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镇安冶金
石墨电极
We produce four distinct power classifications of graphite electrodes spanning diameters from 200 mm to 700 mm (8 inches to 28 inches). Each electrode string is paired with matching, high-precision machined graphite nipples featuring 3-TPI or 4-TPI thread pitch profiles designed to withstand severe electrical loads and mechanical vibrations.
Cut Electrode Consumption by Up to 15%
Low Coefficient Of Linear Expansion
Custom Diameter & Nipple Threading
Graphite Electrode For EDM
Suitable For High Precision Processing
Engineered for Extreme Thermal Shock
Introduction to Graphite Electrodes
Our graphite electrodes are made of high-quality petroleum coke and asphalt, and are made through calcination, batching, kneading, molding, baking, graphitization, and mechanical processing. The graphite electrode joints are made through 3 impregnations and 4 baking processes.
Graphite electrodes are widely used in foundries for melting and casting metals due to their good electrical conductivity, heat resistance, and durability. Foundries use a variety of graphite electrodes, such as low resistance graphite electrodes or high density graphite electrodes, depending on their specific needs.
Our graphite electrodes are Engineered for high-efficiency Electric Arc Furnaces (EAF), Ladle Refining Furnaces (LF), and Submerged Arc Furnaces (SAF). Delivering maximum thermal shock resistance, ultra-low electrical resistivity, and exceptional mechanical strength for global steelmakers, metal foundries, and industrial metallurgical leaders.
Shape Of 石墨电极
石墨电极 规格
Ultra High Power Graphite Electrodes
Ultra-high power graphite electrode, with extremely low resistivity and extremely high conductivity.
Usually made of high purity petroleum coke or needle coke.
Mainly used in fields requiring high current and high power, such as arc furnace smelting.
Technical Specification of UHP Graphite Electrode
| Dia. (inch) | Resistance (≤,μΩ⋅m) | Density (≥,g/cm3) | Flexure Strength (≥,MPa) | Elastic Modulus (≤,GPa) | Ash Content (≤,%) | CTE (100∘C−600∘C) (≤,10−6/∘C) | Current Load (A) | Current Density (A/cm2) |
| 10 | 5.5 | 1.67 | 11 | 14 | 0.3 | 1.5 | 8100–12200 | 20–30 |
| 12 | 5.5 | 1.67 | 11 | 14 | 0.3 | 1.5 | 15000–22000 | 20–30 |
| 14 | 5.5 | 1.67 | 11 | 14 | 0.3 | 1.5 | 20000–30000 | 20–30 |
| 16 | 5.5 | 1.67 | 11 | 14 | 0.3 | 1.5 | 25000–40000 | 19–30 |
| 18 | 5.5 | 1.66 | 11 | 14 | 0.3 | 1.5 | 32000–45000 | 19–27 |
| 20 | 5.5 | 1.66 | 11 | 14 | 0.3 | 1.4 | 38000–55000 | 18–27 |
| 22 | 5.5 | 1.66 | 11 | 14 | 0.3 | 1.4 | 42000–66000 | 17–26 |
| 24 | 5.5 | 1.66 | 11 | 14 | 0.3 | 1.4 | 49000–76000 | 17–26 |
UHP graphite electrodes is used for the recycling of steel in the electric arc furnace industry. Its main ingredient is high-value needle coke which is made from either petroleum or coal tar. Graphite electrodes are finished with a cylinder shape and machined with threaded areas at each end. In this way, the graphite electrodes can be assembled into an electrode column using electrode nipple.
| Nominal Dia. (inch) | Nominal Dia. (mm) | Actual Dia. max. (mm) | Actual Dia. min. (mm) | Actual Dia. rough spot (mm) | Nominal Length (mm) | Tolerance (mm) | Short Length (mm) |
| 10 | 250 | 256 | 251 | 248 | 1600/1800 | 100 | -275 |
| 12 | 300 | 307 | 302 | 299 | 1600/1800 | 100 | -275 |
| 14 | 350 | 357 | 352 | 349 | 1600/1800 | 100 | -275 |
| 16 | 400 | 409 | 403 | 400 | 1600/1800/2000/2200 | 100 | -275 |
| 18 | 450 | 460 | 454 | 451 | 1600/1800/2000/2200 | 100 | -275 |
| 20 | 500 | 511 | 505 | 502 | 1800/2000/2200/2400 | 100 | -275 |
| 22 | 550 | 562 | 556 | 553 | 1800/2000/2200/2400 | 100 | -275 |
| 24 | 600 | 613 | 607 | 604 | 2000/2200/2400 | 100 | -275 |
笔记： The dimensional and tolerance standards for graphite electrodes apply across all grades (UHP, HP, and RP).
High Power Graphite Electrode
High power graphite electrode, with lower resistivity than ordinary graphite electrode and higher conductivity.Made of pre-oxidized petroleum coke or needle coke.
Commonly used in medium-sized electric arc furnaces, aluminum electrolysis industry, etc.
| Dia. (inch) | Resistance (≤,μΩ⋅m) | Density (≥,g/cm3) | Flexure Strength (≥,MPa) | Elastic Modulus (≤,GPa) | Ash Content (≤,%) | CTE (100°C-600°C) (≤,10⁻⁶/°C) | Current Load (A) | Current Density (A/cm2) |
| 10 | 6.5 | 1.65 | 10.5 | 12 | 0.3 | 2 | 7200–11000 | 18–24 |
| 12 | 6.5 | 1.65 | 10.5 | 12 | 0.3 | 2 | 13000–19000 | 18–24 |
| 14 | 6.5 | 1.65 | 10.5 | 12 | 0.3 | 2 | 18000–26000 | 18–24 |
| 16 | 6.5 | 1.64 | 10 | 12 | 0.3 | 2 | 22000–35000 | 17–23 |
| 18 | 6.5 | 1.64 | 10 | 12 | 0.3 | 2 | 28000–40000 | 17–22 |
| 20 | 6.5 | 1.63 | 10 | 12 | 0.3 | 2 | 33000–48000 | 16–21 |
| 22 | 6.5 | 1.63 | 9.8 | 12 | 0.3 | 2 | 38000–55000 | 16–20 |
| 24 | 6.5 | 1.63 | 9.8 | 12 | 0.3 | 2 | 44000–65000 | 15–20 |
Regular Power Graphite Electrode
Moderate resistivity
Higher resistivity compared to both UHP and HP grades, making it the most cost-effective choice for standard electric arc furnace operations with moderate current density requirements (11–18 A/cm²).
Good conductivity
Although not as good as UHP, it has higher conductivity than HP graphite electrodes.
Moderate cost
The manufacturing process is relatively simple, and the cost is lower than UHP, but higher than HP graphite electrodes.
Wide range of applications
Can be used for small and medium-sized arc furnace smelting, aluminum electrolysis industry, foundry industry, etc.
| Dia. (inch) | Resistance (≤,μΩ⋅m) | Density (≥,g/cm3) | Flexure Strength (≥,MPa) | Elastic Modulus (≤,GPa) | Ash Content (≤,%) | CTE (100°C-600°C) (≤,10⁻⁶/°C) | Current Load (A) | Current Density (A/cm2) |
| 10 | 8.5 | 1.6 | 9.8 | 10 | 0.5 | 2.6 | 6000–8500 | 14–18 |
| 12 | 8.5 | 1.6 | 9.8 | 10 | 0.5 | 2.6 | 10000–15000 | 14–18 |
| 14 | 8.5 | 1.6 | 9.8 | 10 | 0.5 | 2.6 | 14000–21000 | 14–18 |
| 16 | 8.5 | 1.58 | 8.8 | 10 | 0.5 | 2.6 | 18000–27000 | 13–17 |
| 18 | 9 | 1.58 | 8.5 | 10 | 0.5 | 2.8 | 22000–32000 | 13–17 |
| 20 | 9 | 1.58 | 8.5 | 10 | 0.5 | 2.8 | 26000–38000 | 12–16 |
| 22 | 9 | 1.58 | 8 | 10 | 0.5 | 2.8 | 31000–44000 | 12–16 |
| 24 | 9 | 1.58 | 8 | 10 | 0.5 | 2.8 | 36000–50000 | 11–15 |
石墨电极 特性
What it means: Made from premium needle coke and graphitized at 3,000℃.
Why it matters: It carries heavy electrical current with very low power loss, making your furnace melt scrap steel faster and more efficiently.
What it means: Very low Thermal Expansion Coefficient (CTE).
Why it matters: It handles sudden, extreme temperature changes inside the furnace without cracking, splitting, or peeling.
What it means: Double-baked and vacuum-impregnated for maximum strength.
Why it matters: It resists bending and heavy impacts when scrap metal caves in during melting, preventing costly electrode breakages.
What it means: High bulk density (1.68–1.74 g/cm³ for UHP) with a dense, compact structure.
Why it matters: It burns much slower on the sides, extending the electrode lifespan and preventing “thin-waist” wear.
What it means: Extremely low ash content (0.1%for UHP grade).
Why it matters: It does not introduce impurities into your liquid steel, ensuring high-quality steel and metal production.
What it means: Threads are turned on full-automatic CNC machines with heat-expanding locking plugs.
Why it matters: The joint expands when heated, keeping the connection tight and preventing threads from loosening during heavy furnace vibrations.
Cut Electrode Costs by 8% – 15%: High density and slow oxidation directly lower your net electrode consumption per ton of steel.
Reduce Furnace Downtime: Very low breakage rates keep your furnace running continuously without unplanned shutdowns.
Save Electricity: Stable electric arcs shorten tap-to-tap melting times, lowering your overall power bills.
100% Quality Guaranteed: Every single electrode is checked with 100% Ultrasonic Flaw Detection (NDT) and can be tested by SGS, Intertek, or Bureau Veritas before shipping.
Application of Graphite Electrodes
Graphite electrodes are widely used in the production of alloy steel, metal and other non-metallic materials.
Our graphite electrodes are designed to excel across a wide range of high-temperature metallurgical processes, delivering high energy efficiency and continuous melting performance：
- Electric Arc Furnace (EAF) Steelmaking: Serves as the primary conductor carrying heavy electric current to generate high-temperature plasma arcs that melt solid steel scrap at temperatures exceeding 3,000°C. Our UHP electrodes maintain excellent structural toughness during scrap cave-ins, preventing column breakage and minimizing arc disruptions.
- Ladle Refining Furnace (LF) Metallurgy: Used during secondary steelmaking to refine, deoxidize, and adjust liquid steel chemical composition and temperature prior to continuous casting. Requires high thermal conductivity, low ash content, and smooth thread alignment for steady power input without carbon contamination.
- Submerged Arc Furnace (SAF) Smelting: Vital for non-ferrous and ferroalloy production, including Metallic Silicon (Silicon Metal), Ferrosilicon, Silicomanganese, Yellow Phosphorus, Titanium Slag, and Calcium Carbide. Offers outstanding mechanical resistance to crushing forces caused by continuous solid raw material charging.
- Foundry Cupolas & Non-Ferrous Smelting: Applied in gray iron foundries, ductile iron production, and copper or aluminum smelting for precise temperature holding, scrap melting, and carbon additive control.
为什么选择振安冶金作为您的长期合作伙伴？
Welcome to your direct manufacturing and export hub for high-performance graphite electrodes. As a vertically integrated enterprise combining large-scale industrial manufacturing with dedicated international trading operations, we bridge the gap between heavy industrial manufacturing excellence and seamless global trade logistics. We eliminate unnecessary middleman margins, ensure total transparency, provide rigid quality control at every stage of production, and offer full-spectrum customer support from contract signing through furnace installation.
Our Production Capabilities
Our modern production complex covers over 30,000 square meters, featuring advanced Acheson graphitization furnaces, fully automated 2,500-ton hydraulic extrusion presses, multi-chamber ring baking furnaces, vacuum pressure impregnation autoclaves, and high-precision CNC nipple machining centers. With an annual production capacity exceeding 50,000 metric tons of graphite electrodes, we reliably fulfill large-scale recurring orders for major steel mills, non-ferrous smelters, ferroalloy producers, and international metallurgical supply houses worldwide.
Successfully Exported To Multiple Countries.
Our graphite electrodes export operations span over 30 countries and key steelmaking hubs, with dedicated focus and optimized logistics routes servicing high-demand export destinations, including:
United Arab Emirates (UAE) Russia South Korea Malaysia Brazil Italy Egypt India Vietnam South Africa Turkey
Partner with us, and our technical sales engineers will provide you with tailored electrode solutions designed to optimize arc stability, reduce net consumption, and maximize daily output.
30000（平方米）
我们的工厂占地30000平方米。
1500000（吨）
年产量和销量超过150万吨。.
专业团队为您提供更优质的服务
振安冶金拥有一支集销售、生产和研发于一体的高素质人才团队，其中包括16名高级研究员、28名专业工程师、35名国际销售人员、10名高级运营人员和300多名生产技术人员。.
甄安冶金证书展示
我们的产品已出口到78个国家，许多老客户参观过我公司和工厂，并多次下单。一次合作后，客户便对我们建立了信任，他们会多次下单，有些客户还会为我们介绍新客户。.
真南为您提供哪些服务？
为了满足不同客户的需求，我们接受以下定制服务：
定制产品规格： 根据客户的具体需求，我们可以提供不同规格的硅金属产品，包括化学成分、尺寸、形状、表面处理等方面的定制服务。.
定制包装要求： 根据客户的具体需求，可以提供不同类型的包装材料和包装方法，以确保产品在运输和储存过程中的安全性和稳定性。.
定制产品质量： 根据客户的具体需求，可以提供不同的产品质量要求，包括在化学成分、物理性能、表面处理等方面的定制服务。.
为了确保您收到的产品数量和质量，我们更加注重包装：
耐高压性： 我们的包装具有足够的抗压性能，能够承受堆放和运输过程中可能产生的压力和振动。.
抗冲击性： 多层包装可避免运输过程中可能发生的冲击和震动，最大限度地保护产品免受损坏。.
密封性能： 增加一层防水膜具有足够的密封性能，可防止空气、水分和其他物质进入包装，影响原材料的质量。.
交通便利： 我们一般使用桶装或吨袋进行包装，以便您更方便地运输。.
环保且可持续： 我们的包装材料环保，您可以安全地回收或处理它们，而不会污染当地环境。.
如果您想要免费样品，流程如下：
联系我们： 请通过网站上的留言表格告诉我们您的需求和联系方式，或者发送电子邮件至 andy@zaferroalloy.com。.
沟通详情： 我们的专业销售人员会根据您的需求推荐最合适的产品，并询问您是否需要样品。如果您需要样品，我们将免费提供。.
发货和收货： 样品寄出后，我们会通知您并跟踪样品的物流信息，以确保您能按时收到样品。.
真南冶金提供的产品可通过第三方检测机构进行以下检测服务。这些第三方检测机构可提供独立、客观的验证，证明产品符合相关标准和法规。.
外观检查： Check whether the surface is flat and smooth, and whether there are obvious damage, cracks or breakage.
Dimension detection: Measure the dimensional parameters of the graphite electrode, including length, diameter, shape, etc.
Density determination: By measuring the density of the graphite electrode, the density and structural quality of the material can be evaluated.
Conductivity test: By testing the resistance or conductivity of the electrode, the conductivity of the electrode can be evaluated.
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