ASTM A572 steel is a common high strength, low alloy (HSLA) structural steel used in the United States.A. (2021). Steel Construction Manual (15th ed.). AMERICAN INSTITUTE OF PHYSICS / SPRINGER. A572 steel properties are specified by ASTM International standards.ASTM International. (2021). Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel. (Designation: A572/A572M – 21).
Grades A572 steel has five different grades: 42, 50, 55, 60 and 65. Each of these grades differ in their mechanical properties and chemical composition.
Chemical Composition + A572 Steel Chemical Composition, Per ASTM standards A572 Grade Carbon Manganese Phosphorus Sulfur Silicon Grade 42 0.21% 1.35% 0.030% 0.030% 0.15-0.40% Grade 50 0.23% 1.35% 0.030% 0.030% 0.15-0.40% Grade 55 0.25% 1.35% 0.030% 0.030% 0.15-0.40% Grade 60 0.26% 1.35% 0.030% 0.030% 0.40% Grade 65 Less Than 1/2" Thick 0.26% 1.35% 0.030% 0.030% 0.40% Grade 65 Over 1/2" to 1 1/4" Thick 0.23% 1.65% 0.030% 0.030% 0.40%
Material Properties + A572 Steel Material Properties, Per ASTM Standards A572 Grade Yield Point (KSI) [MPa] Tensile Strength (KSI) [MPa] Min. 8” Elongation % Grade 42 42 60 20 Grade 50 50 65 18 Grade 55 55 70 17 Grade 60 60 75 16 Grade 65 65 80 15
Forms A572 steel is produced in a variety of different steel forms, which include: Plates Leeco Steel. (n.d.). A572 Steel Plate. Retrieved August 12, 2021, from https://www.leecosteel.com/a572-steel-plate/ Bars Structural Shapes Channels I-Beams Angles Wide Flange Beams Sheet Piling
Applications A572 steel is typically used in structural applications due to its high strength, ductility, weldability and corrosion resistance.Bjorhovde, R. (2004). Development and use of high performance steel. Journal of Constructional Steel Research, 60(3–5), 393–400. These applications include structural sections, reinforcing bars, bridges, skyscrapers and houses.
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