Description
40mm x 25mm x 4mm Mild Steel Angle Iron
Our 40mm x 25mm x 4mm Mild Steel Angle Iron is a versatile unequal mild steel angle section suitable for fabrication, construction, engineering and general metalworking. The unequal legs provide a practical L-shaped profile for brackets, frames, supports, gates, railings, trailers, machinery and workshop projects.
Key Features
- Unequal Angle profile with 40mm and 25mm legs
- 4mm material thickness
- Good weldability and fabrication characteristics
- Suitable for cutting, drilling and general machining
- Can be painted, primed, galvanised or powder coated where appropriate
- Available cut to your required length
Benefits
- Strong and versatile profile for fabricated structures
- Ideal for reinforcing corners and creating rigid frameworks
- Easy to incorporate into welded and bolted assemblies
- Cut-to-length ordering can reduce preparation time and material waste
- Suitable for one-off projects and repeat fabrication work
Structural Grade Information
Mild Steel Angle Iron is commonly supplied in S275JR structural steel to BS EN 10025-2. Selected larger sections may be supplied in S355JR structural steel, depending on section size, supplier and current stock availability.
If your project requires a specific material grade, please contact K I Metals before ordering and obtain written confirmation. Telephone or verbal discussions do not constitute confirmation of supply requirements.
Surface Condition
Mild Steel Angle Iron is supplied with a normal hot rolled mill surface. Mill scale, light oxidation, handling marks and minor cosmetic variation can occur and are normal characteristics of untreated mild steel.
Corrosion Protection
Untreated mild steel can rust when exposed to moisture. For outdoor, decorative or long-term use, consider a suitable primer, paint system, galvanising, powder coating or another available protective finish.
Typical Applications
- Structural and general fabrication
- Frames, brackets and supports
- Gates, railings and fencing
- Trailers and agricultural equipment
- Machinery and workshop projects
- Construction and general engineering
- DIY metalworking and repair projects
Custom Cut to Your Required Length
Enter your required measurement in the Length box before adding the product to your basket. We will cut the material to your selected length with a manufacturing tolerance of ±3 mm.
Customise Your Product
Depending on the selected size and service availability, you can add drilling instructions, upload a hand sketch or engineering drawing, and choose from available decorative, protective or powder-coated finish options.
Also Known As
- Mild Steel Angle
- Steel Angle
- Angle Iron
- Equal Angle
- Unequal Angle
- Equal Angle Iron
- Unequal Angle Iron
- Structural Steel Angle
- L Section
- L Angle
Safety Notice
This product is supplied as-cut and is not deburred. Cut edges may be sharp. Wear suitable protective gloves during handling, fabrication and installation.


























































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