61:08:05:17.01Tensile strength.
Section · Administrative Rules of South Dakota · View on sdlegislature.gov ↗
When the tensile strength of steel or wrought iron shell plates is not known, it shall be taken as 55,000 psig for steel and 45,000 psig for wrought iron.
Source: 8 SDR 87, 8 SDR 134, effective July 1, 1982; 12 SDR 151, 12 SDR 155, effective July 1, 1986.