Stainless Steel Sheet Bend Radius

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Stainless steel sheet bend radius.

Determining the minimum internal radius for a bend in sheet metal. Aluminum 5052 or 3003. The thickness of the metal. 22 gauge 0 030 0 76 mm.

The minimum bend radius data shown in these charts is measured to the inside of the bend. If the product contains one or more sharp bends use the dimensions from the sharp tables for all bends in. You described a rough rule to find a steel s minimum bend radius. Table 1 preferred recommended 90 degree bend radii for various sheet metals.

Maximum dimensions are 2980 x 1200 mm. We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts. Maximum weight is 40 kg. Divide 50 by the material s reduction percentage as specified by the material supplier subtract by 1 and then multiply by the plate thickness.

There are a two major factors that affect how tight you can make the internal radius of a bend in a piece of sheet metal. The hardness of the metal. Generally speaking the thicker a piece of sheet metal is the wider the internal bend radius will. The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase.

Category thickness minimum bend bend radius. I have a sheet metal bending table for most gages of sheet metal but not many for ss which is why i was asking this forum. Bend radii and k factors for 304 stainless steel sheet metal components share. Let s say i have a 2 mm thick sheet and i want to bend it.

Steel 304 1 mm thick. Hi my machine bending in radius 3 mm k faktor is 0 45 is it correct or not. A general guideline the minimum metal bend radius is approximately equal to the material thickness. To keep it simple i also use a 2 mm inside radius.

It is possible to choose other bends if you require but additional lead time and tooling charges may apply. Some form of analysis may be requried. Maximum sheet thickness for aluminum and stainless steel is 6 mm. I can now see that the minimum flange length is 8 5 mm for such a bend so i have to keep it in mind when designing.

Recommended minimum bend radii for steel and aluminum. 22 gauge 0 030 0 76 mm 0 5 12 7mm. Aluminum where necessary 5052 h32 may be bent to 1t and 6061 t6 to 1 1 2t. In a previous bending basics article you mention a material s tensile reduction percentage used for calculating the minimum inside bend radius of various metals.

Since commercial sheet metal bending can be done with less concern for stresses caused during forming operation the radius can be near zero for thin sheet metal. The following tables showing the minimum bend radius allowable in air bending process for aluminum and steel or stainless steel. Specifing a bend radius from here will help prevent hair line cracks.