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Carbon Steel

6 settings6 machines

This page lists 6 community-tested settings for Carbon Steel. Most metals require a coating (Cermark, Brilliance Laser Ink, or anodizing) for diode lasers. CO2 lasers can mark bare metal with the right settings.


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Top setting per machine

MachineOpSpeedPowerPasses
xTool F1mark1000 mm/s85%1
ComMarker B4mark900 mm/s65%1
xTool F1 Ultra (Fiber)mark800 mm/s50%1
JPT MOPA 30W Fibermark1000 mm/s50%1
LaserPecker 4mark1500 mm/min85%1
Commarker B6 30Wengrave1500 mm/min85%1

Works with these machines

xTool F1ComMarker B4xTool F1 Ultra (Fiber)JPT MOPA 30W FiberLaserPecker 4Commarker B6 30W

6 settings

xTool F12Wfiber
mark
Speed1000 mm/sPower85%Passes1

IR module. Carbon steel marks well. Clean oil/grease from surface first.

Shop xTool F1More settings for this machine →
ComMarker B420Wfiber
mark
Speed900 mm/sPower65%Passes1

Black oxidation mark on tool steel or knife blanks.

Shop ComMarker B4More settings for this machine →
xTool F1 Ultra (Fiber)2Wfiber
mark
Speed800 mm/sPower50%Passes1
Shop xTool F1 Ultra (Fiber)More settings for this machine →
JPT MOPA 30W Fiber30Wfiber
mark
Speed1000 mm/sPower50%Passes1
More settings for this machine →
LaserPecker 42Wfiber
mark✓ Verified
Speed1500 mm/minPower85%Passes1DPI300

Dark oxide mark on carbon steel — great for tool marking, knife blades, and industrial parts. The LP4 is popular with tradespeople who need to mark their tools with names or ID numbers on-site. Permanent marks that survive harsh use.

Shop LaserPecker 4More settings for this machine →
Commarker B6 30W30Wfiber
engrave✓ Verified
Speed1500 mm/minPower85%Passes1DPI300

Deep dark mark on carbon steel — great for tool marking, knife blades, and industrial parts. The result is rust-resistant when the oxide layer forms properly. Wipe with a dry cloth after marking to remove debris.

Shop Commarker B6 30WMore settings for this machine →
Materials

Supplies to have on hand

Materials and accessories that pair well with Carbon Steel laser projects.

Cermark Metal Marking SprayAllows CO₂ and diode lasers to permanently mark bare metal.
Brilliance Laser InkBudget alternative to Cermark for metal marking.
Anodized Aluminum SheetEngraves vivid black on a diode laser - no spray needed.
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Frequently Asked Questions

What are the best laser settings for Carbon Steel?

A top-rated community setting for Carbon Steel on the xTool F1 is speed 1000 mm/s, power 85%. There are 6 community-tested settings for Carbon Steel across 6 machines on this page.

Do I need a fiber laser for Carbon Steel?

Fiber lasers can mark Carbon Steel directly without any coating. There are 6 fiber laser settings on this page. Diode and CO₂ lasers may require a marking compound (like Cermark) to achieve a visible result on bare metal.

What Makers Say

★★★★★5.0· 6 reviews
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★★★★★

"Used it with a Glowforge — engraved beautifully with no changes. I will be purchasing more digital downloads from this shop."

Anna

★★★★★

"I was struggling with lining up my NFC business cards. I was able to not only line them up much better but also do multiple cards at once — making that job so much easier."

Camp

★★★★★

"Excellent quality and design. Cut clean and neat!"

LYNN

★★★★★

"Great jigs. Appreciate the time saved not having to build this from scratch!"

Bruce

★★★★★

"Excellent quality. Item as described. Expectations exceeded."

Michael

★★★★★

"This template made my slate coasters so much easier. 4×4 coasters from Michaels drop in easily and are easy to remove. Def worth it."

chris

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