British Standard Sheet Metal Thickness

Relevant en standards for metal sheets and plates.

British standard sheet metal thickness.

Non alloy and alloy steels including stainless steels with. Length and width tolerances these tend to be tighter and are now all on the plus side i e. Specified minimum yield strength 700 n mm2. Swg no inches mm.

Wide strip and plate sheet made of stainless steel. Continuously hot rolled strip and plate sheet cut from wide strip of non alloy and alloy steels. 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. For example in one gauge system 18 gauge steel measures 0 0478 inches thick but 18 gauge aluminium is 0 0403 inches thick.

Thickness tolerances considerably tighter for alloys 1050a 3103. The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material. 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 width 600mm.

Tolerances on plate less than 600 mm wide shall be agreed at time of enquiry order. Tolerances are given up to 6 5mm thick rather than finishing below 3 0mm. 44 560 115 7793 email. Sheet metal thickness and british standard wire gauge swg.

44 151 526 4777 fax. Unit 4 yakira buildings 83 sefton lane maghull liverpool l31 8bu. Compared with the old british standard tolerances bs en 10259 has the following differences. Sheet metal thickness and british standard wire gauge swg.

There is a normal tolerance and also a special tolerance at some thicknesses and widths. To reflect manufacturing difficulty the tolerances for alloys 5251 5083 6082 are now wider than this although still a little tighter than in bs1470. Hot rolled steel plates 3 mm thick or above tolerances on dimensions and shape. Because of the varying thicknesses a gauge chart should be used to ensure the metal meets the required dimensions.