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Technical

Info
Conversion Factors
Corrosion Resistance Data
Equivalents of Std Wire Gauges
Fractions of Inches
Hardness Comparison Table
Nominal Composition of SS
Pipe Working Pressures
Useful Conversion Formulae
Theoretical Mass Calculation

Useful Conversion Formulae

  • Circumference of a circle = diameter x 22/7 (or 3.1416)
  • Area of a circle = square of the diameter x 0.7854
  • Area of a square, rhombus or rhomboid = base x height
  • Area of a triangle = 1/2 base x perpendicular height
  • Area of a trapezium = 1/2 sum of two parellel sides x height
  • Area of any rectilinear figure of four or more unequal sides is found by dividing it into triangles, finding the area of each, and adding together
  • Area of any regular polygon = 1/2 radius of inscribed circle x length of sides x number of sides
  • Area of a parabola = base x height x 2/5
  • Area of an elipse = long axis x short axis x 0.7854
  • Surface of a prism or cylinder = area of two ends + (length x perimeter); volume = area of base x height
  • Surface of a cone or pyramid = 1/2 (slant height x perimeter of base) + area of base; volume = 1/3 (area of base x perpendicular height)
  • Surface of a cube or parallelepiped = sum of areas of all sides; volumes = length x breadth x depth
  • Surface of a sphere = square of diameter x 3.1416; volume = cube of diameter x 0.5236
  • Area of a sector of a circle = length of arc x 1/2 radius
  • Area of a segment of a circle = area of a sector less area of a triangle
  • Side of a square of area equal to a circle = diameter x 0.8862
  • Diameter of a circle equal in area to a square = side x 1.1284
  • Area of a regular hexagon = 0.8661 x (width across flats)2; width of flats
  • Area of a regular octagon = 0.8284 x (width across flats)2; width of flat = 0.4142 x width across flats

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Technical

Technical
Conversion Factors
Corrosion Resistance Data
Equivalents of Std Wire Gauges
Fractions of Inches
Hardness Comparison Table
Nominal Composition of SS
Pipe Working Pressures
Useful Conversion Formulae
Theoretical Mass Calculation

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