Established In 1949

SHAH DANMAL HUKMAJI JAIN

228, Raviwar Peth, Metal Market, Near Subhanshah Gate Police Station, Pune - 411 002. Maharashtra State, India.
SINCE 1949 Office nos. : +91 - 020 - 24474058. Telefax : +91 - 020 - 24473243. Mobile No. : 9822519391 (Jitendra)

Aluminium Extruded Sections

ALUMNIUM CALCULATIONS

This section contains lists of standard formulae that are commonly used in the extrusion industry, and other useful formulae.

Conversion formulae
 

The following equations are useful for converting imperial units to metric and vice-versa.

 

Millimetres (mm) =

Inches (in) x 25.4

Metres (m) =

Feet (ft) ¸ 3.2808

Kilograms (kg) =

Weight (kg/m) x metres (m)

Weight (kg/m) =

Pounds per foot (lb/ft) x 1.4882

Weight (kg/m) =

Square inches (in 2 ) x 1.7561
 
Weight per metre calculation
 

A simple formula can be used to find the weight per metre of a section by multiplying the area by a constant factor of 0.00271.

W = Weight in kg/m
A = Cross section area in mm 2
0.00271 is the specific gravity of aluminium x 10 -3

Using this expression equations for all the different sections available can be derived.

 
For a round bar
W = Weight in kg/m
d = Diameter of cross section in mm.
 
For a round tube
W = Weight in kg/m
d = Diameter of cross section in mm
t = thickness of tube in mm
 
For a hexagonal bar
W = Weight in kg/m
d = Dimension across flats in mm
 
Fillets on root radii of Tees, Angles and Channels

A = Cross section area in mm 2
r = radius

 
Square bar or rectangular bar
A = Cross section area in mm 2
w = width of section in mm
t = thickness of section in mm
W = Weight in kg/m