ASTM A573 Structural Steel Plate for Storage Tanks

ASTM A573 is a structural steel plate commonly used in the manufacture of storage tanks.

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Features

  • Available in three grades: 58, 65 and 70.

  • Max thickness of 1.50".

  • Charpy test requirements for specific zones and climates may be requested.

  • Due to quickly shifting inventory with this grade of structural steel, please inquire about availability.

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Product Details

Grade Thickness Width Length
A573-58 Inquire Inquire Inquire
A573-65 Inquire Inquire Inquire
A573-70 Inquire Inquire Inquire
Grade Yield Point (ksi) Tensile Strength (ksi) Min. 8” Elongation %
58 32 58-71 21
65 35 65-77 20
70 42 70-90 18
Carbon max 0.23%
Manganese 0.60-0.90%
Phosphorus max 0.030%
Sulfur max 0.030%
Silicon 0.10-0.35%
Aluminum total .020%
Carbon, >1/2"-1 1/2" Thick 0.26%
Carbon, ≤1/2" Thick 0.24%
Manganese 0.85-1.20%
Phosphorus max 0.030%
Sulfur max 0.030%
Silicon 0.15-0.40%
Aluminum total .020%
Carbon, >1/2"-1 1/2" Thick 0.28%
Carbon, ≤1/2" Thick 0.27%
Manganese 0.85-1.20%
Phosphorus max 0.030%
Sulfur max 0.030%
Silicon 0.15-0.40%
Aluminum total .020%

Grade Comparison

Frequently Asked Questions

Learn more about A573 steel plate.
ASTM A573 is a structural carbon steel plate commonly used for storage tanks when improved toughness is needed at normal atmospheric service temperatures. ASTM A516 is a pressure vessel steel plate used primarily for welded pressure vessels in moderate- and lower-temperature service. The right grade depends on whether the project requires structural tank plate or pressure vessel plate requirements.
ASTM A573 is a structural carbon steel plate grade that is commonly used in the manufacture of storage tanks and other structural applications where atmospheric temperatures require improved notch toughness. It is fully killed, made to fine-grain practice and available in Grades 58, 65 and 70.
Fully killed steel is steel that has been fully deoxidized by the addition of deoxidizing agents to create a more uniform steel structure. Fine-grain practice helps further refine the grain structure of killed steel. For ASTM A573 steel plate, these requirements support improved notch toughness in structural applications.
Charpy impact testing is not automatically required for every ASTM A573 steel plate order, but it may be requested for specific zones, climates or project conditions. Because A573 is used where improved notch toughness is important, Charpy testing should be specified when additional toughness verification is required.