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Useful Data

Mass Calculation Formulae
Profile Shape Aluminium Brass Bronze Copper Steel Stainless
  Density: 2.70 g/cm³  8.48 g/cm³ 8.48 g/cm³ 8.93 g/cm³ 7.80 g/cm³ 7.80 g/cm³
 Round Bar (Diameter)² in mm
x 0.002132 =
mass in kg/m
(Diameter)² in mm
x 0.006675 =
mass in kg/m
(Diameter)² in mm
x 0.006924 =
mass in kg/m
(Diameter)² in mm
x 0.00701 =
mass in kg/m
(Diameter)² in mm
x 0.00616 =
mass in kg/m
(Diameter)² in mm
x 0.00631 =
mass in kg/m
 Square Bar (Width across
flats)² in mm x 0.002712 =
mass in kg/m
(Width across
flats)² in mm x 0.00848 =
mass in kg/m
(Width across
flats)² in mm x 0.00882 =
mass in kg/m
(Width across
flats)² in mm x 0.00893 =
mass in kg/m
(Width across
flats)² in mm x 0.00786 =
mass in kg/m
(Width across
flats)² in mm x 0.00804 =
mass in kg/m
 Rectangular Bar (Width x Thickness) in mm x 0.002712
= mass in kg/m
(Width x Thickness) in mm x 0.00848
= mass in kg/m
(Width x Thickness) in mm x 0.00882
= mass in kg/m
(Width x Thickness) in mm x0.00893
= mass in kg/m
(Width x Thickness) in mm x 0.00786
= mass in kg/m
(Width x Thickness) in mm x 0.00804
= mass in kg/m
 Hexagon Rod (Width across
flats)² in mm x 0.00235 =
mass in kg/m
(Width across
flats)² in mm x 0.007344 =
mass in kg/m
(Width across
flats)² in mm x 0.007638 =
mass in kg/m
(Width across
flats)² in mm x 0.00776 =
mass in kg/m
(Width across
flats)² in mm x 0.0068 =
mass in kg/m
(Width across
flats)² in mm x 0.006963 =
mass in kg/m
 Round Tube Wall Thickness x (Outer Diameter minus Wall Thickness) in mm
x 0.0085 =
mass in kg/m
Wall Thickness x (Outer Diameter minus Wall Thickness) in mm
x 0.026641 =
mass in kg/m
Wall Thickness x (Outer Diameter minus Wall Thickness) in mm
x 0.02778 =
mass in kg/m
Wall Thickness x (Outer Diameter minus Wall Thickness) in mm
x 0.028 =
mass in kg/m
Wall Thickness x (Outer Diameter minus Wall Thickness) in mm
x 0.02466 =
mass in kg/m
Wall Thickness x (Outer Diameter minus Wall Thickness) in mm
x 0.0253 =
mass in kg/m
 Irregular Shapes Cross-sectional area in mm²
x 0.002712 =
mass in kg/m
Cross-sectional area in mm²
x 0.00848 =
mass in kg/m
Cross-sectional area in mm²
x 0.00882 =
mass in kg/m
Cross-sectional area in mm²
x 0.00893 =
mass in kg/m
Cross-sectional area in mm²
x 0.00786 =
mass in kg/m
Cross-sectional area in mm²
x 0.00804 =
mass in kg/m
Copper Flat Bar Conductor Fault Current Ratings
Conductor W x T Cross-section kA for 1 sec kA for 3 sec
38 x 5 190mm² 33.4 19.3
38 x 6 228mm² 40.1 23.2
40 x 3 120mm² 21.1 12.2
40 x 6 240mm² 42.2 24.4
50 x 3 150mm² 26.4 15.2
50 x 4 200mm² 35.2 20.3
50 x 5 250mm² 44.0 25.4
50 x 6 300mm² 52.8 30.5
50 x 6.3 315mm² 55.4 32.0
Conductor W x T Cross-section kA for 1 sec kA for 3 sec
12.5 x 3 37.5mm² 6.6 3.8
20 x 1.5 30mm² 5.3 3.0
20 x 3 60mm² 10.6 6.1
25 x 1.5 37.5mm² 6.6 3.8
25 x 3 75mm² 13.2 7.6
25 x 6 150mm² 26.4 15.2
30 x 3 90mm² 15.8 9.1
30 x 5 150mm² 26.4 15.2
38 x 3 114mm² 20.1 11.6
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