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A572 steel

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This is an old revision of this page, as edited by 58.96.61.97 (talk) at 21:58, 21 May 2023 (Under material properties, columns "Yield Point" and "Tensile Strength", added SI units, MPa for reference.). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

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 Steel Chemical Composition, Per ASTM standards [2]
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 [2]
A572 Grade Yield Point (KSI) [MPa] Tensile Strength (KSI) [MPa] Min. 8” Elongation %
Grade 42 42 [290] 60 [414] 20
Grade 50 50 [345] 65 [448] 18
Grade 55 55 [379] 70 [483] 17
Grade 60 60 [414] 75 [517] 16
Grade 65 65 [448] 80 [552] 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

  1. ^ a b A. (2021). Steel Construction Manual (15th ed.). AMERICAN INSTITUTE OF PHYSICS / SPRINGER.
  2. ^ a b c d e ASTM International. (2021). Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel. (Designation: A572/A572M – 21).
  3. ^ Leeco Steel. (n.d.). A572 Steel Plate. Retrieved August 12, 2021, from https://www.leecosteel.com/a572-steel-plate/
  4. ^ Bjorhovde, R. (2004). Development and use of high performance steel. Journal of Constructional Steel Research, 60(3–5), 393–400.
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