Metal card

The most common materials are Stainless Steel (304 or 316 grade), Brass, and Aluminum. For premium applications, 304 Stainless Steel is the industry standard due to its corrosion resistance and durability. You should specify the thickness, typically ranging from 0.3mm to 0.8mm (0.8mm is standard credit card thickness). Ensure the supplier uses precision chemical etching or laser cutting to achieve clean, burr-free edges.

To ensure a premium feel, look for PVD (Physical Vapor Deposition) plating, which offers superior wear resistance compared to standard electroplating. Popular finishes include Matte Black, Brushed Gold, and Rose Gold. For logos, laser engraving provides a permanent mark, while silk-screen printing is better for specific brand colors. For a tactile luxury effect, request acid etching, which creates a recessed 'debossed' texture in the metal.

Metal naturally shields radio signals, so if you require NFC or RFID functionality, the card must feature a non-metal cutout or a PVC backing to allow signal transmission. Ensure the supplier can provide EMV chip slots that meet standard ISO dimensions. It is critical to request a functional prototype to test the read/write range before proceeding with a bulk order.

Products must comply with RoHS (Restriction of Hazardous Substances) to ensure the plating and base metals are free from lead and cadmium. For cards intended for the US or EU markets, verify that the edges are finely polished or rounded to prevent injury, meeting general consumer product safety standards. If used as payment cards, they must align with ISO/IEC 7810 ID-1 size specifications.

Always utilize third-party inspection services before the final balance payment. For metal cards, the most common defects are surface scratches, uneven plating, and sharp edges. Request a Pre-Shipment Inspection (PSI) where the inspector checks a random sample (AQL 2.5/4.0) to ensure the finish matches the approved golden sample.

Focus on tooling and setup fees. Since metal cards require custom molds or digital programming, suppliers often charge a high initial setup fee. Negotiate to have the mold fee refunded once your cumulative order volume reaches a certain threshold (e.g., 5,000 units). Additionally, ask for tiered pricing based on volume to lower your unit cost as your business scales.

Metal cards are significantly heavier than plastic, which increases air freight costs. For orders over 50kg, consider Sea Freight or Rail Freight to optimize the Total Cost of Ownership (TCO). Ensure the commercial invoice uses the correct HS Code (e.g., 7326.90 for steel articles) to avoid customs delays or incorrect duty applications. For secure transactions and reliable sourcing, I recommend using Made-in-China.com, which offers verified supplier profiles and trade security.

If the cards are pre-printed with QR codes, barcodes, or magnetic stripes, ensure the supplier signs a Non-Disclosure Agreement (NDA). Verify that the factory has CCTV monitoring in the production area and a strict data destruction policy for misprinted or defective cards to prevent identity theft or data leaks.