Choosing the Best Metal for Laser-Engraved Coins: Brass, Titanium, Stainless, and More

When it comes to laser engraving coins, the choice of metal makes a huge difference in workflow, finish, and visual impact. Many engravers weigh factors like hardness, engraving speed, chemical finishing options, and customer expectations when selecting materials. Here’s a summary of real-world insights from experienced coin makers.

1. Brass – The Go-To Choice

Most engravers favor brass for coin making.

• Easy to engrave due to its softness compared to stainless steel or titanium.
• Accepts chemical darkening treatments, like Brass Black, for a deep, classic finish.
• Smooth cleanup and minimal risk of rough edges.

“Brass would be 90% of the coins I make. The rest is mostly copper depending on the job.” – User A
“I have used all 3 and tend to like Brass more. You can get a better finish with brass and brass black.” – User B

Brass also aligns well with traditional challenge coin aesthetics, which are typically gold or silver-toned. For step-by-step brass coin etching techniques using a 60W MOPA laser, check out: Coin Etching Process on 60W MOPA Laser (OMG-X).

2. Copper – A Secondary Option

Copper is a softer metal, similar to brass, and works well for coins that require a reddish hue. Some engravers use it for specialty projects or to match specific designs. Its workability and ability to accept depth-map engraving make it a viable secondary material.

“I like copper too.” – User C

For efficient cleanup after engraving, many users prefer magnetic tumblers or Dremel polishing tools, especially for brass coins: Magnetic Tumbler vs Dremel: Polishing Brass Coins Efficiently.

3. Stainless Steel – Tough but Tricky

While stainless steel offers durability and a silvery shine, most users avoid it for coins because:

• It engraves slower than brass or copper.
• The surface can be rough if not carefully managed.
• Chemical darkening options are limited.

“I try to avoid engraving SS… Hard metals like these engrave slow and rough.” – User D
“Stainless is a hard pass for me.” – User E

Some engravers will take on stainless steel if the customer insists, but it’s usually less common due to the extra time and effort required.

4. Titanium – A Specialty Material

Titanium is strong and lightweight but presents challenges similar to stainless steel:

• Slower engraving speeds
• Harder to achieve smooth finishes
• Depth-map color marking is difficult

“Love me some titanium, timascus and brass… Stainless is a hard pass for me.” – User F
“I have done maybe 3 SS and zero titanium… primarily old school military challenge coins are brass.” – User G

Titanium is often chosen for premium or custom projects where durability and a modern look are desired.

5. Gold & Platinum – Luxury Options

Some engravers work with precious metals for high-end coins or commemorative pieces. Gold and platinum are soft enough for precision engraving but are primarily used for limited runs due to material cost.

“Gold or platinum.” – User H

Key Takeaways

1. Brass is the most versatile and beginner-friendly metal for coins due to its soft surface, chemical finish options, and classic look.
2. Copper is a close secondary option for warm-toned designs.
3. Stainless steel and titanium are harder to engrave and often reserved for specialized or premium projects.
4. Customer preference and budget often dictate the choice of metal.
5. Finishing techniques like Brass Black or patinas can enhance the visual appeal of softer metals.

Choosing the right material depends on the desired finish, engraving complexity, and how much cleanup effort you’re willing to invest. For traditional coins, deep etching, and a smooth, clean finish, brass remains the top choice among experienced engravers.