What Are the Main Features of a Metal Card?
A metal card is defined by four core features: the metal material itself, the EMV chip that handles transactions, the laser-engraved personalization, and the surface finish. Each feature serves a different purpose — some affect how the card functions, others affect how it looks and feels.
Understanding these features separately is the best way to evaluate a metal card, since not all of them relate to payment functionality. This guide breaks down each one individually, explains what it does, and clarifies common misconceptions.
Feature 1: Metal Material (Stainless Steel or Aluminum)
The base material is the foundation of the card and the most obvious difference from plastic.
Stainless steel:
- Heavier, typically 12–18 grams
- Highly resistant to bending and structural wear
- Common in premium and luxury card builds
Aluminum:
- Lighter, typically 5–10 grams
- Still significantly more durable than plastic
- Supports anodized color finishes not available on steel
Neither material affects how the card processes a transaction. The material is purely structural and aesthetic. A full material comparison is available in Metal Card Materials.
Feature 2: The EMV Chip
The chip is the single most important functional feature of any card, metal or plastic.
What the chip does:
- Stores encrypted account data
- Communicates with payment terminals during a transaction
- Determines whether a card supports insert (chip), swipe, or contactless payment
What the chip does not depend on:
- The material surrounding it
- The card’s weight or thickness
- The engraving or finish applied to the surface
When converting a plastic card into metal, the original chip is carefully removed from the plastic and securely embedded into the new metal card body. The chip itself isn’t altered — only its housing changes. This is explained step by step in How Metal Cards Work.
Feature 3: Laser Engraving
Laser engraving is what makes metal card personalization permanent, and it works differently from how plastic cards are printed.
How it works:
- A laser removes a thin layer of the metal surface to create text or designs
- The result is a physical, recessed engraving rather than a printed layer
- Engraving depth and contrast vary depending on the metal’s finish
Why it matters:
- Engraved details don’t fade, rub off, or peel over time
- Designs remain legible for the entire lifespan of the card
- Complex designs (logos, patterns, custom text) can be engraved with high precision
This is one of the clearest functional advantages metal has over plastic, since printed plastic cards are far more prone to visible wear over a few years of use. A closer breakdown of this process is available in Laser Engraving Explained.
Feature 4: Surface Finish
The finish affects both appearance and how engraving appears once complete.
| Finish Type | Appearance | Best For |
|---|---|---|
| Brushed | Subtle linear texture | Reduces visible fingerprints |
| Matte | Flat, non-reflective | Clean, understated look |
| Glossy/Mirror | High-shine, reflective | Bold, high-contrast engraving |
| Anodized color (aluminum only) | Solid color without paint | Distinct, non-standard appearance |
Finish choice is purely cosmetic and doesn’t affect chip function or card durability in any meaningful way. Full finish comparisons are available in Metal Card Surfaces.
Feature 5: Weight and Thickness
Weight is one of the most noticeable features of a metal card, even before any visual details are considered.
Why weight matters to users:
- Creates a distinct in-hand feel compared to plastic
- Often associated with a more premium or substantial product
- Can vary depending on material and card thickness
Weight has no impact on transaction speed, chip readability, or card function — it is a physical characteristic only.
Feature 6: Compatibility With Existing Cards (Conversion)
For anyone starting with a plastic card, compatibility is a feature that determines whether conversion is possible at all.
What affects compatibility:
- Chip type and placement on the original card
- Card thickness and design layout
- Whether the card is active and in good physical condition
Not every plastic card is automatically eligible for metal conversion. Royal Metal Card and similar providers assess this before beginning the engraving or chip transfer process. Compatibility requirements are outlined in the Card Compatibility Guide.
Feature Comparison: Metal Card vs. Plastic Card
| Feature | Metal Card | Plastic Card |
|---|---|---|
| Material | Stainless steel / aluminum | PVC / PET |
| Personalization | Laser engraved (permanent) | Printed (fades over time) |
| Weight | 5–18g | 4–6g |
| Chip function | Same as original | Standard |
| Surface finish options | Multiple (brushed, matte, mirror, anodized) | Limited (printed only) |
| Durability | High resistance to bending/cracking | Lower long-term durability |
A more detailed side-by-side is available in Metal Card Vs Plastic Card.
Features That Are Commonly Misunderstood
A few features are frequently assumed rather than confirmed, so it’s worth clarifying directly.
- Contactless payment (NFC): Not automatically included in a standard metal conversion. This depends on whether an NFC antenna is specifically integrated, not on the material.
- Security: Determined by the chip and encryption standard, not by the card being metal.
- Bank account changes: Conversion does not create a new account or card number — the original chip and account details carry over.
How These Features Work Together
Each feature serves a distinct role:
- Material provides the physical structure and durability
- Chip handles the actual payment transaction
- Engraving delivers permanent personalization
- Finish determines the visual presentation
- Compatibility determines whether conversion is possible in the first place
None of these features overlap in function, which is why it’s possible to have a highly durable, beautifully engraved metal card that still works exactly like the original plastic card it came from.
Frequently Asked Questions
What is the most important feature of a metal card?
The EMV chip, since it’s the only feature that determines how the card actually processes payments. Every other feature — material, engraving, finish — affects appearance and durability, not function.
Does laser engraving affect how the card works?
No. Engraving is applied to the surface of the metal and doesn’t interact with the chip or the card’s internal components in any way.
Can I choose the finish and engraving design for a converted card?
Yes. Finish and engraving are typically customizable, since they’re applied during the conversion process rather than being fixed by the original plastic card.
Do all metal cards have the same features?
No. Features like material, finish, and engraving style vary by provider and customer preference. Chip functionality, however, stays consistent with the original card in a conversion.
Does a metal card’s weight indicate better quality?
Not necessarily. Weight reflects the material used (steel vs. aluminum) rather than build quality. Both materials can produce a well-made, durable card.
Conclusion
A metal card’s value comes from how its individual features work together — durable material, a fully functional chip, permanent laser engraving, and a customizable finish. None of these features compete with each other; each plays a specific, separate role in how the card looks, feels, and works.
Understanding these features individually makes it easier to know exactly what a metal card offers, and just as importantly, what it doesn’t change. The material and engraving define the experience. The chip, unchanged from the original card, defines the function.