A36 Sheet Metal Bend Radius

We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts.

A36 sheet metal bend radius.

Use this document to choose values that are both manufacturable and meet your needs. It also contains the use of astm a36 such as it is commonly used in bars sheet plates steel coils steel pipes forged and other materials application. Try forming a radius smaller than the minimum and you crease the center of the radius giving you a sharp bend. Bend radii minimum bend sizes.

If your radius is 125. The perfect bend has a radius that s equal or close to the material thickness. Divide 50 by the material s reduction percentage as specified by the material supplier subtract by 1 and then multiply by the plate thickness. The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications.

Subtract twice the leg length from the initial length to determine the bend allowance. 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. Plug the bend allowance ba the bend angle b inside radius ir and material thickness mt into the below equation to determine the k factor k. Table 1 preferred recommended 90 degree bend radii for various sheet metals.

It is possible to choose other bends if you require but additional lead time and tooling charges may apply. The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase. There are inside bend radius recommendations listed for some of the steel grades that we stock. For example using a steel plate an ibr recommendation of 1 5t would equal an inside bend radius of 3 8 250 x 1 5 375.

Specifically the perfect bend s radius ranges from the minimum radius value up to 125 percent of the material thickness. Recommended minimum bend radii for steel and aluminum. You described a rough rule to find a steel s minimum bend radius. This page is mainly introduced the astm a36 datasheet including chemical information mechanical properties physical properties mechanical properties heat treatment and micro structure etc.

For our example it comes to. 4 1 893 2 214. The same inside bend radius cannot be used for all steel grades. The minimum bend radius data shown in these charts is measured to the inside of the bend.

They are shown in relation to the material thickness. Specifing a bend radius from here will help prevent hair line cracks.