Choosing suitable metal materials to make metal cards requires comprehensive consideration of multiple factors. The following are some specific selection points:

Usage requirements and scenarios:

Ordinary membership card or business card: If there are high requirements for durability and texture of the card, but low requirements for special properties such as magnetism and electronic induction, materials such as brass and aluminum alloy are more suitable. The metal card made of brass material has good plasticity and can present a high texture and aesthetics, suitable for showcasing the high-end image of enterprises or individuals; Aluminum alloy is relatively lightweight, cost-effective, and also has certain strength and corrosion resistance, making it suitable for mass production and daily use.

Smart cards or cards that require built-in chips: For metal cards that require built-in chips, magnetic strips, and other electronic components, they should be made of metal materials that have less interference with electronic signals and are easy to process, such as stainless steel. Stainless steel has good electromagnetic compatibility, which can ensure the normal operation of electronic components, and its high strength and wear resistance can effectively protect internal electronic components.

Commemorative or collectible cards: For making metal cards with commemorative or collectible value, precious metal materials such as pure copper, pure silver, or gold are ideal choices. After special treatment, pure copper material can present a quaint and elegant color, with high collection value; The pure silver material is soft in texture, easy to process into various exquisite patterns and shapes, and has good antioxidant properties; Gold material is the most expensive, with extremely high value retention and unique luster, which can highlight the nobility and rarity of the card.

Physical characteristics:

Strength and hardness: If the metal card needs to be used frequently or may be subjected to certain external impacts, then a metal material with higher strength and hardness, such as titanium alloy, alloy steel, etc., should be selected. Titanium alloy has the characteristics of high strength and low density. While ensuring the strength of the card, it is relatively lightweight and easy to carry; Alloy steel has high strength and hardness, and can withstand significant pressure and wear, but its weight is relatively heavy.

Flexibility: For some metal cards that may require bending or folding, such as shaped cards, it is necessary to choose a metal material with a certain degree of flexibility, such as copper alloy. Copper alloy has good flexibility and is not easy to break while maintaining a certain strength, which can meet the requirements of producing irregular cards.

Processing difficulty and cost:

Processing difficulty: Different metal materials will have varying levels of difficulty during the processing. For example, zinc alloy has a low melting point and is easy to die cast, making it suitable for making metal cards with complex shapes and fine patterns; The hardness of tungsten alloy is very high, and the processing difficulty is relatively high, requiring high requirements for processing equipment and technology. If the number of metal cards produced is large, metal materials with lower processing difficulty and higher production efficiency should be selected to reduce production costs and cycles.

Cost: The price difference of metal materials is significant, which directly affects the production cost of metal cards. Generally speaking, common metal materials such as copper and aluminum have relatively low prices and are suitable for large-scale production; However, precious metal materials such as gold and silver are expensive and are usually used to make high-end metal cards or limited edition cards. When choosing metal materials, it is necessary to consider both budget and market demand comprehensively.

Appearance effect:

Color and luster: Different metal materials have different colors and luster. For example, stainless steel usually presents a silver gray metallic luster, with a modern and technological feel; Brass presents a golden luster, giving people a sense of nobility and elegance; Metal materials that have undergone electroplating or spraying treatment can present various colors, such as gold, silver, black, etc., which can meet different design needs.

Surface treatment effect: Some metal materials are suitable for specific surface treatment to achieve better appearance. For example, aluminum material can undergo anodizing treatment to form a hard, wear-resistant, and corrosion-resistant oxide film on the surface, which can not only improve the service life of the card, but also increase the brightness and stability of the color; Copper material can undergo antique treatment to create a vintage and nostalgic atmosphere.