Laser Cutting Thickness Guide 2026: Material & Power Chart

Quick Answer: A 1kW fiber laser cuts 6mm carbon steel, while a 6kW cuts 25mm. This guide provides complete thickness charts for all common materials and power levels.

Carbon Steel Thickness Chart

Laser Power	Max Thickness	Best Quality
500W	3mm	0-2mm
1kW	6mm	0-4mm
2kW	10mm	0-8mm
3kW	16mm	0-10mm
6kW	25mm	0-16mm

Stainless Steel Thickness Chart

Laser Power	Max Thickness	Best Quality
1kW	3mm	0-2mm
2kW	6mm	0-4mm
6kW	16mm	0-10mm

How to Choose Based on Your Needs

Small Business (1-2kW): Up to 6mm carbon steel, $15,000-$30,000

Medium Fabrication (3-4kW): Up to 16mm carbon steel, $45,000-$80,000

Industrial Production (6kW+): Up to 25mm+ carbon steel, $80,000-$200,000

Get Your Custom Quote

Contact Metalbaja for power recommendation