Recommended Free Tools
Most steel is made by one of two industrial routes. The integrated blast furnace-basic oxygen furnace (BF-BOF) route turns iron ore into hot metal with coke, then refines it with oxygen and scrap. The electric arc furnace (EAF) route melts scrap and, where needed, direct reduced iron (DRI) or hot metal with electricity. Both routes cast and roll liquid steel into products, but their costs respond to different feedstocks, energy markets, plant configurations and product requirements. There is therefore no meaningful single global cost per tonne without specifying a location, route, grade, input mix and accounting boundary.
Steelmaking in one view
Worldsteel reports approximately 1,882.6 million tonnes of crude steel production in 2024. Its current explainers put the broad route split at about 70% BF-BOF and 30% EAF, although the percentages are approximate and vary by region. The routes are complementary rather than interchangeable: ore-based ironmaking supplies virgin iron units, while EAFs can recycle large quantities of existing steel and use other metallic inputs when scrap quality or availability is insufficient.
As an Amazon Associate I earn from qualifying purchases.
| Characteristic | BF-BOF (integrated route) | EAF (electric route) |
|---|---|---|
| Primary metallic feed | Iron ore converted to hot metal; scrap is added in the converter | Scrap and/or DRI or hot metal |
| Main energy exposure | Coal and coke, with fuel and reductant needs concentrated in ironmaking | Electricity for melting; economics depend on the local power price and grid |
| Ironmaking from ore on site | Yes, in the blast furnace | No; any DRI or hot metal was made upstream |
| Scrap share capability | Uses scrap, generally up to about 30% of the metallic charge | Can use up to 100% scrap when suitable material is available |
| Typical cost sensitivities | Iron ore, metallurgical coal/coke, limestone, furnace efficiency and emissions controls | Scrap or DRI prices, electricity, electrode and operating efficiency, and product chemistry |
These are route-level distinctions, not guarantees for every plant. A mill may use a mixed charge, produce several grades, buy intermediate iron units, or operate equipment that changes the balance of energy and materials.
How the BF-BOF route makes steel
The integrated route starts with ore-based ironmaking. Iron ore is mostly iron oxides; the process must remove oxygen and leave metallic iron. Coking coal is converted into coke, a porous carbon material that supplies heat, structural support and the principal reducing action in the blast furnace.
#1 Best Overall
- [Ultra-Lightweight Ear Buds Designed for Small Ears] Each earbud weighs only 3.7g and features a compact, ergonomic in-ear design made especially for small ears. Secure, low-profile, and comfortable for workouts, all-day wear or overnight sleeping.The ultra-slim profile sits flush in your ear with no hard edges poking or rubbing, so you can even sleep on your side without discomfort.
- [Immersive Stereo Sound with TOZO OrigX Technology] TOZO OrigX tuning delivers clear vocals, balanced mids, and natural stereo sound for music, podcasts, and videos.
- [Long Battery Life for Daily Use] Get up to 7 hours of playtime on a single charge, with up to 32 hours total using the charging case—ideal for workdays, commuting, and extended listening sessions.
- [Bluetooth 5.3 & Stable Connection] Bluetooth 5.3 provides fast pairing, stable wireless performance, and reduced dropouts as you move around home or office.
- [Deep Bass with Clear Vocals] High-performance drivers produce punchy bass while keeping vocals clean and detailed for everyday listening.
- Prepare the burden. Iron-bearing materials, coke and limestone are sized and blended for stable furnace operation. Limestone acts as a flux, combining with unwanted minerals to form slag.
- Reduce ore in the blast furnace. A blast of hot air supports coke combustion. Carbon monoxide and heat reduce iron oxides, producing liquid hot metal (pig iron) and a separate slag phase.
- Transfer hot metal to the basic oxygen furnace. The converter receives hot metal, a controlled amount of scrap and fluxes. High-purity oxygen is blown through the bath, oxidizing excess carbon and other elements. Scrap absorbs heat and contributes metallic iron.
- Adjust the steel chemistry. Sampling and alloy additions bring carbon, manganese and other elements within the specification for the intended grade. Secondary refining may be used where tighter cleanliness or composition is required.
- Cast and roll. Liquid steel is continuously cast into slabs, blooms or billets, then reheated or processed through rolling mills into coil, plate, sections, bars and other forms.
Because the blast furnace makes new iron from ore, BF-BOF plants are especially exposed to iron-ore quality and metallurgical-coal or coke markets. The route can incorporate substantial recycled steel, but scrap cannot replace the ore-based ironmaking function completely in an integrated operation.
How the EAF route makes steel
An electric arc furnace melts metallic feedstocks with electrical energy. The usual charge is ferrous scrap, but a plant can add DRI, hot briquetted iron or hot metal when it needs extra iron units, a more predictable chemistry or a lower level of residual elements than its scrap supply provides.
- Sort and charge metallics. Scrap is graded and loaded with the planned blend of DRI, hot metal and alloys. The blend must meet limits for residual elements and contaminants imposed by the target product.
- Strike an electric arc. Graphite electrodes create arcs that melt the charge. Oxygen injection, carbon additions and burners can supplement the electrical input and speed melting.
- Refine and heat. Operators remove impurities into slag, add alloys and control temperature. The exact practice depends on the grade and the proportion of scrap versus virgin iron units.
- Cast and roll. As with BF-BOF steel, the refined liquid is cast and sent to rolling or finishing equipment.
An EAF does not make iron from ore by itself. If DRI or hot metal is part of the charge, the ore-reduction step happened in a separate upstream facility. Consequently, an EAF’s apparent plant emissions and cost cannot be interpreted without identifying the origin of those iron units and the electricity used.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Material and energy requirements per tonne
Worldsteel publishes route examples for producing 1,000 kilograms of crude steel. They are approximate averages, not a universal operating recipe; actual plants change the mix with furnace design, feedstock quality, product grade and operating practice.
Rank #2
- 【IP68 Waterproof Multifunctinal Smart Watch】Torjalph fitness activity tracker smart watch is IP68 waterproof technology ,you can wear it when swimming,handwashing,it's rain-proof which means that you perform multiple exercise modes outside without worrying about sweat or rain corroding your fitness smart watch,and this watch equipped with a 230 mAh large capacity battery magnetic charging ,and this sports activity tracker watch can be used 5-7 days If fully charged.
- 【Larger 1.83'' Full Screen Watch & Multi-dial Selection】1.83 inch full HD color touch screen smart watch for men / women provides excellent 240*284 resolution image quality ,This Bluetooth smart watch offers a better touch experience and remarkable immersion and ,more than 200 watch faces for you to choose from App"Da Fit ", you can change the dial style according to your mood to wear keeping the world on your wrist
- 【Accurate Activity Tracker Smart Watch 】sports watch activity tracker uses sweat and dust resistant breathable silicone strap, our Fitness Tracker Smart Watch for Android iOS Phones supports 12 sports modes,walking,running,bicycle,swimming,badminton,basketball,football,rope skipping. This bluetooth calls smart watch for men women is lightweight and stylish, bringing more convenient and relaxing sports experience while also providing more protection.
- 【Your 24 Hour Personal Daily Health Monitor】Fitness watch for women men full touch screen IP67 waterproof bluetooth smartwatch for Android iOS Phones with heart rate blood pressure monitor multifunction Andriod smart watch with steps counter sleep monitor sports fitness watch, monitoring blood oxygen saturation allows you to understand your physical condition in real time to track fitness progress ,to know your health status in time.
- 【More Functions Bluetooth Call Smart Watch】This fitness activity smart watch full screen for iPhone and Android phones includes a bunch of new features including:The bluetooth smart watch can hang up the phone, receive and display WhatsAPP /Text /Facebook /Twitter /Messenger reminder.Support sedentary reminder, alarm clock, stopwatch, timer,weather information,music control, remote camera control compatible with Android 5.0 and above or iOS 9.0 and above smartphones.
| Input for 1,000 kg crude steel | BF-BOF route average | Recycled-steel EAF example |
|---|---|---|
| Iron ore | 1,370 kg | 586 kg |
| Metallurgical coal or coal | 780 kg metallurgical coal | 150 kg coal |
| Recycled steel | 125 kg | 710 kg |
| Limestone | 270 kg | 88 kg |
| Electricity | Not stated in this route example | 2.3 GJ |
The EAF example still lists iron ore and coal because it is not a claim that every EAF is 100% scrap. It illustrates a recycled-steel charge that also uses other iron and carbon inputs. A plant running a different scrap share or using DRI will have a different material and energy balance.
What determines the cost of a tonne of steel?
Feedstock prices and quality
BF-BOF economics track iron-ore prices, metallurgical coal and coke, limestone and the cost of any scrap added to the converter. EAF economics track scrap, DRI or hot-metal prices and electricity, plus consumables and alloy additions. Price alone is not enough: chemical composition, moisture, size, strength and unwanted residuals affect yield, furnace productivity and whether a feedstock can make a particular grade.
High-quality ore can support efficient furnace operation; inconsistent or contaminated materials may require blending, extra treatment or a larger share of virgin iron. In an EAF, obsolete scrap with high residual copper or tin can restrict the products a mill can make unless it is diluted with DRI or hot metal. The cheapest nominal feed is not necessarily the lowest-cost usable feed.
Energy type, price and availability
Worldsteel notes that energy cost depends heavily on the type of energy and a facility’s location. BF-BOF energy inputs are predominantly coal-based because coke supplies both heat and reduction in the blast furnace. A scrap-heavy EAF relies predominantly on electricity for melting. Local power tariffs, demand charges, contract structure, interruptions and the grid’s available capacity can therefore have an outsized effect on EAF costs.
Rank #3
- [Low Noise High Fidelity] New bee guitar cord with 22AWG oxygen-free-copper center conductors provides enhanced signal transfer, the PVC insulation material and the high-density stranded copper double shield provide noise rejection for quiet operation
- [Ideal for Choice] New bee 1/4 straight and right angle metal connectors, ensures a secure connection in any instrument, pedal, or amp jack. L shape great fro on stage guitar stands
- [Wide Compatible] Suitable for mixer, power amplifier, microphone, effector, decoder, equalizer, electoronic organ, electric guitar, electric bass and other electronic equipments. Widely used in the installation of smart home, karaoke speaker, professional stage audio, etc
- [Easy Disassemble] Making incidental repairs quick and easy! Very nice, flexible cable
- [Dont Hesite to Order] 24 hours customer services and professional technology team are standing by
As production shifts some energy exposure from globally traded coal toward locally priced electricity, two otherwise similar EAFs can face very different costs in different regions. Energy efficiency also varies with route, input quality, scrap percentage, product mix, operating control and material efficiency. A route label by itself cannot predict the energy bill.
Scrap supply, collection and quality
Scrap reduces the need for newly mined ore and can lower energy use and emissions. Both routes use it: EAFs can charge up to 100% scrap, while BF operations can generally use up to about 30%. The practical limit is set by furnace technology, chemistry, product requirements and the scrap available to the plant.
There is not enough recovered scrap to satisfy total global steel demand. Steel remains in buildings, infrastructure, vehicles and machinery for years or decades before it becomes available for collection. Even when the total quantity is adequate, regional collection systems and sorting quality can leave a mill short of the grade it needs. Scrap prices can consequently rise when several EAFs compete for the same local supply.
Do these 3 things before closing this tab:
1Scan for outdated or missing drivers - takes under a minute2Repair Windows errors before they cause bigger problems3Fix the driver behind crashes, sound loss and screen glitchesPlant efficiency, scale and product mix
Two mills on the same route can have different costs because of furnace size, utilization, maintenance, yield and process control. Energy and material efficiency change with the quality of ore and reductant, the percentage and quality of scrap, and the amount of steel lost during casting and rolling.
Rank #4
- Digital Family Calendar: BSIMB digital calendar wall touch screen puts an end to your chaotic life. Designed for busy families, the digital calendar keeps you organised and in step with your family. Assign different colours and tasks to each family member to make family scheduling easier and more intuitive.
- Easy Setup and Auto-Sync: Plug in, connect to WLAN and auto-syn your electric calendar in minutes. Digital wall calendar compatible with Google calendar, iCloud calendar, Outlook calendar, Cozi calendar and Yahoo calendar. Add events directly on the device or through the ecalendar app. Electronic calendar stays current whether you're at work or traveling—no manual updates needed.
- All-In-One Home Assistant: Smart calendar builds habits and encourage independence with personalised chores. Display daily meal plan to reduce the daily ‘What's for dinner?’ stress. To-do lists keep track of everything you want. Turning chores into valuable achievements with stars and rewards, making life easier and more enjoyable.
- Manage Anytime Anywhere: BSIMB electronic calendar for family stay connected with the powerful ecalendar app. Access and manage your digital wall calendar anytime, anywhere with free features like stars & rewards, photo screensaver, chore charts, meals plans, to-do lists etc. Electronic planner paid features like Magic Import tailor advanced tools for users with special needs.
- Stay in Touch with Loved Ones: Share photos or videos from your phone to electronic wall calendar with app, instantly update your life moment, and keep in touch with your family, especially those who are far away; you can also surprise your smart calendar digital wall by sending him a wish card; it's also great for keeping tech-illiterate elders in touch with the youngsters.
Product mix matters as well. A plant making commodity bars may use a different charge and finishing sequence from one making tightly specified automotive sheet or heavy plate. Extra refining, cleanliness control, alloy additions, surface finishing and dimensional tolerances consume time and materials. The relevant cost is therefore the cost of producing the specified saleable product, not simply the cost of melting one tonne of liquid steel.
Location and input-market exposure
Location changes the delivered cost and reliability of the inputs a plant can obtain. An integrated mill needs dependable access to ore, coking coal, fluxes and high-temperature process infrastructure. An EAF needs a stable electricity supply and a regional scrap or DRI market. The same route can be advantaged in one region and disadvantaged in another because energy contracts, feedstock grades and availability differ.
For that reason, a published spot price for ore, scrap or electricity cannot be added together to produce a credible global steel cost without specifying the plant’s contracts, conversion efficiencies, yield, product and accounting period.
Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchWindows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallWhy route choice does not produce a single emissions or cost ranking
Ore-based ironmaking accounts for a large share of BF-BOF emissions because carbon is used to remove oxygen from ore. EAF emissions depend strongly on the electricity mix and on whether the charge is scrap, DRI or hot metal. A comparison must state its boundary: plant-only emissions are not the same as a life-cycle total that includes upstream mining, ironmaking or power generation.
Worldsteel’s 2025 climate report gives a 2024 industry figure of 2.18 tonnes of CO2e per tonne of steel across scopes 1, 2 and 3. That is a global, all-route average, not the footprint or production cost of an individual mill.
Recycling is important, but it cannot eliminate ore-based production while demand continues to grow faster than end-of-life steel becomes available. Today’s system needs both primary ironmaking and recycling capacity, with the balance shaped by regional resources and the products being made.
What low-emissions hydrogen steel costs today
Hydrogen-based direct reduction paired with an EAF is an emerging option in regions with suitable hydrogen and electricity supplies. Hydrogen replaces much of the carbon-based reduction step in making DRI; the resulting iron is then melted in an EAF. The economics depend on hydrogen production cost, electricity, electrolyzer and shaft-furnace utilization, ore quality, financing and local infrastructure.
The Tool Desk
Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →The International Energy Agency’s 2025 Breakthrough Agenda report estimates that early commercial plants using 100% hydrogen blends cost 50–140% more than BF-BOF plants today, with the premium varying by region. This is a pathway-specific estimate for an early deployment stage, not a universal “green steel” surcharge. Mature projects, different hydrogen blends or different regional power and ore conditions could produce another result.
As the World Steel Association’s 2025 climate report puts it: “There is no single solution to enable low and near-zero steelmaking, and a broad portfolio of technological options is required to be deployed alone or in combination as local circumstances permit.”
How to build a defensible steel-cost estimate
If you need more than a market quotation, define the calculation before collecting prices. A useful estimate should specify:
- Plant and region: include the electricity market, fuel contracts, currency and date.
- Production route: BF-BOF, scrap EAF, EAF with DRI, EAF with hot metal, or a hybrid configuration.
- Product and grade: identify whether the figure is for crude steel, a cast semi-finished form or a finished coil, plate, bar or section.
- Metallic charge: state the percentages and grades of scrap, ore, DRI and hot metal.
- Operating assumptions: include yield, utilization, energy efficiency, maintenance and material losses.
- Accounting boundary: say whether the result covers only the plant, includes purchased electricity, or includes upstream mining and ironmaking.
Only after those choices are fixed should you multiply each input by its delivered quantity, add energy and processing costs, and divide by saleable tonnes. Comparing two figures that use different boundaries can create an apparent cost advantage that is only an accounting difference.
Quick Recap
Key takeaways for buyers and analysts
- BF-BOF converts ore to hot metal with coke, then uses oxygen and scrap to make steel.
- EAF melts scrap and/or DRI or hot metal with electricity; it does not reduce ore on its own.
- Route-average input quantities are useful for orientation, not for budgeting a specific mill.
- Electricity prices are especially important to EAFs, while coal and coke dominate much of BF-BOF’s energy exposure.
- Scrap can reduce virgin-material use, but supply, collection and residual elements limit how far it can replace ore.
- Product grade, plant efficiency, location and accounting scope can matter as much as the nominal route.
- Hydrogen-based production currently carries a region-dependent early-commercial premium rather than one fixed global cost.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
