Corten Steel Laser Cutting
Precision laser cutting for Corten (weathering) steel — perfect for architectural screens, signage, garden edging and custom features with a natural rust patina finish.
Corten steel specifications
| Thickness (mm) | Density (kg/m³) | Tensile Strength (MPa) | Yield Strength (MPa) | Hardness (HB) | Corrosion Resistance | Typical Laser Tolerance* | Common Applications |
|---|---|---|---|---|---|---|---|
| 1.6 | 7850 | 480–630 | ≥345 | 140–200 | High (forms patina) | ±0.20mm | Screens, panels, signage, decorative parts |
| 2.0 | 7850 | 480–630 | ≥345 | 140–200 | High (forms patina) | ±0.20–0.25mm | Panels, brackets, garden features |
| 3.0 | 7850 | 480–630 | ≥345 | 140–200 | High (forms patina) | ±0.25mm | Structural brackets, architectural elements |
*Typical values for weathering steel (Corten). Patina formation depends on environment and drainage; avoid constant wet conditions.
| Thickness (mm) | Density (kg/m³) | Tensile Strength (MPa) | Yield Strength (MPa) | Hardness (HB) | Corrosion Resistance | Typical Laser Tolerance* | Common Applications |
|---|---|---|---|---|---|---|---|
| 4.0 | 7850 | 480–630 | ≥345 | 140–200 | High (forms patina) | ±0.30mm | Edging, plates, heavier brackets |
| 5.0 | 7850 | 480–630 | ≥345 | 140–200 | High (forms patina) | ±0.30mm | Base plates, mounts, features |
| 6.0 | 7850 | 480–630 | ≥345 | 140–200 | High (forms patina) | ±0.35mm | Architectural components |
*Laser cutting can leave a heat-affected zone; for visible architectural work, consider edge finishing or light sanding.
| Thickness (mm) | Density (kg/m³) | Tensile Strength (MPa) | Yield Strength (MPa) | Hardness (HB) | Corrosion Resistance | Typical Laser Tolerance* | Common Applications |
|---|---|---|---|---|---|---|---|
| 8.0 | 7850 | 480–630 | ≥345 | 140–200 | High (forms patina) | ±0.40mm | Heavier architectural components |
| 10.0 | 7850 | 480–630 | ≥345 | 140–200 | High (forms patina) | ±0.50mm | Structural plates, bases |
| 12.0 | 7850 | 480–630 | ≥345 | 140–200 | High (forms patina) | ±0.60mm | Heavy features (job dependent) |
*Thicker plate may require slower cutting and larger internal radii. Confirm stock/availability for small jobs.
- Forms a protective patina (rust-like appearance) that reduces further corrosion
- Excellent for architectural screens, outdoor features and signage
- Stronger than many standard mild steels with good structural performance
- Design for drainage to help patina stabilise and reduce run-off staining
Cutting sizes
| Item | Typical Value |
|---|---|
| Max sheet size | 1200 × 1200mm |
| Best for | Screens, signage, decorative panels |
| Typical tolerance* | ±0.20–0.25mm |
| Notes | Fine detail possible; allow for kerf on tight interlocks |
| Item | Typical Value |
|---|---|
| Max sheet size | 1200 × 1200mm |
| Best for | Garden edging, brackets, structural features |
| Typical tolerance* | ±0.30–0.35mm |
| Notes | Great balance of stiffness and weight for architectural work |
| Item | Typical Value |
|---|---|
| Max sheet size | 1200 × 1200mm (common) |
| Best for | Heavier architectural pieces, base plates |
| Typical tolerance* | ±0.40–0.60mm |
| Notes | Heavier plate; confirm critical fits and edge finish requirements |
- Tolerances depend on part geometry, material condition, and laser parameters.
- Use these ranges as a guide. Actual capabilities can vary based on design complexity, hole sizes, and edge quality requirements.
Stocked materials
To keep turnaround times fast on smaller jobs, we recommend choosing from our stocked thicknesses, highlighted in blue. While we can cut many other thicknesses, availability may vary depending on project size.
1.6mm
3mm
Properties of Corten Steel
Corten steel is a type of weathering steel engineered to develop a protective oxide layer (patina) when exposed to the atmosphere. Unlike regular steel, the patina helps slow down further corrosion, creating a long-lasting, low-maintenance finish that’s highly valued in architectural and landscaping projects.
For Corten steel laser cutting, the material is ideal for custom profiles, intricate cut-outs and repeat parts used in architectural screens, signage, garden edging and feature panels. During patina formation, run-off can stain nearby surfaces, so it’s common to design for drainage, airflow and appropriate mounting clearances.
Common searches include laser cut Corten steel, weathering steel laser cutting and custom Corten screens across Australia.
What you can create
- Architectural privacy screens and decorative panels
- Laser cut signage, lettering and branding plates
- Garden edging, planters and landscaping features
- Feature facades and outdoor art installations
- Brackets, plates and custom fabrication components
- Gates, infill panels and custom outdoor features
FAQs
Corten steel (weathering steel) is a steel alloy designed to form a stable, protective rust-like patina. This patina slows further corrosion, giving Corten its distinctive appearance and long-term durability.
Corten develops a surface patina that stabilises over time in the right conditions. If the material is kept constantly wet or has poor drainage, the patina may not stabilise and corrosion can continue.
We commonly laser cut Corten from around 1.6mm up to 12mm depending on design complexity and availability. For small jobs, choosing stocked thicknesses generally offers the best turnaround.
During the patina formation phase, run-off can stain concrete or paving. Design for drainage and consider sealing if staining is a concern.
Alternative materials
If Corten steel isn’t the best fit for your application, consider these options
Get a quote for Corten Steel laser cutting
For outdoor and architectural applications, we provide corten steel laser cutting in Geelong and across Australia
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