ASTM A612 High-Strength PVQ Steel Plate

A612 steel plate is the standard specification for pressure vessel plates that are high strength, carbon steel for moderate and lower temperature use.


  • High-strength pressure vessel quality steel plate for use in moderate and low temperatures.
  • Maximum thickness supplied is 1 inch.
  • Due to quickly shifting inventory with this grade of structural steel, please inquire about available sizes.


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.

A612 Yield Point (ksi) Tensile Strength (ksi) Min. 8” Elongation %
Under 0.5 in. thick 50 83-105 16
Over 0.5 in. to 1 in. thick 50 81-101 16


Chemical Composition

The following composition properties are ASTM specifications for A612 using heat analysis.

Carbon max 0.25%
Manganese 1.00-1.50%
Phosphorus max 0.030%
Sulfur max 0.030%
Silicon 0.15-0.50%
Copper max 0.35%
Nickel max 0.25%
Chromium max 0.25%
Molybdenum max 0.08%
Vanadium max 0.08%