British Standard Sheet Metal Thickness

Thickness tolerances considerably tighter for alloys 1050a 3103.

British standard sheet metal thickness.

44 151 526 4777 fax. Swg no inches mm. Relevant en standards for metal sheets and plates. The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material.

Continuously hot rolled strip and plate sheet cut from wide strip of non alloy and alloy steels. Hot rolled steel plates 3 mm thick or above tolerances on dimensions and shape. There is a normal tolerance and also a special tolerance at some thicknesses and widths. Tolerances on plate less than 600 mm wide shall be agreed at time of enquiry order.

Wide strip and plate sheet made of stainless steel. Sheet metal thickness and british standard wire gauge swg. Gauge is defined differently for ferrous iron based and non ferrous metals e g. Non alloy and alloy steels including stainless steels with.

Because of the varying thicknesses a gauge chart should be used to ensure the metal meets the required dimensions. Nominal thickness 3mm 250mm. To reflect manufacturing difficulty the tolerances for alloys 5251 5083 6082 are now wider than this although still a little tighter than in bs1470. Sheet metal thickness and british standard wire gauge swg.

44 560 115 7793 email. Tolerances are given up to 6 5mm thick rather than finishing below 3 0mm. 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. Length and width tolerances these tend to be tighter and are now all on the plus side i e.

For example in one gauge system 18 gauge steel measures 0 0478 inches thick but 18 gauge aluminium is 0 0403 inches thick. Grit blasting prior to galvanizing is usually the most appropriate method and a requirement for a nominal coating thickness of 1000 g m 140 µm has been successfully specified for steel of 6 mm section thickness. Nominal width 600mm. Compared with the old british standard tolerances bs en 10259 has the following differences.