Materials / Mild steel
Mild steel
laser cutting.
Custom mild steel profiles for brackets, mounting plates, panels and fabrication projects. Choose your thickness and quantity, then price your drawing online.
When to choose mild steel
Mild steel is a practical starting point for general fabrication where a painted or coated finish is planned. It suits flat brackets, mounting plates, spacers and panels. A thicker sheet may give more rigidity, but it also increases weight and changes the minimum features you can cut.
- Mounting plates with fixing holes
- Flat brackets and general fabricated profiles
- Spacers, panels and prototype parts
Available thicknesses
These thicknesses are in our range. Your quote shows which options are currently available for your part.
- 1 mm
- 1.5 mm
- 2 mm
- 3 mm
- 4 mm
- 5 mm
- 6 mm
Need a particular grade or type?
If your drawing requires a particular steel grade, surface treatment or material certificate, send us the details before ordering. We can check availability for the thickness you need.
Hole sizes, part sizes and fit
Our usual cutting tolerance is ±0.2 mm: the finished size can be slightly larger or smaller than the drawing. Larger parts or complex shapes can vary more. If a hole or edge must fit another part precisely, discuss it with us before ordering. The table shows the smallest holes and slots we can cut; a hole for a bolt or pin may need to be larger to give the right fit.
| Thickness | Minimum hole / slot | Minimum part | Maximum part |
|---|---|---|---|
| 1 mm | 0.7 mm | 15 × 15 mm | 900 × 900 mm |
| 1.5 mm | 0.7 mm | 15 × 15 mm | 900 × 900 mm |
| 2 mm | 0.8 mm | 20 × 20 mm | 850 × 850 mm |
| 3 mm | 1.2 mm | 25 × 25 mm | 800 × 800 mm |
| 4 mm | 1.5 mm | 30 × 30 mm | 700 × 700 mm |
| 5 mm | 2.2 mm | 40 × 40 mm | 600 × 600 mm |
| 6 mm | 2.8 mm | 50 × 50 mm | 500 × 500 mm |
Check the width and height of the whole part, including any tabs sticking out. Check each hole in the preview too. These values match our design guide; your quote confirms the current limits for the selected material and thickness.
Surface finish and cut edges
Uncoated mild steel can rust when exposed to moisture. Plan suitable protection for the environment where your part will be used. If the part will be welded or painted, tell us about any surface preparation that matters to your process.
Deburring is included: we remove burrs from the metal edges. If you need a particular edge shape, finish or precise fit, tell us before ordering. Our quality and tolerances guide explains what to check.
Textured powder coating is available for eligible metal parts. Check the colours and options shown in your quote.
From your file to your part
- Prepare a clean, full-size DXF in millimetres, or a suitable sheet-metal STEP/STP model.
- Choose mild steel, an available thickness and your quantity.
- Check the preview, any warnings, your selected options and the price before ordering.
If your drawing has gaps, duplicate lines or the wrong size, open File Workshop to check the problem and any proposed repair. Then choose Save and continue to quote.
Single parts welcome. The minimum order is £20, and we do not charge VAT because we are not VAT registered.
For stocked material, production is normally 1–2 days. Delivery is next day after dispatch. If we are waiting for material, production takes longer; read the delivery guide and check with us before ordering to a fixed deadline.
Mild steel questions
How should I choose between 1 mm and 6 mm steel?
Choose the thickness your design needs for its load, fixings and use. A thicker sheet changes weight, stiffness and the smallest holes we can cut. The table shows cutting limits, so use a separate design calculation if the part needs to carry a load.
Can I powder coat mild steel?
Textured powder coating is available on supported metal jobs. Check the options for your part and discuss the intended environment if corrosion protection is important.
Will my mild steel part arrive rust-proof?
An uncoated mild steel part needs suitable protection for its environment. Choose an available finish or plan your own preparation and coating.
Can you cut a single steel part?
Yes. Set the quantity to one when quoting. You can compare the price with a batch before ordering.
Need help with your part?
Send your drawing and tell us what you need help with. Include the material and thickness if you know them.
Your design. Made in South Yorkshire.
Let’s make your part.
Upload your DXF or suitable sheet-metal STEP/STP file and choose your options.