, especially in industries where steel cleanliness and microstructure control are vital.But what exactly makes these two materials different? And why does titanium content matter so much? Understanding Ferro Silicon and Its Role in SteelmakingBefore comparing the two grades, it's important to understand why Ferro Silicon is used in the first place.Ferro Silicon provides several key metallurgical functions:Strong deoxidizer: Removes oxygen from molten steelAlloying agent: Enhances strength, hardness, and fluiditySlag modifier: Helps improve steel purityFor general steel production, standard FeSi is widely sufficient. But high-performance steel applications require stricter control—particularly of trace elements like titanium (Ti).What Makes Titanium a Critical Element?Titanium is not harmful in all situations, but excessive Ti in Ferro Silicon can create unwanted inclusions during steelmaking. These inclusions:Reduce steel toughnessIncrease brittlenessAffect fatigue resistanceLower the performance of bearing steel, high-carbon steel, and aerospace alloysThis is why modern high-grade steel production increasingly demands Low-Ti High Purity Ferro Silicon.Chemical Composition Differences Between Standard FeSi and Low-Ti High Purity FeSiThe most fundamental distinction between these two materials lies in their chemical composition. Standard Ferro Silicon contains the typical FeSi 72 chemistry, where silicon ranges from 65% to 75%, but impurity levels are comparatively higher. Low Titanium High Purity FeSi maintains a similar silicon range but significantly reduces trace elements such as titanium, aluminum, and calcium. A simple comparison illustrates the magnitude of the difference:ParameterStandard Ferro Silicon (FeSi 72)Low Titanium High Purity FeSiSilicon (Si %)65–7572–75（more stable）Titanium (Ti %)0.05–0.10≤ 0.015Aluminum (Al %)1.0–1.5≤ 0.5Calcium (Ca %)0.3–0.5≤ 0.1Impurity LevelStandard industry levelsUltra-low with refined controlSuitable ApplicationsOrdinary steel productionClean steel, bearing steel, aerospace steelThese compositional improvements directly result in better metallurgical behavior and more consistent steel quality.Application Scenarios1. Standard Ferro SiliconThis grade is widely used in ordinary carbon steel, construction steel, cast iron production, and general-purpose deoxidation applications. It delivers reliable performance at a lower cost.2. Low Titanium High Purity FeSiThis advanced grade is essential for industries demanding ultra-clean steel. It is used in bearing steel, aerospace materials, tool steels, and special-purpose alloy steels where minimal inclusions are critical. Applications Where Low-Titanium High Purity FeSi Creates the Greatest AdvantageLow-Ti High Purity Ferro Silicon is especially important in metallurgical environments where micro-defects cannot be tolerated. Its primary application fields include bearing steel, tool steel, spring steel, aerospace alloys, high-carbon structural steel, and automotive-grade alloy steel. These materials require extreme consistency during refining, minimal inclusions, and reliable mechanical performance after forging, rolling, or heat treatment.Steel producers targeting high-end markets increasingly view Low-Ti FeSi not as a luxury material but as a necessary step to meet international quality standards and certification requirements. As a result, it is gradually becoming the preferred silicon source for steel mills committed to advanced metallurgy.The difference between Standard Ferro Silicon and Low Titanium High Purity FeSi is more than chemical composition—it affects every stage of steelmaking, from refining stability to the mechanical performance of final products. For routine steel production, standard FeSi remains a cost-effective choice. However, for industries where quality cannot be compromised, Low Titanium High Purity FeSi is the superior and increasingly indispensable option.

MORE

In recent years, Calcium Silicon (CaSi) cored wire has gained widespread adoption in steel plants and foundries across the globe. With its precise alloy addition, superior inclusion modification, and stable metallurgical performance, CaSi cored wire is quickly becoming an industry-standard refining material.As a leading manufacturer, Anyang Hongshun Industrial Co., Ltd. has been at the forefront of this transition, supplying high-quality CaSi cored wire that meets the evolving needs of modern steelmaking. The Rising Demand for Smarter Refining SolutionsGrowing Expectations for Clean SteelThe demand for cleaner steel continues to rise in high-end sectors such as automotive, aerospace, and energy. Calcium treatment is essential for modifying inclusions and improving steel flow.CaSi cored wire delivers consistent calcium recovery, enabling steel plants to meet stricter quality requirements with greater reliability.Comparison of Alloy Feeding MethodsCaSi Cored Wire vs Traditional Feeding MethodsItem / IndicatorTraditional Alloy FeedingCaSi Cored Wire FeedingCalcium RecoveryLow, unstableHigh, stableOxidation LossesSignificantMinimal due to steel strip jacketFeeding ControlManual, inaccurateFully controllable, automatedSteel CleanlinessInconsistentConsistently improvedCost EfficiencyHigher alloy consumptionLower total costNozzle CloggingFrequentGreatly reducedKey Advantages Driving the Industry Shift1. Improved Inclusion ModificationCalcium converts solid alumina inclusions into liquid or semi-liquid calcium aluminates more effectively when introduced through CaSi cored wire, resulting in smoother steel flow, fewer clogging issues, improved surface quality, and more stable mechanical properties.2. Higher Calcium Recovery RatesThe steel-strip sheath of CaSi cored wire prevents premature oxidation and enables the calcium to be released at the optimal depth, giving significantly higher recovery rates compared with conventional lump or powder feeding and improving overall alloying efficiency.3. Lower Overall Production CostsAlthough CaSi cored wire may seem more expensive initially, its metallurgical benefits—such as reduced nozzle blockage, shorter tundish downtime, lower defect rates, and decreased alloy consumption—translate into substantial cost savings and improved plant productivity.4. Enhanced Casting PerformanceCaSi treatment contributes to better castability, particularly in continuous casting, providing more stable steel flow, fewer interruptions, higher process reliability, and increased output per heat. Why Foundries Are Switching Now1. Industry-Wide Shift Toward AutomationAutomated wire feeding systems integrate seamlessly with modern refining technologies. As more plants upgrade their equipment, cored wire becomes the natural choice.2. Greater Focus on SustainabilityBetter calcium utilization leads to:Less alloy wasteReduced emissions in the refining processImproved energy efficiencySustainability initiatives are pushing many foundries toward more efficient solutions like CaSi cored wire.3. Rising Competitiveness in Global Steel MarketsTo stay competitive, foundries must deliver consistent, high-performance products. CaSi cored wire helps them meet international quality standards while keeping production cost-effective. With the rapid modernization of steel plants worldwide, CaSi cored wire is poised to become standard practice. Hongshun, with its strong manufacturing capacity, customization options, and export experience, is committed to supporting this global shift.As industries demand higher cleanliness standards and better metallurgical consistency, Anyang Hongshun Industrial Co., Ltd. will continue providing reliable materials and technical support to help customers achieve cleaner steel, greater efficiency, and long-term cost advantages.

MORE