Ullrich Extruded Products Catalogue

Aluminium extrusions... virtually any shape desired by the customer can be produced

Ullrich Aluminium: Useful Formulae

To calculate Nominal mass (kg/m) of extruded aluminium sections, tube, etc: download pdf file of linear conversion tables

(a) Calculate cross-section area (mm²)
(b) Multiply by 0.00271

To calculate Factor (i. e. the "difficulty of extrusion" factor)

(a) Calculate the perimeter of the section (Note: for hollows, add outside perimeter and inside perimeter)
(b) Divide this by the nominal kg/m of the section

NOMINAL MASS (kg/m²) of aluminium sheet and plate

Thickness mm	Nominal kg/m²	Thickness mm	Nominal kg/m²
0.5	1.355	3.0	8.130
0.6	1.626	4.0	10.840
0.7	1.897	5.0	13.550
0.8	2.168	6.0	16.260
0.9	2.439	8.0	21.680
1.0	2.710	10.0	27.100
1.2	3.252	12.0	32.520
1.6	4.336	16.0	43.360
2.0	5.420	20.0	54.200
2.5	6.775	25.0	67.750

Metric Conversion Data
Length:	1 inch = 25.4mm 1 foot = 0.305m	1 mm = 0.0394 inches 1 m = 3.28 feet
Area:	1 sq inch = 645mm² 1 sq foot = 0.0929m²	1 mm² = 0.00155 sq inches 1 m² = 10.8 sq feet
Volume:	1 cubic inch = 16387mm³	1mm³ = 0.000061 cubic inches
Force:	1 pound per foot = 4.45 Newtons	1 Newton = 0.225 pounds per foot
Stress:	1 pound per sq inch = 0.00689MPa	1 MPa = 145 pounds per sq inch

Download pdf file of linear conversion tables

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