Common Metal Materials for Custom Craft Gifts and Their Characteristics

1. Stainless Steel

Characteristics: Corrosion-resistant, high strength, oxidation-resistant, smooth surface finish.
Suitable Products: Badges, keychains, medals, jewelry, tableware, cups.
Processing Techniques: Laser cutting, etching, brushing, electroplating, polishing, hollowing.

2. Brass

Characteristics: Premium texture, golden hue, high malleability, excellent corrosion resistance.
Suitable Products: Badges, medals, commemorative coins, ornaments, bookmarks, handmade jewelry.
Processing Techniques: Embossing, inlaying, die-casting, polishing, gold plating, engraving.

3. Aluminum Alloy

Characteristics: Lightweight, corrosion-resistant, easily anodized for coloring, easy to process.
Suitable Products: Nameplates, trophies, keychains, plaques, decorative items.
Processing Techniques: CNC engraving, laser engraving, anodizing, brushing, sandblasting.

4. Zinc Alloy

Characteristics: Cost-effective, easy to cast into intricate shapes, capable of multi-color electroplating.
Suitable Products: Badges, keychains, medals, lapel pins, commemorative coins.
Processing Techniques: Die-casting, electroplating, painting, enamel filling, oxidation treatment.

5. Iron

Characteristics: High hardness, magnetic, low cost but prone to rusting.
Suitable Products: Badges, keychains, decorative ornaments, nameplates.
Processing Techniques: Painting, electroplating, etching, baking paint.

6. Sterling Silver (925 Silver)

Characteristics: Precious metal, high luster, strong oxidation resistance (though prone to tarnishing).
Suitable Products: High-end jewelry, commemorative coins, artworks.
Processing Techniques: Inlaying, engraving, oxidized aging, electroplating (gold, rhodium, etc.).

7. Pure Gold (Gold Foil, K Gold)

Characteristics: High-end precious metal, rare, corrosion-resistant, luxurious color.
Suitable Products: Commemorative coins, high-end jewelry, collectibles.
Processing Techniques: Inlaying, engraving, embossing, electroforming.

8. Titanium Alloy

Characteristics: Lightweight, high strength, corrosion-resistant, hypoallergenic.
Suitable Products: High-end jewelry, military-grade commemorative items, medical device-related crafts.
Processing Techniques: Laser engraving, anodizing, CNC engraving.

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Surface Treatment Techniques for Metal Craft Gifts

To enhance the appearance and durability of metal craft gifts, the following surface treatments are commonly applied:

• Electroplating (Gold, silver, rhodium, nickel, black nickel, etc.)
• Oxidation Treatment (Anodizing, chemical oxidation)
• Brushing (Metal brushing technique for enhanced texture)
• Sandblasting (Matte finish for a refined look)
• Embossing (Used for badges, commemorative coins, etc.)
• Enamel Filling (Baked enamel, soft enamel)
• Etching (Metal engraving technique, suitable for nameplates and plaques)

If you require a more detailed customization plan or recommendations on suitable materials, please provide specific product requirements or intended applications!