NEW OCEAN GROUP - Your trusted calcium carbide supplier since 2006, specializing in high-purity calcium carbide lumps for steelmaking and acetylene generation. Our 50-200mm lumps offer superior slow-release performance with 82-85% CaC₂ content.
Calcium carbide lumps are solid chunks of CaC₂ typically ranging from 25mm to 200mm in size. Compared to powdered or granular forms, our calcium carbide lumps provide:
1.Slower reaction rate - Ideal for continuous acetylene supply
2.Lower dust content - Reduces material loss during transport
3.Better storage stability - Less moisture sensitivity than powders
Technical Note: 50-80mm is the most popular size for industrial applications.
| Parameter | 50-80mm Lumps | 80-120mm Lumps | 120-200mm Lumps |
| Acetylene Yield | 280-290L/kg | 270-280L/kg | 260-270L/kg |
| Reaction Time | 8-12 minutes | 12-18 minutes | 18-25 minutes |
| Recommended Use | Steel mills | Large gas plants | Extra-long duration |
Our calcium carbide lumps (50-80mm) are widely used in:
Ladle furnace treatment
Continuous casting processes
Achieves <0.005% sulfur content
Compared to calcium carbide powder, lumps provide:
More stable gas pressure
Longer generator lifespan
Lower maintenance costs
Used in manufacturing:
Cyanamide (CaCN₂)
Calcium hydroxide byproducts
Organic sulfur compounds
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