Skip to main content
Speclore

Mild Steel Flats

Reference data and engineering information about mild steel flats for material properties applications.

mildsteelflats

Overview

Engineering reference data for Mild Steel Flats in material science and properties.

Key Formulas

Stress

σ=FA\sigma = \frac{F}{A}

Force per unit area.

Strain

ε=ΔLL0\varepsilon = \frac{\Delta L}{L_0}

Change in length per original length.

Hooke's Law

σ=Eε\sigma = E \varepsilon

Stress proportional to strain in elastic region.

Thermal Expansion

ΔL=αL0ΔT\Delta L = \alpha L_0 \Delta T

Length change due to temperature.

Variables

SymbolDescriptionUnit
σ\sigmaStressPa
ε\varepsilonStrain
EEYoung's modulusPa
α\alphaThermal expansion coefficient1/°C
ΔT\Delta TTemperature change°C

Steel Flats Weight Reference Table

53 rows
Standard mild steel flat bars — sizes and unit weights
Flat Size(mm)
Weight(kg/m)
13 × 30.31
13 × 60.61
16 × 30.38
20 × 30.47
20 × 50.79
20 × 60.94
20 × 101.57
25 × 30.59
25 × 50.98
25 × 61.18
25 × 81.57
25 × 101.96
25 × 122.36
30 × 30.71
30 × 51.18
30 × 61.41
30 × 81.88
30 × 102.36
30 × 122.83
30 × 204.71
35 × 61.65
35 × 102.75
35 × 123.3
35 × 205.5
40 × 30.94
40 × 51.57
40 × 61.88
40 × 82.51
40 × 103.14
40 × 123.77
40 × 154.71
40 × 206.28
40 × 257.85
40 × 309.42
45 × 31.06
45 × 62.12
45 × 82.83
45 × 103.53
45 × 124.24
45 × 155.29
45 × 207.07
45 × 258.83
50 × 31.18
50 × 51.96
50 × 62.36
50 × 83.14
50 × 103.93
50 × 124.71
50 × 155.98
50 × 207.85
50 × 259.81
50 × 3011.8
50 × 4015.7

Source: engineeringtoolbox.com

Quick Notes

  • Weights are based on a steel density of 7,850 kg/m³ (the constant 0.0075 in the formula accounts for unit conversion from mm to m).
  • Dimensions are given as width × thickness in millimetres.
  • All values assume solid, mild steel flats with no coatings or surface treatments.

Interactive Charts

Steel flats weight

References