What it is
Used to adjust carbon in steel or iron; selection must reflect feedstock, furnace, absorption conditions and limits on sulfur, nitrogen and ash.
Metallurgical charge materials · Recarburizers
Carbon raiser
Used to adjust carbon in steel or iron; selection must reflect feedstock, furnace, absorption conditions and limits on sulfur, nitrogen and ash.
Product codeCH-RECARB
Industry application3
Key indicatorsProduct master · Fixed C / ash / volatile matter / moisture · S / N / H / P / trace elements · Feedstock / graphitization / dissolution
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
- Adjustment of carbon content
- Carbon-equivalent control
- Charge-balance correction
Where it fits
- Charging and melting, or reviewed final-carbon trimming; injection carbon and foaming-slag carbon require separate SKUs
- Charging, mid-melt and pre-tap trimming
- Charging, melting and pre-tap adjustment
Boundary not to miss
- Absorption, S, N, ash and flotation losses change the outcome
- Different feedstock types are not interchangeable on fixed carbon alone
- High ash or poor dissolution may increase slag and absorption variation; review S, N and other residuals separately against the material and defect risk
SELECTION BOUNDARY
Start with the selection boundary
“Carbon raiser” is a product family, not one SKU. Before launch, define the actual graphitized, CPC, CAC or other offerings and fix carbon, S, N, ash, volatile matter, moisture, sizing and test method for each.
PRODUCT MANUFACTURING
Product manufacturing process
Carbon raisers may be produced from graphitised petroleum coke, calcined petroleum coke or calcined anthracite. The route affects fixed carbon, sulfur, nitrogen, ash, porosity and absorption, so the routes must not be merged into one SKU.
- 01Inspect raw-material source and lot
- 02Calcine or graphitise
- 03Cool, crush and screen
- 04Blend, sample and test indicators
- 05Moisture-protected packing
SPECIFICATIONS & PACKAGING
Grades, specifications, indicators and packaging
Key indicators include fixed carbon, ash, volatiles, S, N, moisture, size and absorption. Absorption is a furnace/practice validation result, not a fixed material guarantee.
- 01First distinguish GPC, CPC or CAC route
- 02Check FC, S, N, ash and moisture
- 03Match charge mix and sizing
- 04Confirm pack, storage and lot traceability
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 01Carbon raiserConfirm 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 |
| Specification direction 02Carbon raiserConfirm 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 |
| Specification direction 03Carbon raiserConfirm 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
Carbon raiser
Compare the key indicators below, then confirm grade, guaranteed values, sizing and packing against the operating conditions.
- Key indicators
- Product masterFixed C / ash / volatile matter / moistureS / N / H / P / trace elementsFeedstock / graphitization / dissolution
- Size and form
- Confirm against the addition method, equipment and order requirements
- Packaging
- Confirm in the quotation and order
02Specification direction
Carbon raiser
Compare the key indicators below, then confirm grade, guaranteed values, sizing and packing against the operating conditions.
- Key indicators
- Product masterFixed C / ash / volatile matter / moistureS / N / H / P / metalsCoke source / calcination / density / dissolution
- Size and form
- Confirm against the addition method, equipment and order requirements
- Packaging
- Confirm in the quotation and order
03Specification direction
Carbon raiser
Compare the key indicators below, then confirm grade, guaranteed values, sizing and packing against the operating conditions.
- Key indicators
- Product masterFixed C / ash / volatile matter / moistureS / N / H / P / trace elementsCoal source / GCA or ECA / calcination / absorption
- 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
Charging and melting, or reviewed final-carbon trimming; injection carbon and foaming-slag carbon require separate SKUs
- Furnace / equipment
- EAF; tapping/LF trimming only under an approved practice
- Material / output
- EAF steels and grades requiring carbon correction
Steel foundries
Charging, mid-melt and pre-tap trimming
- Furnace / equipment
- EAF and coreless induction furnace
- Material / output
- Carbon and alloy cast steels requiring carbon adjustment
Iron foundries
Charging, melting and pre-tap adjustment
- Furnace / equipment
- Induction and duplex routes; cupola use is practice-dependent
- Material / output
- Base iron for grey, ductile, CGI and alloyed cast iron
APPLICATION METHOD
Application method and effect validation
Calculate from the required net carbon increase, fixed carbon and site absorption. Charging, melting and final trimming use different practices; injection carbon and foaming-slag carbon require separate SKUs.
- 01Confirm initial/target C and carbon carried by charge
- 02Select product route, size and addition timing
- 03Calculate using a consistent decimal mass-fraction basis
- 04Verify C, S, N and defect risk
- 1Charge addition
- 2Bath addition and stirring
- 3Absorption validation
- 4High-S/N risk warning
The public external reference helps explain a similar product or typical process; it is not evidence of a Jinsheng-owned line, stock or customer site.
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
Charging and melting, or reviewed final-carbon trimming; injection carbon and foaming-slag carbon require separate SKUs
- Furnace / equipment
- EAF; tapping/LF trimming only under an approved practice
- Material / output
- EAF steels and grades requiring carbon correction
- Method
- Add in staged amounts when wetting, dissolution and stirring are favorable; late trimming must avoid flotation and chemistry non-uniformity.
- Quantity determination
- Use decimal mass fractions consistently. General equation: ⟦m_add(kg) ≈ m_melt(t) × 1,000 × Δw_C ÷ (w_C,product × η_C)⟧. The net-increase term means target C minus predicted C after charge carbon and decarburisation; enter all mass fractions as decimals, for example 0.10 wt.% as 0.001. Review S/N limits separately.
Expected effects
- Adds target carbon and corrects charge carbon balance
Limits and risks
- Absorption, S, N, ash and flotation losses change the outcome
02
Steel foundries
Charging, mid-melt and pre-tap trimming
- Furnace / equipment
- EAF and coreless induction furnace
- Material / output
- Carbon and alloy cast steels requiring carbon adjustment
- Method
- Choose charge layering and timing from the feed mix and target carbon, allowing enough time for dissolution, sampling and recheck.
- Quantity determination
- Calculate from target carbon difference, fixed carbon and measured furnace-specific absorption.
Expected effects
- Establishes target carbon content
Limits and risks
- Different feedstock types are not interchangeable on fixed carbon alone
03
Iron foundries
Charging, melting and pre-tap adjustment
- Furnace / equipment
- Induction and duplex routes; cupola use is practice-dependent
- Material / output
- Base iron for grey, ductile, CGI and alloyed cast iron
- Method
- During charging, maximize contact with the metallic charge; late trimming requires control of size, bath surface, stirring and remaining holding time.
- Quantity determination
- Calculate from charge carbon, target C/carbon equivalent, fixed carbon and trial-verified absorption. For ductile iron/CGI, also review S, N and anti-nodularising residuals.
Expected effects
- Adjusts carbon and carbon equivalent for a stable base iron
Limits and risks
- High ash or poor dissolution may increase slag and absorption variation; review S, N and other residuals separately against the material and defect risk
STORAGE & SAFETY
Storage, handling and risk
- Keep dry and control dust; feedstock types differ in dissolution, absorption and S/N risk.
- Occupational health and transport information must follow the company's final SDS/PSI.
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.
Published ductile iron melting and treatment video
An Elkem-published ductile iron production and melt-treatment video for understanding addition stages; not a Jinsheng customer site.
Elkem · 2026-08-14Open reference ↗Official ELGRAPH all-grades PSI
Producer safety information for reference to recarburizer safety-data structure; not a Jinsheng SDS.
Elkem · 2026-08-14Open reference ↗Official foundry recarburizer product reference
Elkem's published recarburizer application overview; not a Jinsheng TDS or supply commitment.
Elkem · 2026-08-14Open reference ↗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
- YB/T 192—2015 Carbon raiser for steelmaking ↗Standard · 2026-08-14
- Elkem recarburizer application guidance ↗Manufacturer source · 2026-08-14
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 includedCH-RECARBCarbon raiser
- 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.