Description

Technical Parameters

Product Overview

Recarburizer, also known as carbon additive or carbon raiser, is an essential material in the steelmaking and foundry industries. It is used to adjust the carbon content of molten metal to precise specifications, ensuring consistent mechanical properties and metallurgical quality in the final product.

Our premium recarburizer is manufactured from high-purity carbon materials through advanced calcination and graphitization processes. We offer a range of grades to suit different applications, from general steelmaking to high-performance ductile iron production. With a focus on reliable performance, our recarburizer delivers consistent carbon recovery, low impurity levels, and predictable dissolution behavior.

Product Specifications

Available Grades

Grade	Carbon Content	Sulfur Content	Nitrogen Content	Ash Content	Moisture
Graphitized Petroleum Coke (GPC)	98.5% min	0.05% max	300 ppm max	0.5% max	0.5% max
Calcined Petroleum Coke (CPC)	98.0% min	0.50% max	-	0.8% max	0.5% max
Graphitized Electrode Scrap	99.0% min	0.03% max	100 ppm max	0.3% max	0.5% max
Low Nitrogen Recarburizer	98.5% min	0.05% max	100 ppm max	0.5% max	0.5% max

Physical Specifications

Parameter	Details
Standard Sizes	0–1 mm, 1–3 mm, 1–5 mm, 3–5 mm, 5–8 mm
Custom Sizes	Available upon request
Form	Granules, powder, or briquettes
Appearance	Black granular with metallic luster (graphitized grades)
Packaging	1 MT big bags, 25 kg woven bags, or custom packaging

Carbon Raiser-2

Key Features & Benefits

✓ High Carbon Recovery

Our recarburizer achieves carbon recovery rates of 90–95% under standard steelmaking conditions. This high efficiency translates directly into cost savings-less material is required to achieve target carbon levels, and consistent recovery reduces the need for last-minute adjustments.

✓ Low Impurity Content

Strict control of sulfur, nitrogen, and ash content ensures:

Reduced risk of hydrogen-induced cracking in high-strength steels

Minimal impact on ductility and toughness in cast iron

Cleaner steel with fewer inclusions

✓ Consistent Dissolution

Properly sized granules dissolve predictably in molten metal, allowing operators to achieve target carbon levels reliably. Our graphitized grades offer particularly fast dissolution, ideal for ladle addition and late-stage carbon adjustment.

✓ Customizable Specifications

We offer flexibility in:

Carbon content (from 90% to 99%+)

Particle size (from fine powder to 8 mm granules)

Sulfur and nitrogen levels (standard or low impurity grades)

Packaging (big bags, small bags, or bulk)

Applications

Steelmaking Industry

Recarburizer is widely used in electric arc furnace (EAF) and ladle metallurgy furnace (LMF) operations:

Carbon adjustment to achieve target grade specifications

Improving fluidity of molten steel

Enhancing mechanical properties such as strength and hardness

Foundry Industry

In cast iron production, recarburizer plays a critical role:

Ductile iron: Provides nucleation sites for graphite formation, improving nodularity and mechanical properties

Gray iron: Controls carbon equivalent for optimal casting properties

Reduces chill and promotes uniform microstructure

Other Applications

Production of carbon steel and alloy steel

Friction materials and brake linings

Refractory materials

Carbon raiser for non-ferrous metals

Quality Assurance

We maintain rigorous quality control throughout the production process:

Testing Methods

Carbon Content: Combustion infrared absorption method

Sulfur Content: High-frequency combustion infrared method

Nitrogen Content: Inert gas fusion thermal conductivity method

Ash Content: Gravimetric analysis

Moisture: Drying method

Particle Size: Sieve analysis

Certifications

Mill Test Certificate (MTC) with each shipment

Third-party inspection available (SGS, Bureau Veritas, or similar)

Compliance with ISO 9001 quality management standards

Why Choose Our Recarburizer?

Advantage	Benefit
Premium Raw Materials	High-purity petroleum coke and graphite sources ensure consistent quality
Advanced Processing	Precise calcination and graphitization for optimal crystalline structure
Stable Supply Chain	Reliable production capacity for regular shipments
Technical Support	Metallurgical expertise to help optimize your carbon addition practices
Competitive Pricing	Direct supply model with no intermediaries

Packaging & Shipping

Standard Packaging Options

Package Type	Weight	Application
1 MT Big Bag	1,000 kg	Container loading, easy handling
25 kg Woven Bag	25 kg	Smaller quantities, convenient usage
Custom Packaging	As required	Tailored to specific handling needs