When the tensile strength of steel or wrought-iron shell plates is not known, it shall be taken at 55,000 pounds per square inch for steel and 45,000 pounds for wrought iron.
N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 14-10.8
When the tensile strength of steel or wrought-iron shell plates is not known, it shall be taken at 55,000 pounds per square inch for steel and 45,000 pounds for wrought iron.
N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 14-10.8