A572 steel
ASTM A572 steel is a common high strength, low alloy (HSLA) structural steel used in the United States.[1] A572 steel properties are specified by ASTM International standards.[2]
Grades[]
A572 steel has five different grades: 42, 50, 55, 60 and 65.[2] Each of these grades differ in their mechanical properties and chemical composition.
Chemical Composition[]
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 Grade | Yield Point (KSI) | Tensile Strength (KSI) | 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,[2] which include:
- Plates [3]
- 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.[4] These applications include structural sections, reinforcing bars, bridges, skyscrapers and houses.[1]
References[]
- ^ a b A. (2021). Steel Construction Manual (15th ed.). AMERICAN INSTITUTE OF PHYSICS / SPRINGER.
- ^ a b c d e ASTM International. (2021). Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel. (Designation: A572/A572M – 21).
- ^ Leeco Steel. (n.d.). A572 Steel Plate. Retrieved August 12, 2021, from https://www.leecosteel.com/a572-steel-plate/
- ^ Bjorhovde, R. (2004). Development and use of high performance steel. Journal of Constructional Steel Research, 60(3–5), 393–400.
Categories:
- Steel
- Metals