90° Bend Allowance Chart: Mild steel, Stainless steel & Aluminum

How To Use Bend Allowance Data?

Example 1 – Bending 1mm mild steel in a 6mm V die

If(f)= Elongation factor
If(d)= Blank development size

d=(20+40)-2f
d=60-(2×0.87)
d=58.26mm

Blank development size

The following tables show the elongation factor(f)of mild steel, stainless steel and aluminium during a 90° bend.

  • V = V-width (mm)
  • t = material thickness (mm)
  • f = bend allowances (mm)

Bend Allowance Chart For Mild Steel

Bend Allowance Chart For Mild Steel
Bend Allowance Chart For Mild Steel

Bend Allowance Chart For Stainless Steel

Bend Allowance Chart For Stainless Steel
Bend Allowance Chart For Stainless Steel

Bend Allowance Chart For Aluminum

Bend Allowance Chart For Aluminum
Bend Allowance Chart For Aluminum
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