Stainless Steel Sheet Bend Radius

Determining the minimum internal radius for a bend in sheet metal.

Stainless steel sheet bend radius.

Hi my machine bending in radius 3 mm k faktor is 0 45 is it correct or not. Aluminum where necessary 5052 h32 may be bent to 1t and 6061 t6 to 1 1 2t. The minimum bend radius data shown in these charts is measured to the inside of the bend. 22 gauge 0 030 0 76 mm.

You described a rough rule to find a steel s minimum bend radius. If the product contains one or more sharp bends use the dimensions from the sharp tables for all bends in. Divide 50 by the material s reduction percentage as specified by the material supplier subtract by 1 and then multiply by the plate thickness. We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts.

The hardness of the metal. 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. These dimensions are all in relation to a 90 angle. A general guideline the minimum metal bend radius is approximately equal to the material thickness.

Let s say i have a 2 mm thick sheet and i want to bend it. Some form of analysis may be requried. Aluminum 5052 or 3003. Steel 304 1 mm thick.

To keep it simple i also use a 2 mm inside radius. The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase. It is possible to choose other bends if you require but additional lead time and tooling charges may apply. Recommended minimum bend radii for steel and aluminum.

Generally speaking the thicker a piece of sheet metal is the wider the internal bend radius will. Maximum sheet thickness for aluminum and stainless steel is 6 mm. Maximum weight is 40 kg. 22 gauge 0 030 0 76 mm 0 5 12 7mm.

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. Specifing a bend radius from here will help prevent hair line cracks. The thickness of the metal. Steel american iron and.

Category thickness minimum bend bend radius. Bend radii and k factors for 304 stainless steel sheet metal components share. Maximum sheet thickness for all other steel is 6 mm. The following tables showing the minimum bend radius allowable in air bending process for aluminum and steel or stainless steel.

Table 1 preferred recommended 90 degree bend radii for various sheet metals. 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. 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.