Carbon Raiser, also known as Recarburizer or Carbon Additive, is a critical metallurgical material used to increase carbon content during steelmaking and foundry processes. It plays a key role in controlling chemical composition, improving melt quality, and ensuring consistent mechanical properties of finished metal products.
Our Carbon Raiser is manufactured from carefully selected carbon-rich raw materials and processed under strict quality control to deliver high fixed carbon, low sulfur, low ash, and excellent carbon absorption efficiency, making it suitable for a wide range of iron and steel applications.
(1) High fixed carbon content
(2) Low sulfur content
(3) The carburization effect is stable
(4)High carbon absorption rate
Electric furnace melting carburizing, cast steel carburizing, cast iron carburizing
|
Model |
Chemical composition |
Remarks |
|||
|
C% |
S% |
Ash content |
Water content |
||
|
TZ-A |
≥98.5 |
≤0.05 |
-- |
-- |
Graphitized |
|
TZ-B |
≥98 |
≤0.05 |
-- |
-- |
Graphite coke |
|
TZ-C |
≥90 |
≤0.2 |
-- |
-- |
Coal |
Carbon Raiser, also known as Recarburizer or Carbon Additive, is a critical metallurgical material used to increase carbon content during steelmaking and foundry processes. It plays a key role in controlling chemical composition, improving melt quality, and ensuring consistent mechanical properties of finished metal products.
Our Carbon Raiser is manufactured from carefully selected carbon-rich raw materials and processed under strict quality control to deliver high fixed carbon, low sulfur, low ash, and excellent carbon absorption efficiency, making it suitable for a wide range of iron and steel applications.
Carbon Raiser is a carbonaceous additive introduced into molten iron or steel to compensate for carbon loss during melting, refining, or remelting. It ensures precise carbon adjustment, which directly affects hardness, strength, wear resistance, and casting quality.
Compared with traditional carburizing methods, modern Carbon Raiser offers:
Faster dissolution in molten metal
Higher carbon recovery rate
Lower impurity introduction
More stable metallurgical performance
During steelmaking and casting, carbon is inevitably lost due to oxidation, slag reactions, and high-temperature exposure. Insufficient carbon can lead to:
Reduced strength and hardness
Poor machinability
Inconsistent microstructure
Increased rejection rates
Using a high-quality Carbon Raiser helps metallurgical operators:
Accurately adjust carbon content
Improve molten metal cleanliness
Reduce alloy consumption costs
Achieve repeatable production quality
Different metallurgical processes require different carbon sources. We offer multiple grades of Carbon Raiser to meet diverse operational needs:
High fixed carbon content
Low moisture and volatile matter
Widely used in steelmaking and foundries
Ultra-high carbon content
Excellent carbon absorption rate
Ideal for high-grade steel and ductile iron
Cost-effective solution
Stable chemical composition
Suitable for general foundry applications
Tailored particle size distribution
Controlled impurity levels
Designed according to specific furnace and process requirements
| Parameter | Standard Range |
| Fixed Carbon | 92% – 99% |
| Sulfur (S) | ≤ 0.05% |
| Ash | ≤ 1.5% |
| Volatile Matter | ≤ 1.0% |
| Moisture | ≤ 0.5% |
| Particle Size | 0–1 mm / 1–3 mm / 1–5 mm / Customized |
Specifications can be customized based on application and customer requirements.
Optimized particle structure allows rapid dissolution and efficient carbon transfer into molten metal, minimizing material waste.
Strict raw material selection and processing ensure minimal negative impact on steel purity and downstream mechanical properties.
Consistent chemical composition supports repeatable metallurgical outcomes and better process control.
Suitable for different furnace types, feeding systems, and process stages.
Our Carbon Raiser is widely used in:
Steelmaking (Electric Arc Furnace, Induction Furnace)
Gray Iron and Ductile Iron Foundries
Cast Steel Production
Metallurgical Refining Processes
Carbon Content Adjustment During Remelting
Whether used during initial melting or late-stage carbon correction, our products deliver reliable performance.
Selecting the correct Carbon Raiser depends on several factors:
Target carbon content
Furnace type and temperature
Desired carbon absorption rate
Allowable sulfur and impurity levels
Cost-performance balance
Our technical team can assist in selecting or customizing the optimal grade for your specific process.
25 kg bags
1 MT jumbo bags
Bulk supply available
Packaging can be customized to meet handling, storage, and transportation needs.
Each batch of Carbon Raiser undergoes strict quality inspection, including:
Chemical composition analysis
Particle size verification
Moisture and ash content testing
Test reports and material datasheets are available upon request.
They refer to the same type of product. “Carbon Raiser” emphasizes carbon content adjustment, while “Recarburizer” highlights its role in restoring lost carbon.
It can be added directly into the furnace or ladle, depending on the process stage and desired carbon recovery efficiency.
Smaller particles dissolve faster, while larger particles provide more controlled carbon release. Selection depends on furnace type and process conditions.
In many applications, high-quality graphitized carbon raiser can partially or fully replace natural or synthetic graphite.
Looking for a reliable Carbon Raiser supplier with consistent quality and competitive pricing?
Request a technical datasheet
Get a customized specification
Ask for a quotation
👉 Contact us today to discuss your metallurgical requirements.
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