ASTM A992とは 意味・読み方・使い方

ASTM A992 steel is a structural steel alloy often used in the USA for steel wide-flange beams (previously known as I-beams). Like other carbon steels, the density of ASTM A992 steel is approximately 7850 kg/m³. ASTM A992 steel has the following minimum mechanical properties, according to ASTM specification A992/A992M. Tensile yield strength, 345 MPa (50 ksi); tensile ultimate strength, 450 MPa (65 ksi); strain to rupture (sometimes called elongation) in a 200-mm-long test specimen, 18 %; strain to rupture in a 50-mm-long test specimen, 21 %.