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Black Flats

Black flat bar is a versatile mild steel flat bar used across construction, engineering and workshop applications. IMS supplies black flats in a wide range of sizes, with S275JR grade options available for fabrication and general steelwork use.

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Black flat bar is a versatile mild steel flat bar used across construction, engineering and workshop applications. IMS supplies black flats in a wide range of sizes, with S275JR grade options available for fabrication and general steelwork use.

Key benefits:

  • Flat profile makes it easy to cut, drill, weld and form for different project requirements
  • Suitable for brackets, frames, reinforcement, edging and general steel fabrication
  • Available in multiple widths and thicknesses to suit a range of fabrication and structural applications
  • Supplied in standard bar lengths, with size options to match common trade and industrial needs

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View Black Flats FAQS

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DESIGNATION PRICE (PER BAR)
25 x 3mm from £9.10 inc VAT VIEW
30 x 6mm from £18.18 inc VAT VIEW
25 x 5mm from £15.10 inc VAT VIEW
25 x 6mm from £18.18 inc VAT VIEW
25 x 8mm from £24.19 inc VAT VIEW
25 x 10mm from £30.20 inc VAT VIEW
30 x 3mm from £10.94 inc VAT VIEW
30 x 5mm from £18.18 inc VAT VIEW
30 x 8mm from £28.97 inc VAT VIEW
30 x 10mm from £36.36 inc VAT VIEW
40 x 3mm from £14.48 inc VAT VIEW
40 x 5mm from £24.19 inc VAT VIEW
40 x 6mm from £28.97 inc VAT VIEW
40 x 8mm from £38.68 inc VAT VIEW
40 x 10mm from £48.38 inc VAT VIEW
40 x 15mm from £72.58 inc VAT VIEW
40 x 20mm from £96.77 inc VAT VIEW
50 x 3mm from £18.18 inc VAT VIEW
50 x 5mm from £30.20 inc VAT VIEW
50 x 6mm from £36.36 inc VAT VIEW
50 x 8mm from £48.38 inc VAT VIEW
50 x 10mm from £60.55 inc VAT VIEW
50 x 12mm from £72.58 inc VAT VIEW
50 x 15mm from £90.76 inc VAT VIEW
60 x 5mm from £36.36 inc VAT VIEW
60 x 6mm from £43.61 inc VAT VIEW
60 x 8mm from £58.09 inc VAT VIEW
60 x 10mm from £72.58 inc VAT VIEW
65 x 10mm from £78.58 inc VAT VIEW
65 x 12mm from £94.30 inc VAT VIEW
70 x 6mm from £50.84 inc VAT VIEW
70 x 8mm from £67.80 inc VAT VIEW
70 x 10mm from £84.74 inc VAT VIEW
75 x 6mm from £54.40 inc VAT VIEW
75 x 10mm from £90.76 inc VAT VIEW
80 x 6mm from £58.09 inc VAT VIEW
80 x 8mm from £77.35 inc VAT VIEW
80 x 10mm from £96.77 inc VAT VIEW
90 x 10mm from £108.94 inc VAT VIEW
100 x 3mm from £36.36 inc VAT VIEW
100 x 5mm from £60.55 inc VAT VIEW
100 x 6mm from £72.58 inc VAT VIEW
100 x 8mm from £96.77 inc VAT VIEW
100 x 10mm from £120.95 inc VAT VIEW
100 x 15mm from £181.81 inc VAT VIEW
100 x 20mm from £241.91 inc VAT VIEW
120 x 6mm from £87.06 inc VAT VIEW
120 x 10mm from £145.14 inc VAT VIEW

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Black Flats FAQs

What does “black” mean in black flat bar?

“Black” refers to the hot rolled mill finish on the steel surface. It usually has a darker, scaled appearance compared with bright steel, which has a smoother, cleaner finish.

What is the difference between black flat bar and a bright flat bar?

Black flat bar is hot rolled and suited to general fabrication and structural use, while bright flat bar is usually smoother and more accurate for applications where finish and tighter tolerances matter.

Can black flats be used outdoors?

Yes, black flats can be used outdoors, but they should be painted, primed, galvanised, or otherwise protected if they will be exposed to moisture or weather.

When should I choose black flat bar instead of a steel plate?

Black flat bar is a practical choice when you need a long, narrow steel section. Steel plate is better when you need wider sheet-like coverage or larger flat pieces cut to shape.

Are black flats suitable for making brackets?

Yes, black flats are commonly used for brackets because the flat surface is easy to mark, cut, drill and fix into position.