20mm Width x 3mm Thick Plain Flat Steel Bar Section

20 x 3mm Flat Steel Bar

Our mild flat steel bars are available in S275 grade. Engineers and contractors use flat bar extensively in the manufacture of support braces, latches, mechanical parts, industrial tools, etc., as well as for many DIY projects.

For those in need of sturdy and reliable steel material, the mild steel flat bars offers a versatile solution. As a popular choice in the construction and manufacturing industries, this steel strip provides a solid foundation for various structures and machinery. With its uniform width and thickness, the mild steel flat bar offers consistent strength and durability for a wide range of applications.

As a result of its good to excellent formability, mild steel flat bar can easily be joined by welding processes or by means of fixings such as rivets, bolts and screws.

Speciality Metals offers a high-quality flat steel bar section in 20mm width and 3mm thickness in different lengths. As a result of its durability, versatility, cost-effectiveness and versatility, flat steel bars are an excellent choice for different projects. Due to its great welding, forming, bending and machining capabilities, it can be easily shaped and manipulated to meet specific requirements. As a recyclable and malleable material, flat steel bars are economical and environmentally friendly. This flat steel bar is a top pick for those seeking a reliable and effective material for their construction needs because of its outstanding functionality and strength.

Key information:

• Width – 20mm
• Thickness – 3mm
• Shape – Flat
• Grade –S275
• Finish – Mill

Speciality Metals are the best suppliers for you because:

• FREE UK delivery on all orders
• Order dispatch within 24 hours of order
• Located in Warrington, UK which is the UK home of mesh and metals
• Our experienced staff are experts in the mesh market and care personally about your customer experience

We also carry a wide range of mild steel sheet metal, angle iron and round tube.

How Does Temperature Affect Mild Flat Steel Bars?

The temperature has a multifaceted impact on mild flat steel bars. As the temperature rises, steel expands and as it cools, it contracts; this thermal expansion and contraction can lead to movement in structures or assemblies using steel. In extreme temperature fluctuations, repeated expansion and contraction might introduce stresses, potentially leading to fatigue over time. On a molecular level, elevated temperatures can alter the steel’s physical properties. When mild steel is heated to certain thresholds, it can soften, decreasing its tensile strength and yield strength. Conversely, at extremely low temperatures, mild steel can become more brittle and susceptible to fractures. Moreover, temperature can indirectly exacerbate corrosion; warm conditions can accelerate oxidation, especially if moisture is present. It’s crucial to understand these temperature-driven behaviors when using mild flat steel bars in environments subject to temperature variations, ensuring the longevity and functionality of the steel in its intended application.

How do you Clean Mild Flat Steel Bar?

Cleaning mild flat steel bars is essential to maintain their appearance and prevent rust or other forms of deterioration. 

1. Safety First: Always wear appropriate safety gear, including gloves and safety glasses, to protect yourself from sharp edges or any chemical splashes.

2. Dust and Loose Debris: Begin by wiping off the steel bar with a dry cloth or using a soft brush to remove any dust or loose debris.

3. Soap and Water: For general dirt and grime, use a mix of mild soap (like dishwashing soap) and water. Wet a cloth or sponge with the soapy water and wipe down the steel bar. For more stubborn spots or stains, scrub gently using a soft-bristle brush.

4. Rust Spots: If you notice any rust spots:

   • Use a fine-grit sandpaper or steel wool to gently scrub the rust away. Always move in the direction of the grain or polish of the steel to avoid scratching.
   • Alternatively, you can apply a rust remover or converter product. Follow the manufacturer’s instructions carefully if you choose this method.

5. Rinse: After cleaning, it’s essential to rinse off any soapy residue or chemicals. Use a cloth dampened with clean water to wipe down the steel bar. Avoid letting the steel sit in standing water, as this can promote rusting.

6. Dry: Once rinsed, immediately dry the steel bar using a clean, dry cloth. This step is vital to prevent water spots or the formation of rust.

7. Protection: To prevent rust and maintain the steel’s appearance:

   • Consider applying a thin layer of mineral oil or a specialised metal protectant product. This forms a barrier against moisture and air, reducing the chance of oxidation.
   • If the bar will be used in an environment prone to moisture, you might also consider coating it with a rust-preventative paint or finish.

Can Mild Steel Flat Bars be Anodised?

Mild steel flat bars cannot be anodised in the same way that non-ferrous metals, particularly aluminum, can be. Anodising is a controlled oxidation process that forms a protective oxide layer on the surface of metals like aluminum. The process makes the metal more durable, corrosion-resistant and receptive to dyes. Mild steel, being iron-based, naturally forms an oxide (rust) when exposed to the environment, but this oxide doesn’t offer protective benefits. Instead, it can compromise the steel’s structural integrity. For mild steel, other protective coatings and treatments, such as galvanising, powder coating or painting, are used to enhance its resistance to corrosion. If the goal is to achieve a color finish or added protection for mild steel flat bars, it’s recommended to explore these other options rather than anodising.