High-purity solid calcium carbide (CaC2) engineered for continuous industrial acetylene gas production and steelmaking desulfurization. Features high gas yield (≥295 L/kg), controlled moisture content, and standardized lump sizes packaged in hermetically sealed steel drums to ensure safe transit and long shelf life.
Our heavy-duty industrial solid calcium carbide (CaC2) is engineered specifically for steel mills, iron foundries, and metallurgical refining plants. Manufactured via high-temperature electric arc furnace smelting of select high-purity coke and quicklime, our calcium carbide serves as an exceptionally efficient deoxidizing and desulfurizing agent in hot metal pretreatment, torpedo cars, and ladle furnace (LF) refining processes.
Designed for global steel plant procurement managers and metallurgical process engineers, our solid calcium carbide rapidly reacts with dissolved sulfur in molten iron to form stable calcium sulfide (CaS) slag. Its controlled reactivity, low moisture content, and standardized lump size distribution minimize temperature loss, improve slag fluidity, and ensure predictable desulfurization efficiency to produce clean, high-grade steel alloys.
Our export-grade metallurgical calcium carbide conforms to strict international quality benchmarks (ISO 9001 / ASTM standards), ensuring stable performance in secondary metallurgy:
| Technical Parameter | Standard Metallurgical Grade | Premium Deoxidation Grade | Testing Standard / Method |
| Chemical Formula / CAS No. | CaC2 / 75-20-7 | CaC2 / 75-20-7 | ISO / ASTM Standard |
| Purity (CaC2 Content) | ≥80.0% | ≥90.0% | Chemical Titration |
| Gas Yield (Acetylene Equivalent) | ≥280L/kg | ≥295 L/kg (at 20℃, 101.3 kPa) | Volumetric Displacement |
| Free Carbon Content | ≤1.5% | ≤1.0% | Gravimetric Analysis |
| Phosphorus (P) Impurity | ≤0.08% | ≤0.05% | ICP-OES / XRF |
| Sulfur (S) Impurity | ≤0.15% | ≤0.10% | Combustion-Infrared |
| Standard Size Fractions | 0–2 mm/ 2–7 mm/ 7–15 mm | Customized Injection Sizing | Mechanical Mesh Sieving |
| UN Dangerous Goods Class | UN 1402, Class 4.3 | UN 1402, Class 4.3 | IMDG Regulation |
High Desulfurization Efficiency & Sludge Control:
Injecting high-reactivity solid calcium carbide into hot metal ladles achieves deep desulfurization (S≤0.005%). The strong chemical affinity between calcium and sulfur ensures rapid slag separation without causing re-sulfurization during tapping.
Effective Deoxidation in Ladle Refining:
In secondary steelmaking, our product serves as a potent deoxidizer. By reducing FeO and MnO in furnace slag, it optimizes alloy addition yield, prevents oxide inclusions, and enhances the overall mechanical toughness and fatigue resistance of finished steel products.
Optimized Particle Sizing for Automated Injection:
To accommodate pneumatic lance injection systems and automatic batch feeders, our solid calcium carbide is available in tightly controlled granules and lump sizes. Minimal dust fines prevent hopper bridging, ensuring uniform feeding velocity and reduced equipment wear.
Thermal Economy & Reduced Refractory Wear:
Exothermic reaction dynamics during slag reduction help maintain ladle bath temperature. This minimizes the electrical power required for re-heating in ladle furnaces (LF) and extends refractory lining service life.
Hot Metal Pretreatment (KR System & Injection Lances): Primary desulfurizing agent injected into blast furnace hot metal ladles prior to basic oxygen furnace (BOF) converting.
Ladle Furnace (LF) Slag Conditioning: Deoxidizes refining slag, improves synthetic slag fluidity, and accelerates inclusion flotation in clean steelmaking.
Iron Foundry Cupola Processing: Used in grey iron and ductile iron foundries to adjust carbon units, lower melt sulfur levels, and boost silicon recovery.
Chemical Intermediate Feedstock: Serves as the fundamental raw material for continuous acetylene gas generation, PVC monomer production, and calcium cyanamide chemical synthesis.
Handling calcium carbide requires strict adherence to international safety protocols regarding water-reactive substances. We implement heavy-duty, moisture-proof logistics solutions for safe global sea freight:
Hermetically Sealed Steel Drum Packaging: Supplied in 50kg or 100kg steel drums with reinforced corrugated rings, sealed under positive nitrogen pressure to completely isolate ambient humidity during ocean transit.
Flexible Intermediate Bulk Containers (FIBC) / Big Bags: Heavy-duty, water-proof woven bulk bags equipped with inner aluminum foil liners for high-volume automated steel plant handling.
Global Shipping Compliance: Fully compliant with UN 1402 dangerous goods classification (Class 4.3). Every export batch is accompanied by an official Certificate of Analysis (COA), Safety Data Sheet (SDS/MSDS), and REACH compliance declaration.
Custom OEM & Bulk Contract Terms: Flexible trade terms including FOB, CFR, and CIF with customized drum branding and multilingual hazard labeling available for large contract orders.
We supply factory-direct contract volumes to integrated steel mills, foundry groups, and international chemical traders worldwide. Contact our metallurgical sales team today to request technical data sheets, MSDS documentation, or a competitive bulk pricing proposal.
