British Standard Sheet Metal Thickness

Tolerances on plate less than 600 mm wide shall be agreed at time of enquiry order.

British standard sheet metal thickness.

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. Unit 4 yakira buildings 83 sefton lane maghull liverpool l31 8bu. 44 151 526 4777 fax. Relevant en standards for metal sheets and plates.

Continuously hot rolled strip and plate sheet cut from wide strip of non alloy and alloy steels. Sheet metal thickness and british standard wire gauge swg. 44 560 115 7793 email. 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.

Swg no inches mm. Gauge is defined differently for ferrous iron based and non ferrous metals e g. Sheet metal thickness and british standard wire gauge swg. Non alloy and alloy steels including stainless steels with.

Wide strip and plate sheet made of stainless steel. Nominal thickness 3mm 250mm. Nominal width 600mm. Because of the varying thicknesses a gauge chart should be used to ensure the metal meets the required dimensions.

For example in one gauge system 18 gauge steel measures 0 0478 inches thick but 18 gauge aluminium is 0 0403 inches thick. Specified minimum yield strength 700 n mm2. Length and width tolerances these tend to be tighter and are now all on the plus side i e. To reflect manufacturing difficulty the tolerances for alloys 5251 5083 6082 are now wider than this although still a little tighter than in bs1470.

There is a normal tolerance and also a special tolerance at some thicknesses and widths. Thickness tolerances considerably tighter for alloys 1050a 3103. 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. Tolerances are given up to 6 5mm thick rather than finishing below 3 0mm.