magnetic hematite

When sourcing magnetic hematite, buyers must focus on magnetic flux density (measured in Gauss) and surface finish. High-quality industrial or jewelry-grade hematite should have a uniform dark grey to black metallic luster without visible cracks or pitting. For therapeutic or jewelry applications, ensure the remanence (Br) meets your specific requirements, and verify that the polishing process uses non-toxic compounds to prevent skin irritation.

Compliance is critical, especially for items intended for jewelry or wellness. You must ensure products are Lead-free and Cadmium-free to meet REACH (EU) and CPSIA (US) regulations. If the product is marketed for health benefits, it may fall under Medical Device Class I regulations in certain jurisdictions, requiring specific labeling and registration. Always request a Material Safety Data Sheet (MSDS) to confirm the chemical composition.

Magnetic hematite is a ceramic-like material and is inherently brittle. To ensure durability, request drop tests from the supplier to evaluate shatter resistance. For magnetic stability, confirm the Curie temperature of the material; high-quality magnetic hematite should maintain its magnetic properties under standard environmental temperatures (up to 80°C) without significant demagnetization.

Magnetic hematite is versatile, primarily used in Magnetic Therapy Jewelry (bracelets, necklaces), Industrial Separators, and Educational Kits. In the fashion sector, it is valued for its weighty feel and metallic sheen, while in the wellness sector, it is sought for its perceived biomagnetic properties. Understanding the end-use is vital for determining the required magnetic strength (Gauss level).

Shipping magnets internationally requires strict adherence to IATA (Air) and IMO (Sea) regulations. Strong magnetic fields can interfere with aircraft navigation systems. You must ensure the supplier uses Magnetic Shielding Packaging (iron sheets or specialized foam) so that the external magnetic field strength is below 0.00525 gauss at 15 feet, or it must be declared as Class 9 Dangerous Goods.

To ensure transaction security, utilize the Secured Trading Services on Made-in-China.com. This protects your payment until the goods are confirmed to meet the agreed-upon quality. Additionally, hire a third-party inspection agency (like SGS or Intertek) to perform a Pre-Shipment Inspection (PSI) to verify the Gauss rating and quantity before the final balance is paid.

Negotiation should be based on volume and coating types. Prices for magnetic hematite fluctuate based on the cost of raw iron oxide and processing energy. Ask for a breakdown of the electroplating costs (e.g., rainbow, gold, or silver coatings), as these add significant value. For bulk orders exceeding 10,000 units, aim for a 10-20% discount compared to sample pricing by leveraging long-term supply contracts.

Check the Harmonized System (HS) Code (typically under Chapter 85 for permanent magnets or Chapter 71 for imitation jewelry). Be aware of anti-dumping duties that some countries may impose on Chinese ceramic magnets. Always confirm the Country of Origin (COO) certificates are provided to benefit from any applicable Free Trade Agreements (FTAs).