Our 50-80mm Industrial Grade Calcium Carbide is specially screened for high uniformity and consistent performance in industrial applications. Delivering a guaranteed gas yield of $\ge 295\text{ L/kg}$, this product is ideal for large-scale acetylene production and steelmaking processes. Packaged in UN-approved 50kg/100kg sealed steel drums with nitrogen purging to prevent moisture ingress.
Our Calcium Carbide 50-80mm lump size is a premium industrial-grade chemical compound (CaC2) engineered specifically for high-efficiency acetylene gas generation and metallurgical steelmaking applications. Manufactured via the high-temperature electro-thermal reduction of high-purity quicklime and carbon materials, our product delivers exceptional chemical stability, uniform granularity, and reliable reactivity for large-scale industrial operations.
As an ISO-certified manufacturer and global exporter, we specialize in providing bulk buyers, chemical distributors, gas production plants, and steel mills with a dependable supply of high-grade Calcium Carbide tailored to international safety and quality standards.

| Parameter / Feature | Specification Details |
| Chemical Formula | CaC2 |
| CAS Number | 75-20-7 |
| Size / Granularity | 50–80 mm (Sieved for uniform consistency) |
| Gas Yield Rate | ≥295L/kg (Tested at 20℃ and 101.3kPa |
| Phosphine (PH3) Content | ≤0.08% (v/v) |
| Hydrogen Sulfide (H2S) Content | ≤0.15% (v/v) |
| Hazardous Class | Class 4.3 (Dangerous when wet) |
| Packaging Options | 50 kg / 100 kg new UN-certified sealed steel drums with nitrogen purging |

The 50–80 mm lump dimension represents the most widely requested specification for industrial acetylene gas generation. Selecting the optimal particle size directly impacts operational efficiency and equipment longevity:
Continuous & Smooth Feeding: The uniform 50-80mm sizing prevents bridging, clogging, and jamming in automatic carbide-to-water acetylene generators.
Controlled Reaction Kinetics: Compared to smaller carbide fractions, the 50-80mm lumps offer a stable, moderate hydrolysis rate, minimizing sudden pressure spikes and localized overheating inside the generator reactor.
Reduced Dust & Material Loss: Screened to strict tolerances, our 50-80mm supply features low fine-particle content, ensuring maximum usable yield per metric ton and reduced sludgy residue in wastewater treatment units.

Industrial Acetylene Gas Production:
Serves as the vital raw material for generating high-purity acetylene gas used extensively in oxy-acetylene metal cutting, welding, flame hardening, and chemical synthesis (such as PVC and vinyl monomer production).
Steelmaking & Ladle Metallurgy Desulfurization:
Functions as a potent desulfurizing agent and deoxidizer in ladle refining furnaces (LRF). It aids in rapid slag formation, sulfur removal, and temperature maintenance in molten steel processing.
Chemical Intermediate Synthesis:
Utilized in the production of calcium cyanamide (lime nitrogen), synthetic rubber, organic solvents, and specialized chemical derivatives.

Safety and moisture isolation are paramount when transporting solid chemical reagents. Our Calcium Carbide products are packed in strict compliance with UN Dangerous Goods Regulations:
Packaging Structure: Heavy-duty, hermetically sealed 50kg or 100kg brand-new iron steel drums.
Nitrogen Protection: Each drum undergoes a nitrogen flushing process prior to sealing to replace ambient oxygen and humidity, preventing premature degradation during long sea transits.
Custom OEM Markings: Custom color painting, batch numbering, side marks, and danger warnings (Class 4.3 labels) can be applied per client specifications.
Documentation & Compliance: Every shipment is accompanied by a Material Safety Data Sheet (MSMS/SDC), Certificate of Analysis (COA), Commercial Invoice, Packing List, and UN Packaging Certification. Third-party pre-shipment inspection by SGS, Bureau Veritas (BV), or Intertek is available upon request.

Whether you operate an acetylene gas cylinder filling plant or manage procurement for a metallurgical foundry, we offer flexible FOB, CFR, and CIF pricing models backed by robust supply chain logistics.
Contact our export technical team today to request a customized quote, batch COA samples, or volume pricing for your upcoming shipment of high-yield Calcium Carbide 50-80mm.