Black Mild Steel Channel S275

S275 black mild steel channels are strong, versatile metal sections commonly used across the construction, engineering, and manufacturing industries. Also known as U channel or C channel, this mild steel product features a channel-shaped profile that boasts strength, stability and structural support while being relatively lightweight and easy to work with. 

Black mild steel refers to steel with a dark, matte surface finish that’s typically grey or charcoal in appearance. This colouration comes from the hot rolling process, where the steel is rolled at high temperatures above its recrystallisation temperature. This process creates a tough surface and removes the need for further surface treatment before fabrication.

At Buy Metal Online, we supply black mild steel channel S275 in 1000mm lengths and a wide range of black mild steel channel sizes to suit your needs. If you have any specific dimensions in mind, please contact our team to discuss your project requirements.

Our black mild steel channels are made from S275 grade steel, an unalloyed low-carbon steel known for its good machinability and excellent weldability. Supplied as hot rolled, this steel grade offers reliable performance in a wide range of fabrication and structural uses.

Key Qualities of Black Mild Steel Channel S275

Our black mild steel channel S275 offers the strength and durability needed for structural and industrial use.

Specification: EN 10025-2

Key Characteristics:

• • Bending / Forming: Fair
• • Corrosion Resistance: Poor*
• • Machining / Grinding: Good
• • Wear Resistance: Fair
• • Welding: Excellent

*Although corrosion resistance is low in its untreated form, S275 black mild steel channels are often painted or galvanised after fabrication to improve durability in outdoor or exposed environments.

Physical Properties:

• • Density: 7800 KG/m³
• • Electrical Resistance: 0.20 – 0.25 µΩm
• • Elongation (in 200mm): 20%
• • Hardness (Vickers): 115 – 154 HV
• • Melting Point: 1460°C
• • Modulus of Elasticity: 210 GPa
• • Shear Modulus: 80 GPa
• • Tensile Strength: 370 – 530 N/mm²
• • Thermal Conductivity: 50 W/m°K
• • Thermal Expansion: 11 µm/m-K
• • Yield Strength: 275 N/mm²

Benefits of S275 Black Mild Steel Channel

Our black mild steel channels offer a range of benefits for builders, engineers, and fabricators:

• • Cost-Effective: S275 black mild steel is a low-cost material suitable for both small and large-scale projects, making it a strong yet affordable choice.
• • Easy to Fabricate: The hot-rolled finish and low carbon content make it ideal for welding and general machining – suitable for sawing, drilling, and machining with standard tools.
• • Structural Integrity: The U-shaped profile delivers strength and support where needed.
• • Versatility: Used across a wide range of commercial and industrial projects for indoor use and outdoor environments when treated.

Popular Uses for Black Mild Steel Channel S275

Thanks to their strength and adaptability, black mild steel channels are used in many industries for both structural and decorative applications. Common uses include:

• • Automotive Parts: Used in frames, chassis components, and structural parts.
• • Structural Steelwork: Essential for supporting lintels above doors, floor joists, and bridge components in construction projects, as well as frameworks and reinforcements for garages and warehouses.
• • Fencing and Gates: Provides strong borders and support for fencing systems.
• • Furniture: Used in industrial-style furniture and fittings.
• • Décor: Great for architectural and interior metal features.
• • Signage: Structural support for signs and display boards.
• • Nails and Fixings: Raw material for various metal fasteners.
• • Wire Products: Often used as feedstock in the manufacturing of wire and mesh.
• • Machinery and Engineering Projects: Commonly used in machinery framing, support braces, mechanical latches, and industrial tools.
• • DIY Projects: A popular material for custom fabrication, including workshop builds, storage systems, and home improvement tasks.

Order S275 Black Mild Steel Channels from Buy Metal Online

At Buy Metal Online, we supply high-quality S275 black mild steel channels in various sizes and lengths to suit your project. Take advantage of our best price guarantee, along with free UK delivery on orders over £100. Plus, get 10% off orders over £100 or 5% off your first order when you shop with us.

Choose Buy Metal Online for top-quality materials, fast delivery, and excellent customer service. Order your S275 black mild steel channel today!

Why buy from Buy Metal Online?

• Best price guarantee
• Free delivery for £100+ orders to UK mainland
• 10% off £100+ orders
• 5% off first orders