ASTM A572 Plate -- High Strength Steel

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 The ASTM A572 specification is the Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel for plates used in general construction and structural applications,  including bridges, buildings, construction equipment, freight cars, machinery, truck parts and transmission towers. ASTM A572 includes five grades with specified minimum yield strengths of 42, 50, 55, 60, and 65 ksi, respectively.  For applications where notch toughness is important, consult HANKEV for specific Charpy V-notch toughness requirements.  ASTM A572 grades are used in a wide variety of structural applications in many market segments. 

ASTM A572 steel plate is a popular grade of high-strength low-alloy (HSLA) steel that is typically used in structural applications. A572 steel contains chemical alloys that enhance the material’s hardness and ability to bear weight, and this material is lightweight relative to steel grades with similar compositions.

There are five different grades of A572 steel plate, Each of these grades have slight differences in their mechanical properties and chemical compositions, which may make them more fitting for certain applications. A572-50, however, is the most common A572 grade.

•  Strength: Yield Strength, Tensile Strength: Strong, 60-80 (415-550) ksi (MPa)
  (For higher strength and lower weight, consider Advanced High-strength Steels)
• Formability: Elongation: Basic, 17-24%
  (For better formability consider Drawing Steel)
• Joining – Very Good:
  The most common welding methods can be used. A572 steel is also commonly bolted and riveted in structures.
• Corrosion Resistance – Good
  Can be galvanized to slow rusting. 

                   (For longer life in harsh chemical conditions, consider Galvanized or Coated Steel)

• Chemistry – Alloyed with small amounts of Columbium and Vanadium
• Cost – Higher. 
  Good when thinner or stronger steels will add value.