Galvbond Laser Cutting
Precision laser cutting for galvbond steel. Ideal for general manufacturing, fabrication, and forming applications that require high corrosion resistance.
Galvbond specifications
| Thickness (mm) | Density (kg/m³) | Base Steel Tensile (MPa) | Base Steel Yield (MPa) | Coating (typical) | Corrosion Resistance | Typical Laser Tolerance* | Common Applications |
|---|---|---|---|---|---|---|---|
| 0.55 | 7850 | 370–510 | ≥235 | Z275 zinc coated | Moderate–Good | ±0.15–0.20mm | Flashings, covers, ducting parts |
| 0.75 | 7850 | 370–510 | ≥235 | Z275 zinc coated | Moderate–Good | ±0.15–0.20mm | Enclosures, brackets, panels |
*Typical values for zinc-coated (Galvabond) sheet. Laser cutting can affect coating on the cut edge; edge protection may be required for outdoor use.
| Thickness (mm) | Density (kg/m³) | Base Steel Tensile (MPa) | Base Steel Yield (MPa) | Coating (typical) | Corrosion Resistance | Typical Laser Tolerance* | Common Applications |
|---|---|---|---|---|---|---|---|
| 0.9 | 7850 | 370–510 | ≥235 | Z275 zinc coated | Moderate–Good | ±0.20mm | Ducting, panels, general sheet metal |
| 1.2 | 7850 | 370–510 | ≥235 | Z275 zinc coated | Moderate–Good | ±0.20mm | Covers, guards, light fabrication |
*Galvabond provides improved corrosion resistance compared to uncoated mild steel, but cut edges can still corrode over time in harsh environments.
| Thickness (mm) | Density (kg/m³) | Base Steel Tensile (MPa) | Base Steel Yield (MPa) | Coating (typical) | Corrosion Resistance | Typical Laser Tolerance* | Common Applications |
|---|---|---|---|---|---|---|---|
| 1.6 | 7850 | 370–510 | ≥235 | Z275 zinc coated | Moderate–Good | ±0.20–0.25mm | Brackets, plates, mounts |
| 2.0 | 7850 | 370–510 | ≥235 | Z275 zinc coated | Moderate–Good | ±0.20–0.25mm | Plates, fabrication components |
*For welding or outdoor exposure, consider post-processing: edge sealer, cold galv, paint, or powder coat.
| Thickness (mm) | Density (kg/m³) | Base Steel Tensile (MPa) | Base Steel Yield (MPa) | Coating (typical) | Corrosion Resistance | Typical Laser Tolerance* | Common Applications |
|---|---|---|---|---|---|---|---|
| 2.5 | 7850 | 370–510 | ≥235 | Z275 zinc coated | Moderate–Good | ±0.25–0.30mm | Heavier brackets, base plates |
| 3.0 | 7850 | 370–510 | ≥235 | Z275 zinc coated | Moderate–Good | ±0.25–0.30mm | Heavier fabrication (job dependent) |
*Thicker Galvabond availability can vary. For small jobs, choosing stocked thicknesses improves turnaround.
- Zinc coating improves corrosion resistance for indoor and sheltered applications
- Cost-effective alternative to stainless for many sheet metal parts
- Clean profiles for ducting, panels, covers and brackets
- Cut edges may need protection for outdoor or wet environments
Cutting sizes
| Item | Typical Value |
|---|---|
| Max sheet size | 1200 × 1200mm |
| Best for | Flashings, light brackets, enclosures |
| Typical tolerance* | ±0.15–0.20mm |
| Notes | Zinc coating provides improved corrosion resistance; avoid sharp bends after cutting if coating is critical |
| Item | Typical Value |
|---|---|
| Max sheet size | 1200 × 1200mm |
| Best for | Ducting, covers, panels, light structural parts |
| Typical tolerance* | ±0.20mm |
| Notes | Common for general sheet metal work; coating can be touched up after fabrication |
| Item | Typical Value |
|---|---|
| Max sheet size | 1200 × 1200mm |
| Best for | Brackets, plates, mounting parts |
| Typical tolerance* | ±0.20–0.25mm |
| Notes | Heavier sheet; consider hole sizing and kerf allowance for tight fits |
| Item | Typical Value |
|---|---|
| Max sheet size | 1200 × 1200mm (availability varies) |
| Best for | Heavier brackets, base plates (job dependent) |
| Typical tolerance* | ±0.25–0.30mm |
| Notes | Thicker coated sheet availability varies; confirm stock for small jobs |
- 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.
0.55mm
0.9mm
1.2mm
1.55mm
1.95mm
2.9mm
Properties of Galvbond
Galvabond is a pre-galvanised steel sheet with a protective zinc coating. The coating helps slow oxidation and provides improved corrosion resistance compared to uncoated mild steel, making Galvabond a popular choice for ducting, enclosures, flashings and general fabrication.
For Galvabond steel laser cutting, the base steel cuts similarly to mild steel, enabling accurate profiles, slots and repeat parts for production. A key consideration is the cut edge: laser cutting can expose the base steel at the edge, so for outdoor or wet environments, it’s common to apply edge protection such as cold galv, primer + paint, or powder coating.
Common searches include laser cut Galvabond, Galvabond steel laser cutting and custom sheet metal cutting across Australia.
What you can create
- HVAC ducting components and transition pieces
- Electrical and equipment enclosures
- Flashings, brackets and fixing plates
- Automotive and Panels, covers and guardscomponents
- Mounting plates and sheet metal assemblies
- Templates and prototypes for fabrication
FAQs
Galvabond is a zinc-coated (pre-galvanised) steel sheet that offers improved corrosion resistance compared to uncoated mild steel. It is commonly used for ducting, enclosures, flashings and general sheet metal work.
Laser cutting can leave the cut edge without full coating coverage. For outdoor or wet environments, we recommend edge protection such as cold galvanising compound, primer + paint, or powder coating.
We commonly cut Galvabond from around 0.55mm up to 3.0mm depending on design complexity and availability. For small jobs, stocked thicknesses generally offer the best turnaround.
Galvabond offers better corrosion resistance than uncoated steel, but for long-term outdoor exposure—especially coastal areas—additional finishing is recommended, or consider stainless steel or aluminium.
Alternative materials
If Galvbond isn’t the best fit for your application, consider these options
Get a quote for Galvbond laser cutting
Galvabond is commonly used for ducting and sheet metal work. We support these applications through laser cutting services in Ballarat and Australia-wide delivery
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