what is astm a992?
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- Jun 12,2024
ASTM A992 is a steel standard for making and using structural steel. The standard applies to the manufacture and processing of structural steels and is intended to improve their performance and reliability.
ASTM A992 steel is a structural steel alloy commonly used in the United States to make wide flange beams and I-beams. Like other carbon steels, ASTM A992 steel has a density of approximately 7850 kg/m 3 (0.2836 lb/in 3 ). According to ASTM specification A992/A992M, ASTM A992 steel has the following minimum mechanical properties. Tensile yield strength, 345 MPa (50 ksi); Tensile ultimate strength, 450 MPa (65 ksi); Fracture strain (sometimes called elongation) for 200 mm long specimens, 18%; Fracture strain for 50 mm long specimens, 21%.
ASTM A992 is currently the most commonly used structural steel grade for wide flange beams. The industry technical association describes the standard as follows: "ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) is the preferred material specification for wide flange shapes, replacing ASTM A36 and A572 Grade 50. ASTM A992 has several noteworthy improvements. Material ductility is well defined, as a maximum yield strength to tensile strength ratio of 0.85 is specified. In addition, weldability is improved, as a maximum carbon equivalent value of 0.45 (0.47 for Group 4 and 5 shapes) is required. ASTM A992 applies to all hot rolled shapes."