h
📍 Byron House, 4 Willow Drive, Sherwood Park, Annesley, NG15 0DP
Mon–Fri 08:00–17:00📞 01623 687 660✉ sales@parksidesteel.uk.com
Engineering Steel Bar — Flat Bar

Flat Bar.
Wide Range of W × T Combinations.

Bright drawn flat bar in engineering steel grades — a wide range of width and thickness combinations. Wear strips, slideways, keys, brackets and general flat stock. Metric sizes. Cut to length from one piece.

Wide rangeW × T combinations
Bright drawnh9–h11 tolerance
MetricSizes stocked
1 pieceMin order
Blue cantilever racking showing flat bar, square bar and round bar with colour-coded grade identification
About This Profile

What is Flat Bar?

Flat bar is bright drawn to a rectangular cross-section. It is specified for components where width significantly exceeds thickness — wear strips, slideways, keys, brackets, spacers and general flat stock. The bright drawn condition gives a clean surface and consistent dimensions.

EN8 flat bar is the most common specification for wear strips and slideway components in machine tools and general engineering. S355 hot-rolled flat bar is used for structural brackets, supports and fabricated assemblies.

Tolerances

Dimensional Standards.

Width and thickness tolerances per BS EN 10278 for bright flat bar. Hot-rolled flat bar (S355, structural grades) to BS EN 10058. Width tolerance is typically h11; thickness varies by size. Enquire for specific size availability.

Full tolerance tables by diameter: BS EN 10278 reference ›

Size Range

Available Sizes.

Stocked in both metric and imperial sizes. Cut to any length from 1 piece. −0/+2mm standard cut tolerance.

GradeSize RangeConditionStandard
EN8 (080M40)Various W×TBright drawnBS EN 10278
EN8D (080A42)Various W×TBright drawnBS EN 10278
EN3B (070M20)Various W×TBright drawnBS EN 10278
EN1A (230M07)Selected sizesBright drawnBS EN 10278
S355 J2Various W×THot rolledBS EN 10058
Applications

Typical Applications.

  • Slideway wear strips and guide surfaces
  • Machine bed and frame brackets
  • Keys and drive components
  • Spacers and shims
  • Fabricated structural brackets (S355)
  • Wear-resistant blades (EN9)
Related Technical Guides

Go Deeper.

Grade Equivalents Bright Bar Tolerances Weight Calculator
Steel Grades Available in Flat Bar

Choose Your Grade.

All grades listed below are available in flat bar. Click any grade for full data sheet, chemical composition and mechanical properties.

EN8080M40General flat bar, wear stripsEN8D080A42Medium carbon — supplied to analysisEN3B070M20Weldable mild steel flatEN1A230M07Free-cutting flat componentsS355S355J2Structural flat barBMS080A15Bright mild steel — weldable, general purpose

Ready to Order Flat Bar?

Tell us your grade, size and quantity. We confirm stock, price and delivery date on the same call.

📞 01623 687 660 Request a Quote ►