When computing the ultimate strength of rivets in shear, the following values in pounds per square inch of the cross-sectional area of the rivet shank shall be used:

PSIG

Iron rivets in single shear

38,000

Iron rivets in double shear

76,000

Steel rivets in single shear

44,000

Steel rivets in double shear

88,000

When the diameter of the rivet holes in the longitudinal joints of a boiler is not known, the diameter and cross-sectional area of rivets, after driving, may be selected from Table 1, or may be ascertained by cutting out one rivet in the body of the joint.

1/4

9/32

5/16

11/32

3/8

13/32

Diameter of rivet after

driving – inches

11/16

11/16

3/4

3/4

13/16

13/16

Thickness of plate – inches

7/16

15/32

1/2

9/16

5/8

Diameter of rivet after

driving – inches

15/16

15/16

15/160

1-1/16

1-1/16

Source: 8 SDR 87, 8 SDR 134, effective July 1, 1982; 12 SDR 151, 12 SDR 155, effective July 1, 1986.

General Authority: SDCL 34-29A-16.

Law Implemented: SDCL 34-29A-16 , 34-29A-22 , 34-29A-24.