Graphite briquette

When evaluating Graphite Briquettes, the most critical factor is the Fixed Carbon content, which typically ranges from 80% to 98%. Buyers must also strictly monitor the Sulfur content (ideally <0.05%) and Ash content to prevent impurities in the final steel or iron melt. Additionally, verify the moisture levels (should be <1%) to avoid hydrogen pick-up and potential explosions during furnace charging.

The specific gravity and compression strength are vital; briquettes must be dense enough to sink through the slag layer and enter the molten metal for efficient carbon recovery. High-quality briquettes should withstand a drop test from 2 meters without excessive crumbling to ensure they remain intact during automated charging and transport, reducing material wastage and dust pollution.

They are primarily used as carburizers (recarburizers) in Electric Arc Furnace (EAF) and Ladle Furnace (LF) steelmaking to adjust carbon levels. They are also widely used in foundries for gray iron or ductile iron production. Because of their uniform shape, they are ideal for automated weighing and feeding systems, providing more consistent results than loose graphite powder.

Suppliers should provide an ISO 9001 certification for quality management. For international trade, a third-party inspection report (such as SGS or Intertek) is essential to verify the chemical composition (C, S, P, Ash, Volatile matter). Ensure the product complies with REACH regulations if exporting to the EU, and check for Material Safety Data Sheets (MSDS) to ensure safe handling and storage.

Always request a pre-shipment inspection (PSI). Since graphite is a bulk commodity, quality can vary between batches. Use Made-in-China.com's secured payment and inspection services to ensure the balance is only released after the lab results confirm the Fixed Carbon and Sulfur specs match the agreed contract.

Graphite pricing is highly sensitive to raw material costs and energy policies. Negotiate based on annual volume rather than spot orders to secure stable pricing. For new suppliers, start with a trial order of 1-5 tons to test the recovery rate in your furnace before committing to full container loads (FCL).

Graphite Briquettes are heavy and can generate dust. Specify Jumbo Bags (1mt capacity) with an inner plastic liner to prevent moisture absorption and leakage. Ensure the bags have UV protection if they will be stored outdoors. For sea freight, confirm the Incoterms (usually FOB or CIF) and ensure the vessel is equipped to handle bulk industrial minerals.

Prioritize Audited Suppliers on Made-in-China.com, as these manufacturers have undergone on-site verification of their production capacity and business legitimacy. Always use Escrow-based payment terms or Letters of Credit (L/C) for large-scale industrial orders to protect against non-delivery or sub-standard goods.