Model HD FORMING & FLANGING MACHINE

BEND TABLES

MINIMUM RADII OF CURVED EDGES IN DIFFERENT FLANGE HEIGHTS

Aluminum Alloy-2024-0 Formed before heat treatment

HEIGHT OF CURVED FLANGEMin. Thick-
ness
Min Bend RadiiMin. Curve RadiiMax. Thick-
ness
Min. Bend RadiiMin. Curve Radii
1/4.0201/323.0511/164
5/16.0201/323.0641/165
3/8.0321/324.0723/326
7/16.0321/325.0813/327 1/2
1/2.0321/326.0911/89
9/16.0321/328.1021/810 1/2
5/8.0321/329.1251/812
3/4.0401/3211.1253/1615
7/8.0401/1613.1563/1617
1.0401/1616.1881/419
1 1/8.0621/1619.1881/422
1 1/4.0621/1622.1881/425
1 3/8.0911/825.1881/427
1 1/2.0911/828.1881/435

Stainless Steel Type 302 or 309

HEIGHT OF CURVED FLANGEMin. Thick-
ness
Min Bend RadiiMin. Curve RadiiMax. Thick-
ness
Min. Bend RadiiMin. Curve Radii 
1/4.0253/643.0501/166
5/16.0313/644.0625/647 1/2
3/8.0313/645.0625/649
7/16.0313/646.0785/6410 1/2
1/2.0313/648.0785/6412
9/16.0491/167.0785/6413
5/8.0491/168.0785/6415
3/4.0491/1612.0785/6419
7/8.0491/1616.0785/6421
1.0491/1619.0785/6423
1 1/8.0625/6423.0785/6425
1 1/4.0625/6425.0785/6428
1 3/8.0625/6428.0785/6432
1 1/2.0625/6432.0785/6438

Mild sheet Metal-Low Carbon Monel Sheets-Annealed

HEIGHT OF CURVED FLANGEMin. Thick-
ness
Min Bend RadiiMin. Curve RadiiMax. Thick-
ness
Min. Bend RadiiMin. Curve Radii
1/4.0251/323.0501/163
5/16.0311/323.0623/323 1/2
3/8.0311/323.0703/324
7/16.0311/324.0873/327
1/2.0311/325.0991/88
9/16.0493/647.1091/810
5/8.0493/648.1091/811
3/4.0493/6411.1091/814
7/8.0621/1613.1091/817
1.0621/1616.1091/820
1 1/8.0621/1619.1091/823
1 1/4.0621/1624.1091/826
1 3/8.0621/1627.1091/829
1 1/2.0621/1631.1091/832

Aluminum Alloy-2024-T3

HEIGHT OF CURVED FLANGEMin. Thick-
ness
Min Bend RadiiMin. Curve RadiiMax. Thick-
ness
Min. Bend RadiiMin. Curve Radii
1/4.0201/166.0405/326
5/16.0201/167.0405/327
3/8.0313/328.0513/169
7/16.0313/329.0513/1611
1/2.0313/3210.0641/413
9/16.0313/3213.0641/416
5/8.0313/3217.0641/419
3/4.0401/824.0641/425
7/8.0401/830.0641/427
1.0401/832.0641/434
1 1/8.0641/436.0641/436
1 1/4.0641/438.0641/438
1 3/8.0641/444.0641/444
1 1/2.0641/446.0641/446

MINIMUM BEND RADII IN DIFFERENT METAL THICKNESSES



Metal Thickness
2024-0
Aluminum

Formed before
heat treatment
2024-T3
Aluminum
& Similar
Alloys
Mild Steel
Low Carbon
Monel Sheets
Annealed
Stainless Steel
Type 302 or 309
.020 - .0291/321/161/321/32
.030 - .0391/323/321/323/64
.040 - .0491/161/81/161/16
.050 - .0591/163/161/161/16
.060 - .0691/161/43/325/64
.070 - .0793/32--3/325/64
.080 - .0893/32--3/32--
.090 - .0991/8--1/8--
.100 - .1091/8--1/8--
.110 - .1191/8------
.120 - .1991/8------
.130 - .1395/32------
.140 - .1493/16------
.150 - .1593/16------
.160 - .1697/32------
.170 - .1797/32------
.180 - .1891/4------