The internal radius R of press brake air bending is approximately 16% of the die opening V. You can use the press brake radius calculator to get the most accurate data.
Min Bending Radius
|No.||Materials||Min bending radius|
|1||08, 08F, 10, 10F, DX2, SPCC, E1-T52, 0Cr18Ni9, 1Cr18Ni9, 1Cr18Ni9Ti, 1100-H24, T2||0.4t|
|2||15, 20, Q235, Q235A, 15F||0.5t|
|3||25, 30, Q255||0.6t|
|4||1Cr13, H62（M, Y, Y2, cold rolled）||0.8t|
|7||65Mn, 660SiMn, 1Cr17Ni7, 1Cr17Ni-Y, Cr17Ni-DY, SUS301, 0Cr18Ni9, SUS302||2.0t|
- The bending radius refers to the inner radius of the bending part, and t is the wall thickness of the material.
- t is the wall thickness of the material, M is the annealed state, Y is the hard state, and Y2 is the 1/2 hard state.