Carbon materials · Recarburizers

Graphitized petroleum coke recarburizer

Aliases: Graphitized carbon raiser · GPC recarburizer (acronym must be disambiguated) · Artificial / synthetic graphite recarburizer (broad market alias)

This page explains the product's principal composition, application directions and inquiry points; confirm the grade, guaranteed indicators, sizing, packing and process fit before quotation.

Steel / iron recarburizingCharge-carbon balance correctionValidated final-carbon trimming

View grades and specifications

Product codeCH-RECARB-GRAPH-PETCOKE

Industry application3

Key indicatorsFeedstock / graphitization route · Fixed C / ash / volatile matter / moisture · S / N / H / P / trace elements · Crystallinity / 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 is

This page explains the product's principal composition, application directions and inquiry points; confirm the grade, guaranteed indicators, sizing, packing and process fit before quotation.

What it does

Steel / iron recarburizing
Charge-carbon balance correction
Validated final-carbon trimming

Where it fits

Batching/charging, melting or pre-tap trimming with sufficient dissolution time
Charging, melting or reviewed pre-tap carbon trimming
Charging, melting or approved final-carbon correction

Boundary not to miss

Moisture, fines, flotation, weak stirring or late addition can vary absorption; S, N, H, ash and residuals may contribute to porosity, shrinkage, slag or microstructure changes
Synthetic/artificial graphites from different sources are not interchangeable by name or fixed carbon alone; high-cleanliness and ultra-low-residual grades require dedicated review
This product is not EAF injection carbon or a foamy-slag carbon source; bulk-recarburizer specifications do not replace injection/conveying specifications

SELECTION BOUNDARY

Start with the selection boundary

Similar names, forms or uses do not make products interchangeable; confirm product identity, specification, application process and order documents separately.

PRODUCT MANUFACTURING

Manufacturing process and identity boundary

A general graphitized-petcoke recarburizer route first verifies petroleum-coke identity and contaminant boundaries, then applies controlled high-temperature graphitization followed by cooling, crushing, classification, abnormal-fines removal, homogenised sampling and lot testing. Graphitization furnace, temperature-time schedule, purification and energy use belong to the actual producer's documents; the page assumes neither Jinsheng-owned production nor a particular proprietary process.

01Verify petcoke source, coke type, lot, contaminants and recycled-feed restrictions
02Apply controlled high-temperature graphitization under producer documents and segregate the lot
03Cool under control and prevent moisture, oil, metal and other-carbon contamination
04Crush, screen, remove abnormal fines and homogenise for the actual SKU
05Sample representatively, test chemistry/sizing/properties and pack against moisture

SPECIFICATIONS & PACKAGING

Grades, RFQ parameters, indicators and documents

Specification selection must confirm product identity, guaranteed chemistry, sizing, form, packing, test method and order use together.

01Confirm the name means graphitized petcoke and remove the GPC/green-petcoke acronym ambiguity
02Fix methods and limits for fixed carbon, ash, volatiles, moisture and S/N/H/P/trace elements
03Agree size distribution, fines, oversize, bulk density and sampling rules
04If crystallinity/graphitization, dissolution or absorption is evaluated, first agree equipment and reporting basis
05Reconcile the TDS, powder SDS/PSI, contract, lot COA and packaging label

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 01Graphitized petroleum coke recarburizerConfirm grade, applicable standard and guaranteed values before quotation	Feedstock / graphitization routeConfirm in inquiry Fixed C / ash / volatile matter / moistureConfirm in inquiry S / N / H / P / trace elementsConfirm in inquiry Crystallinity / graphitization / dissolutionConfirm in inquiry	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

Graphitized petroleum coke recarburizer

Compare the key indicators below, then confirm grade, guaranteed values, sizing and packing against the operating conditions.

Key indicators: Feedstock / graphitization routeFixed C / ash / volatile matter / moistureS / N / H / P / trace elementsCrystallinity / graphitization / dissolution
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.

Iron foundries

Batching/charging, melting or pre-tap trimming with sufficient dissolution time

Furnace / equipment: Coreless induction furnaces and validated duplex-melting routes
Material / output: Base iron for grey, ductile, CGI and reviewed alloyed cast iron

Steel foundries

Charging, melting or reviewed pre-tap carbon trimming

Furnace / equipment: EAF or coreless induction furnace
Material / output: Cast steel with defined carbon target, S/N/H/ash limits and cleanliness requirements

Steelmaking plants

Charging, melting or approved final-carbon correction

Furnace / equipment: EAF; ladle/LF trimming only under an approved practice
Material / output: Steel grades whose carbon source and residual-element budgets permit this product

APPLICATION METHOD

Application, calculation, effect and risk validation

Prefer charging and melting in induction furnaces or EAFs so metallic contact, wetting, dissolution and stirring are established; make only small final-carbon trims where sufficient dissolution and resampling time remains. A graphitized product may be used in reviewed grey, ductile and compacted-graphite iron, cast steel or EAF steel, but the material name alone does not guarantee absorption, graphite structure, defects or properties.Use decimal mass fractions for the starting estimate: ⟦m_add(kg) ≈ M_melt(t) × 1,000 × Δw_C ÷ (w_C,product × η_C)⟧. Δw_C must deduct charge-carbon carry-in and predicted oxidation/decarburisation; w_C,product comes from the actual lot; η_C must come from a site trial on the same furnace, sizing and addition point. The equation does not replace heat-by-heat resampling or create a fixed kg/t commitment.

01Confirm furnace, metal grade, charge carbon, initial/target C and S/N/H/ash budgets
02Make the starting mass balance using actual-lot fixed carbon and same-furnace historical absorption
03Add at the approved charge layer or melting point while controlling sizing, bath surface, temperature and stirring
04Allow dissolution time, resample C and constrained elements, and observe slag, gas and microstructure risks
05Use heat history to correct η_C, the addition window and stop criteria; never copy a fixed dose across furnaces

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.

Iron foundries

Batching/charging, melting or pre-tap trimming with sufficient dissolution time

Furnace / equipment: Coreless induction furnaces and validated duplex-melting routes
Material / output: Base iron for grey, ductile, CGI and reviewed alloyed cast iron
Method: Prefer good contact with clean metallic charge and establish furnace-specific sequencing, stirring, temperature and holding windows; use only validated small late trims.
Quantity determination: Use decimal mass fractions consistently. General estimate: ⟦m_add(kg) ≈ M_melt(t) × 1,000 × Δw_C ÷ (w_C,product × η_C)⟧. Δw_C is the net carbon increase still required after charge-carbon carry-in and predicted oxidation/decarburisation; enter product carbon fraction w_C,product and the measured furnace-, size- and stage-specific carbon absorption η_C as decimals. The equation is only a starting estimate; heat-by-heat sampling and plant trials must correct the amount.

Expected effects

Corrects carbon and carbon equivalent when measured absorption is validated
Supports repeatable carbon balance through controlled feedstock, sizing and practice

Limits and risks

Moisture, fines, flotation, weak stirring or late addition can vary absorption; S, N, H, ash and residuals may contribute to porosity, shrinkage, slag or microstructure changes

Steel foundries

Charging, melting or reviewed pre-tap carbon trimming

Furnace / equipment: EAF or coreless induction furnace
Material / output: Cast steel with defined carbon target, S/N/H/ash limits and cleanliness requirements
Method: Select timing from measured charge carbon, oxidation loss, slag condition and remaining melt time; ensure complete dissolution and resample.
Quantity determination: Use decimal mass fractions consistently. General estimate: ⟦m_add(kg) ≈ M_melt(t) × 1,000 × Δw_C ÷ (w_C,product × η_C)⟧. Δw_C is the net carbon increase still required after charge-carbon carry-in and predicted oxidation/decarburisation; enter product carbon fraction w_C,product and the measured furnace-, size- and stage-specific carbon absorption η_C as decimals. The equation is only a starting estimate; heat-by-heat sampling and plant trials must correct the amount.

Expected effects

Establishes the resample-confirmed target carbon content

Limits and risks

Synthetic/artificial graphites from different sources are not interchangeable by name or fixed carbon alone; high-cleanliness and ultra-low-residual grades require dedicated review

Steelmaking plants

Charging, melting or approved final-carbon correction

Furnace / equipment: EAF; ladle/LF trimming only under an approved practice
Material / output: Steel grades whose carbon source and residual-element budgets permit this product
Method: Avoid strongly oxidising conditions that impair carbon absorption; add in stages from melt analysis, slag, temperature, stirring and remaining time, then resample.
Quantity determination: Use decimal mass fractions consistently. General estimate: ⟦m_add(kg) ≈ M_melt(t) × 1,000 × Δw_C ÷ (w_C,product × η_C)⟧. Δw_C is the net carbon increase still required after charge-carbon carry-in and predicted oxidation/decarburisation; enter product carbon fraction w_C,product and the measured furnace-, size- and stage-specific carbon absorption η_C as decimals. The equation is only a starting estimate; heat-by-heat sampling and plant trials must correct the amount.

Expected effects

Closes the net carbon deficit in the mass balance

Limits and risks

This product is not EAF injection carbon or a foamy-slag carbon source; bulk-recarburizer specifications do not replace injection/conveying specifications

STORAGE & SAFETY

Storage, handling and risk

Keep dry and free from foreign matter and control combustible dust; fine-material transfer, collection, grounding and housekeeping follow the final SDS/PSI and site explosion-risk assessment.
Wet, caked or unidentified recycled graphite must not be introduced directly into molten metal.

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.

Blank COA template

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 4403—2014 Graphitized carbon raiser, official record ↗Standard · 2026-08-21
JB/T 14236—2023 Recarburizer for foundry, official record ↗Standard · 2026-08-21
YB/T 192—2015 Carbon raiser for steelmaking, official record ↗Standard · 2026-08-21
Elkem: high-temperature electrically calcined synthetic graphite and recarburizing use ↗Manufacturer source · 2026-08-21
Elkem: recarburizer use, dissolution and casting-defect risks ↗Manufacturer source · 2026-08-21

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-RECARB-GRAPH-PETCOKEGraphitized petroleum coke recarburizer

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.