Copper vs Stainless Steel for Laser Engraving: Which One Should You Buy?

Side by side

21 October 2026

Specifications are manufacturer rated, as published on each listing and collected 21 October 2026. On title-versus-table splits, the title wins.

Copper vs stainless steel for laser engraving: the material difference

The copper listing is Adrattnay’s 8-pack of 99.9% pure copper sheets, 4 in x 4 in at 24 gauge (0.5 mm, 0.02 in), with a double-side protective film. The listing names jewelry making, soldering, electrical projects and crafts, and lists laser marking and laser cutting among compatible processes. The stainless side is two business-card blank listings in 304 stainless: Yunsailing’s 12-pack at 0.2 mm and 86 x 54 mm, and Tandefio’s 50-pack at 0.8 mm and 3.39 x 2.13 in, the latter explicitly designed for laser engraving. Copper here is a craft metal; stainless here is a gift and branding blank.

Thickness and size

The Tandefio cards are the thickest at 0.8 mm, a substantial feel the listing ties to luxury branding. The Adrattnay copper sheets are 0.5 mm (0.02 in, 24 gauge), thin enough to cut with shears and bend by hand. The Yunsailing cards state 0.2 mm in the title, though the spec table’s size name says 0.4 mm; the title wins, so we score 0.2 mm. On size, copper gives 4 in x 4 in sheets (10.2 x 10.2 cm) while both stainless listings are standard card size, 86 x 54 mm or 3.39 x 2.13 in. Bigger blank versus pocket blank: the project decides.

Pack size and finish

The Tandefio leads on count with 50 cards, then Yunsailing with 12 (the bullets claim 30 pieces, but the title’s 12 wins), then Adrattnay with 8 sheets. On finish, the Adrattnay sheets carry a double-side protective film against scratches and oxidation, peeled before use. The Tandefio promises a sleek polished finish for brand work. The Yunsailing cards are blank on both sides for DIY designs. None of the three states a warranty term.

Listing contradictions to know

Two listings need a careful read. The Adrattnay copper listing calls its sheets “aluminium sheets” in one bullet while the title and every other line say 99.9% pure copper; the title wins and we score it as copper. The Yunsailing stainless listing is messier: the title says 12 pieces at 0.2 mm and 86 x 54 mm, while the bullets say 30 pieces and the table says 30 count, 0.4 mm size name and 3.94 x 2.56 in dimensions. On every split the title wins, so we score 12 pieces, 0.2 mm and 86 x 54 mm, and the contradictions cost it ranking points. The Tandefio listing is consistent throughout.

Choose copper if

You are making jewelry, soldering, doing electrical projects or crafting where copper’s conductivity and warm finish are the point. The Adrattnay 8-pack gives 99.9% pure 4 in x 4 in sheets at 24 gauge with protective film, and the listing names laser marking and cutting among its processes. Watch the “aluminium” bullet as a listing typo, and keep the sheets’ film on until use.

Choose stainless steel if

You are engraving gifts, business cards, VIP cards, nameplates or branded inserts. The Tandefio 50-pack is the workhorse: 304 stainless, 0.8 mm thick, 3.39 x 2.13 in, explicitly designed for laser engraving, and the only fully consistent listing here. The Yunsailing 12-pack is the thinner, smaller alternative at 0.2 mm, if you can live with its contradictory listing.

Project Match

• Engraved business and gift cards: Tandefio 50-pack, 0.8 mm 304 stainless, made for laser engraving.
• Thin card blanks in a small count: Yunsailing 12-pack, 0.2 mm (title figure), 86 x 54 mm.
• Copper jewelry and pendants: Adrattnay 8-pack, 99.9% pure, 4 x 4 in, 24 gauge.
• Soldering and electrical projects: Adrattnay copper sheets, per the listing’s stated uses.
• Stained glass and model work: Adrattnay copper, listed for stained glass repairs and architectural models.

FAQ: lasers and CNC

Can you laser engrave copper?

The Adrattnay listing names laser marking and laser cutting among the processes its 99.9% pure copper sheets suit, along with jewelry making, soldering and electrical projects. Copper’s reflectivity makes it harder than steel on some machines; the listing does not state machine settings.

Is stainless steel good for laser engraving?

The Tandefio listing is built around it: 304 stainless cards explicitly designed for laser engraving, etching and UV printing. The Yunsailing 304 cards are also sold as laser engraving blanks. Both stainless listings are sold for the job: the Tandefio cards are explicitly designed for laser engraving, etching and UV printing, and the Yunsailing cards are sold as laser engraving blanks the listing describes as hard to wear.

Which thickness should I pick for engraved cards?

The listings give three: 0.8 mm (Tandefio, substantial), 0.5 mm (Adrattnay copper, bendable) and 0.2 mm (Yunsailing, thin). Thicker reads as premium in hand; thinner cuts and bends easier.

Why do the Yunsailing specs disagree with each other?

The title says 12 pieces at 0.2 mm and 86 x 54 mm, while the bullets say 30 pieces and the table says 30 count with a 0.4 mm size name. On title-versus-table splits the title wins, so we use the title’s figures and mark the listing down for the contradictions.

Do any of these come with a warranty?

No. None of the three listings states a warranty term, so all three score zero on warranty.

Related: how to choose a laser engraver, the best 30oz tumblers for laser engraving, our stainless vs titanium tumblers for laser engraving comparison and the bamboo vs birch for laser engraving guide.