Size Inches.

Thickness. Inches.

Radii of Gyration.

r0.

r1

r2

r3.

6 X4

7/8

1.95

1.68

1.87

1.97

6 X4

3/8

1.93

1.50

1.67

1.76

5X3 1/2

3/4

1.59

1.44

1.63

1.73

5 X3 1/2

3/8

1.60

1.84

1.51

1.61

5 X3

3/4

1.62

1.23

1.42

1.52

6 X3

5/16

1.61

1.09

1.26

1.36

4 1/2X3

3/4

1.43

1.25

1.44

1.55

4 1/2X3

5/16

1.45

1.13

1.31

1.40

4 X3 1/2

3/4

1.24

1.53

1.72

1.83

4 X3 1/2

5/16

1.26

1.41

1.58

1.69

4 X3

5/8

1.23

1.20

1.39

1.50

4 X3

5/16

1.27

1.17

1.35

1.48

3 1/2X3

5/8

1.06

1.27

1.46

1.56

31X3

5/16

1.10

1.21

1.39

1.49

3 1/2X2*

9/16

1.10

1.04

1.23

1.84

3 1/2X2 1/2

1/4

1.12

.96

1.17

1.24

3 X2 1/2

9/16

.93

1.07

1.27

1.37

3 X2 1/2

1/4

.95

1.00

1.18

1.28

3 X2

1/2

.92

.80

1.00

1.10

3 X2

1/4

.96

.75

.93

1.04

2 1/4X1 1/2

5/16

.70

.60

.79

.91

2 1/4 X 1 1/2

3/16

.72

.57

.75

.86