Carbon Steel Laser Cleaning for Rust and Mill Scale
Pulsed 1064nm nanosecond fiber laser cleaning removes rust and adherent contamination from carbon steel at fluences of 2–5 J/cm² [1], but AMPP SP21511-1 (August 2024) establishes a...
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Alessandro MorettiPh.D.Italy
Materials process development for ceramics and alloysPublished
Nov 20, 2025
Netalux Laser System Laser Cleaning
The Netalux laser system is industrial equipment built on pulsed fiber technology, sold to professional shops that need repeatable rust, scale, and coating removal without media blasting. Trade demonstrations showcase the same platform on booth samples, running the beam across a scrap panel to prove clean metal within seconds, and the average power scales across the Netalux line from lower-power handheld heads up to higher-power cabinet units built for continuous shop floor work. The system does its job on loose rust, mill scale, and coating removal across steel, stainless steel, and aluminum, and it fits routine work in metal fabrication shops. What it will not do is strip a thick multilayer coating in a single pass, and it will not replace bulk sandblasting on large flat panels where abrasive methods still clear faster. Shops running it on automotive and EV parts still need fume extraction and beam-rated eye protection, since the concentrated energy can ignite loose residue if airflow around the work zone is weak.
What This Video Shows
Short rOo50iihjJA shows the Netalux pulsed fiber laser system clearing contaminants from metal faces in 55 seconds without grit.
Ferrous and Structural Alloys a Netalux System Handles
Related contaminants
Organic grease and oil
Greasy steel and aluminum weld coupons need extraction bracketed before the pulsed pass. Cutting-fluid residue pyrolyzes at the lowest degrease energy band of any contaminant family on those joint faces, coupon work, not a production shell throughput claim.
Mill scale and magnetite
Crews on hot-rolled plate with intact mill scale run four or five pulsed 1064 nm passes under HEPA because the magnetite laminate clears slower than field rust and Cal/OSHA caps iron oxide fume at 5 mg/m³. Thermoelastic spallation at the oxide-steel interface drives removal on [carbon steel](/materials/steel-laser-cleaning), not the same recipe as [field rust](/contaminants/iron-oxide-rust-laser-cleaning).
Iron oxide rust
Hydrated rust blocks primer adhesion until someone names the ISO grade on the plate. A pulsed 1064 nm pass strips the red film on [steel](/materials/steel-laser-cleaning) once mill scale is already gone. Coupon repetition-rate and fluence numbers stay on labeled plates, not on every shell or roller in the bay.
Oxide scale
The crew names the alloy and the scale before touching the beam, hot-rolled magnetite on [carbon steel](/materials/steel-laser-cleaning) needs a higher coupon band than thin GTAW heat tint on [stainless](/materials/stainless-steel-laser-cleaning), and intact Grade A mill scale is not a standard pulsed-laser-cleaning target under AMPP practice. [Titanium](/materials/titanium-laser-cleaning) alpha-case and [Inconel](/materials/inconel-laser-cleaning) service oxide each carry a different damage ceiling at 1064 nm; coupon numbers stay on those plates, not as a fleet license on every shell.
Paint and coatings
Bridge crews reach for HEPA before solvent when lead or chromate primers hide under aged topcoats, because BAAQMD cold-cleaner rules cap stripper VOC well below what commercial products carry. A pulsed 1064 nm pass removes organic films without a liquid hazmat stream, yet [oak](/materials/oak-laser-cleaning) and [concrete](/materials/concrete-laser-cleaning) test coupons on the same job do not inherit plate-[steel](/materials/steel-laser-cleaning) damage margins. Grit-profile recoats that demand ISO 8503 anchor tooth stay out of scope even when the visible coat is gone.
Related applications
Metal fabrication cleaning
A Bay Area fabrication shop can shed its solvent permit burden and cut weld rejects with the same single change. Solvent degreasing pulls a shop into Bay Area Air Quality Managemen...
Rust removal — Bay Area
ISO 8501-1 Grade A mill scale is mechanical prep. Grades C–D field rust is the pulsed-laser job.