รายละเอียดเอกสาร

This specification covers rolled steel structural shapes for use in building framing or bridges, or for general structural purposes. Heat analysis shall be used to determine the percentage of carbon, manganese, phosphorus, sulfur, vanadium, titanium, nickel, chromium, molybdenum, columbium, and copper for the required chemical composition. Tension test shall be used to evaluate the required tensile properties such as tensile strength, yield strength and elongation.