
FLAT BAR
- •Easy fabrication
- •Standard-compliant strength and durability
SPECIFICATION
- Thickness :
- 3-30
- Width :
- 20-100
- Mass :
- 0.47-23.60

The high strength steel flat bar is a rectangular-section steel product designed for applications requiring stability, strength, and workability. It is made from carbon structural steel or low-alloy structural steel and undergoes strict dimensional control, offering flatness, straightness, and consistent thickness across the full length.
This type of flat bar is especially popular in engineering and manufacturing environments that require components to be cut, welded, bolted, or formed with precision.
| Width (mm) | Thickness (mm) | ||||||||||
| 3 | 5 | 6 | 8 | 10 | 12 | 15 | 16 | 20 | 25 | 30 | |
| Mass(kg/m) | |||||||||||
| 20 | 0.47 | 0.78 | 1.26 | ||||||||
| 25 | 0.98 | 1.57 | 1.96 | ||||||||
| 30 | 1.18 | 1.88 | 2.35 | ||||||||
| 35 | 1.37 | 2.20 | 2.75 | ||||||||
| 40 | 1.57 | 2.51 | 3.14 | 3.77 | 5.02 | 6.28 | |||||
| 45 | 1.77 | 2.82 | 3.53 | 4.24 | 5.65 | 7.07 | |||||
| 50 | 1.96 | 3.14 | 3.92 | 4.74 | 6.28 | 7.85 | |||||
| 60 | 2.36 | 2.83 | 3.77 | 4.71 | 5.65 | 7.07 | 7.53 | 9.42 | 11.80 | 14.10 | |
| 65 | 2.55 | 3.06 | 4.08 | 5.10 | 6.12 | ||||||
| 70 | 2.75 | 3.30 | 4.40 | 5.50 | 6.59 | 8.79 | 10.99 | ||||
| 75 | 3.53 | 4.71 | 5.89 | 7.07 | 8.83 | ||||||
| 80 | 3.14 | 3.77 | 5.02 | 6.28 | 7.54 | 10.05 | 12.60 | ||||
| 90 | 4.24 | 5.65 | 7.07 | 8.48 | 11.30 | ||||||
| 100 | 3.93 | 4.71 | 6.28 | 7.85 | 9.42 | 11.80 | 12.30 | 15.70 | 19.60 | 23.60 |
Excellent tensile and yield strength, suitable for structural reinforcement and frame construction.
Adaptable to a wide range of engineering and construction uses—from platforms and ladders to reinforcing plates and fabricated components.
Supports cutting, punching, drilling, forming, and welding without significant deformation or loss of mechanical properties.
Manufactured with tight tolerance control, providing smooth edges and consistent flatness, reducing secondary machining time.
Can be supplied with protective finishes like oil coating or hot-dip galvanizing to enhance rust resistance.

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