Compared with the old british standard tolerances bs en 10259 has the following differences.
British standard sheet metal thickness.
Gauge is defined differently for ferrous iron based and non ferrous metals e g.
Because of the varying thicknesses a gauge chart should be used to ensure the metal meets the required dimensions.
Tolerances are given up to 6 5mm thick rather than finishing below 3 0mm.
Specified minimum yield strength 700 n mm2.
Relevant en standards for metal sheets and plates.
Thickness tolerances considerably tighter for alloys 1050a 3103.
Swg no inches mm.
Sheet metal thickness and british standard wire gauge swg.
44 560 115 7793 email.
Tolerances on plate less than 600 mm wide shall be agreed at time of enquiry order.
The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material.
44 151 526 4777 fax.
Sheet metal thickness and british standard wire gauge swg.
Wide strip and plate sheet made of stainless steel.
Manufacturers standard gauge for sheet steel is based on an average density of 41 82 lb per square foot per inch thick equivalent to 501 84 pounds per cubic foot 8 038 7 kg m 3.
Length and width tolerances these tend to be tighter and are now all on the plus side i e.
There is a normal tolerance and also a special tolerance at some thicknesses and widths.
Unit 4 yakira buildings 83 sefton lane maghull liverpool l31 8bu.
To reflect manufacturing difficulty the tolerances for alloys 5251 5083 6082 are now wider than this although still a little tighter than in bs1470.
Non alloy and alloy steels including stainless steels with.
Gauge or gage sizes are numbers that indicate the thickness of a piece of sheet metal with a higher number referring to a thinner sheet.
Nominal thickness 3mm 250mm.
Nominal width 600mm.
Continuously hot rolled strip and plate sheet cut from wide strip of non alloy and alloy steels.