What it is
An injection-carbon family for EAF foamy-slag practice, requiring joint acceptance of fixed carbon, ash, volatiles, sulfur, sizing, conveyability and the injection system.
Steelmaking auxiliaries · EAF injection materials
EAF foamy-slag injection carbon
An injection-carbon family for EAF foamy-slag practice, requiring joint acceptance of fixed carbon, ash, volatiles, sulfur, sizing, conveyability and the injection system.
Product codeAX-EAF-INJECTION-CARBON
Industry application2
Key indicators固定碳 / 灰分 / 挥发分 · S / P / 水分 · 粒度分布 / 输送性
Order boundaryQuotation and order confirmation
QUICK DECISION
Four answers before reading the technical detail
This section supports initial screening; final grade, addition and effects require operating conditions, formal documents and plant validation.
What it does
- Foamy-slag formation support
- Arc-shielding support
- Support for slag-oxide reduction reactions
Where it fits
- Dedicated injection point during EAF melting and refining
- Dedicated injection point during EAF melting and refining
Boundary not to miss
- Sizing, volatiles, moisture or injection mismatch can cause line blockage, blowback, dust, uncontrolled CO reaction or variable carbon efficiency
- Sizing, volatiles, moisture or injection mismatch can cause line blockage, blowback, dust, uncontrolled CO reaction or variable carbon efficiency
SELECTION BOUNDARY
Start with the selection boundary
This is an EAF injection process material, not an ordinary steel recarburizer; sizing, conveyability, addition point, reaction objective and acceptance criteria must remain separate.
PRODUCT MANUFACTURING
Product manufacturing process
Actual carbon sources for EAF injection can differ. A general commercial workflow includes carbon-source identity and provenance review, drying, crushing/milling, classification, necessary homogenization or blending, conveyability testing, representative sampling and sealed packing. A recycled carbon source is acceptable only after chemistry, contaminants, consistency and regulatory status are approved.
- 01Verify carbon-source identity, provenance, contaminants and safety/regulatory documents
- 02Dry, crush or mill while controlling size distribution and combustible dust
- 03Homogenize or blend for the actual SKU while preventing foreign matter and cross-lot mixing
- 04Test fixed carbon, ash, volatiles, S/P, moisture, sizing and conveyability
- 05Pack sealed, transfer with grounding and retain lot traceability
SPECIFICATIONS & PACKAGING
Grades, specifications, indicators and packaging
Specification selection must confirm product identity, guaranteed chemistry, sizing, form, packing, test method and order use together.
- 01Confirm formal product identity, applicable standard, supplier grade and actual production route
- 02Fix principal chemistry, limiting items, physical indicators and the corresponding test methods
- 03Confirm form, size distribution, fines, moisture, flowability or unit mass for storage, handling and charging equipment
- 04Confirm pack, label, TDS, SDS/PSI, sampling rules and lot COA
GRADES & SPECIFICATIONS
Grades, specifications, indicators and packaging
Supply specifications, packaging, lead time and quality documents are subject to the formal quotation and order confirmation.
| Grade / family | Chemistry | Size and form | Packaging |
|---|---|---|---|
| Specification direction 01EAF foamy-slag injection carbonConfirm grade, applicable standard and guaranteed values before quotation |
| Confirm against the addition method, equipment and order requirements | Confirm pack format, net weight and labels in the quotation and order |
ORDER SPECIFICATION CONFIRMATION
What must be confirmed before this becomes an order specification
Supply specifications, packaging, lead time and quality documents are subject to the formal quotation and order confirmation.
- 01Confirm the product, grade, application and supply scope
- 02Fix guaranteed chemistry, sizing, form and packing in the quotation and order
- 03Agree sampling, test methods, acceptance rules and lot COA fields
- 04Confirm the required TDS, SDS/PSI, labels and delivery documents
SELECTION AND COMPARISON
Compare specification directions by indicators and operating conditions
Supply specifications, packaging, lead time and quality documents are subject to the formal quotation and order confirmation.
01Specification direction
EAF foamy-slag injection carbon
Compare the key indicators below, then confirm grade, guaranteed values, sizing and packing against the operating conditions.
- Key indicators
- 固定碳 / 灰分 / 挥发分S / P / 水分粒度分布 / 输送性
- Size and form
- Confirm against the addition method, equipment and order requirements
- Packaging
- Confirm in the quotation and order
INDUSTRY APPLICATION
Industry, furnace, material and addition point
Confirm the process position before method and quantity calculations; an application relationship for one furnace or material must not be copied to another.
Steelmaking plants
Dedicated injection point during EAF melting and refining
- Furnace / equipment
- Scrap EAF and DRI–EAF
- Material / output
- Steel and slag under an oxygen–carbon injection and foamy-slag practice
Steel foundries
Dedicated injection point during EAF melting and refining
- Furnace / equipment
- Steel-foundry EAF equipped for oxygen-carbon injection and foamy-slag practice
- Material / output
- Steel and slag under an oxygen–carbon injection and foamy-slag practice
APPLICATION METHOD
Use scenarios, method, effect and risk validation
In scrap EAF or DRI–EAF practice, inject into the slag zone through interlocked pneumatic conveying and dedicated injectors coordinated with oxygen input, residual FeO, slag height and furnace pressure. A matched system can support foamy slag and arc shielding; moisture, sizing/volatiles mismatch or injection faults can cause plugging, blowback, dust and CO-reaction risk. Verify with slag, energy, metal-recovery and safety records; do not treat it as an ordinary final-carbon recarburizer.
- 01Confirm steel grade, process point, equipment, initial state, process objective and prohibited conditions
- 02Check the actual SKU, lot COA, TDS, SDS/PSI and site history
- 03Run a small site trial from mass/heat balances or the equipment window without copying a fixed cross-plant dose
- 04Resample or record slag, steel, temperature, equipment response, defects and performance before approval, correction or stop
PROBLEM AND SOLUTION
From operating objective to effect verification
Each application explains the role, method, quantity principle and risk boundary; the final proposal is confirmed against operating conditions and lot documents.
01
Steelmaking plants
Dedicated injection point during EAF melting and refining
- Furnace / equipment
- Scrap EAF and DRI–EAF
- Material / output
- Steel and slag under an oxygen–carbon injection and foamy-slag practice
- Method
- Inject into the slag zone through interlocked pneumatic conveying and dedicated injectors under the oxygen–carbon balance, continuously observing slag height, blowback and furnace pressure.
- Quantity determination
- Determine from charge, residual FeO, oxygen input, foamy-slag objective, lot fixed carbon and site carbon-efficiency trials; do not copy a recarburizer dose.
Expected effects
- Can help form and maintain foamy slag when the oxygen–carbon balance and injection system are matched
Limits and risks
- Sizing, volatiles, moisture or injection mismatch can cause line blockage, blowback, dust, uncontrolled CO reaction or variable carbon efficiency
02
Steel foundries
Dedicated injection point during EAF melting and refining
- Furnace / equipment
- Steel-foundry EAF equipped for oxygen-carbon injection and foamy-slag practice
- Material / output
- Steel and slag under an oxygen–carbon injection and foamy-slag practice
- Method
- Inject into the slag zone through interlocked pneumatic conveying and dedicated injectors under the oxygen–carbon balance, continuously observing slag height, blowback and furnace pressure.
- Quantity determination
- Determine from charge, residual FeO, oxygen input, foamy-slag objective, lot fixed carbon and site carbon-efficiency trials; do not copy a recarburizer dose.
Expected effects
- Can help form and maintain foamy slag when the oxygen–carbon balance and injection system are matched
Limits and risks
- Sizing, volatiles, moisture or injection mismatch can cause line blockage, blowback, dust, uncontrolled CO reaction or variable carbon efficiency
STORAGE & SAFETY
Storage, handling and risk
- Keep dry and control combustible dust; the injection system requires grounding, pressure relief, interlocks and protection against flashback/blowback.
This section does not replace the company's final SDS/PSI or the plant safety procedure.
REFERENCE AND ORDER BOUNDARY
Use industry references to understand, then order documents to confirm
Supply specifications, packaging, lead time and quality documents are subject to the formal quotation and order confirmation.
DOCUMENTS & MEDIA
Images, TDS, SDS and COA
Document availability depends on the product, lot, destination market and order agreement.
TDS
Confirms product identity, guaranteed indicators, sizing, form and packing.
SDS / PSI
Confirms storage, handling, protection and market-specific safety information.
COA
Links a specific lot to test items, results, methods and issue information.
INDUSTRY TECHNICAL REFERENCES
Selected external reference material
The following items come from licensed public media or original producer websites and explain similar products or typical processes only. They are not Jinsheng photographs, TDS, SDS or lot COA and create no supply commitment.
COA field template (not a certificate)
A blank structure for lot, chemistry, sizing, method, disposition and issue data. It contains no test result and cannot be used for delivery.
Jinsheng blank COA field template · 2026-08-14Open field template ↗SOURCES
Public references and verification dates
- Primetals EAF oxygen and carbon injection technology ↗Manufacturer source · 2026-08-19
- Danieli EAF injection-carbon application example ↗Manufacturer source · 2026-08-19
Public sources supplement general facts; they do not replace Jinsheng's formal product specification, TDS or lot COA.
INQUIRY PREPARATION
Prepare these operating conditions for a more precise technical response
Please provide the specification, quantity, destination, and contact information.
Already includedAX-EAF-INJECTION-CARBONEAF foamy-slag injection carbon
- 01Target industry, steel grade or casting material
- 02Furnace type, equipment, melt weight and current operating practice
- 03Measured chemistry, target chemistry and permitted residuals
- 04Planned addition point, temperature, slag and stirring conditions
- 05Current product, addition, recovery or operating-issue record
- 06Required size, form, packaging, quantity and destination
- 07Available melt analysis, microscopy, photographs or trial results
TECHNICAL AND QUOTATION CONSULTATION
Send the operating conditions for human review
Domestic inquiries are handled by the Domestic Sales Department and international inquiries by the International Sales Department. Price, availability and lead time are confirmed for each inquiry based on specification, quantity and delivery location.