ASTM A573 Structural Steel Plate for Storage Tanks

Used in the manufacturing of storage tanks, ASTM A573 is a structural quality steel stocked and supplied by Leeco® Steel.

Overview:

  • Structural steel plate grade that is often used in the manufacture of storage tanks.
  • Available in three grades: 58, 65 and 70.
  • Max thickness of 1.50".
  • Fully killed, made to fine-grain practice and is used where atmospheric conditions require improved notch toughness.
  • 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.

 

Minimum order weight in the USA is 20 tons. For orders weighing less than 20 tons, additional freight surcharges may be applied. Minimum order weight for orders outside of North America is 500 MT.

Material Properties

The following material properties are ASTM specifications and will be confirmed on the Mill Test Report.

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

 

Chemical Composition

The following composition properties are ASTM specifications for these A573 grades.

A573 GR 58
Carbon max 0.23%
Manganese 0.60-0.90%
Phosphorus max 0.030%
Sulfur max 0.030%
Silicon 0.10-0.35%

 

A573 GR 65
Carbon, ≤1/2" Thick 0.24%
Carbon, >1/2"-1 1/2" Thick 0.26%
Manganese 0.85-1.20%
Phosphorus max 0.030%
Sulfur max 0.030%
Silicon 0.15-0.40%

 

A573 GR 70
Carbon, ≤1/2" Thick 0.27%
Carbon, >1/2"-1 1/2" Thick 0.28%
Manganese 0.85-1.20%
Phosphorus max 0.030%
Sulfur max 0.030%
Silicon 0.15-0.40%