SA612

SA612 is a high strength carbon steel and Kloeckner Metals is proud to supply it routinely across our nationwide network of branches.

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Typical Standards

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General Info About SA612

SA612 is killed carbon-manganese-silicon steel plate made for welded pressure vessels. Its fine grain makes it suitable for use in moderate and lower temperature service where impact resistance is important.

More Details About SA612

  • Advantages/Disadvantages

    SA612 is a high value pressure vessel quality steel plate. PVQ steel plates are specifically certified to contain liquids and gasses under ambient conditions. This grade provides good notch toughness and can tolerate moderate to lower temperatures.

  • Industries

    The grade is fully killed, or deoxidized to meet mechanical standards required by oil, gas, and petrochemical industries for use in fusion welded industrial boilers and pressure vessels.

  • Applications

    The grade is best for use in pressure vessels and industrial boilers. It is also ideal for other applications with exposure to moderate and low temperature conditions, and where high strength is required.

  • Machining

    It has good machinability.

  • Welding

    It has excellent weldability.

  • Heat Treatment

    It is heat treatable.

Chemical Properties

CCrCuFeMnMoNiPSiSV
0.290.250.3597.051 - 1.50.080.250.0350.15 - .50.040.08

Mechanical Properties

Mechanical Properties
MetricImperial
Tensile Strength, Ultimate560 - 695 MPa81,200 - 101,000 psi
Tensile Strength, Yield345 MPa50,000 psi
Elongation at Break16% - 22%16% - 22%
Modulus of Elasticity200 GPa29,000 ksi
Bulk Modulus160 GPa23,200 ksi
Poissons Ratio0.290.29
Shear Modulus80.0 GPa11,600 ksi

Frequently Asked Questions About SA612

  • What is the tensile strength of SA612?

    The ultimate tensile strength for this high carbon steel falls between 560 – 695 MPa, or 81,200 – 101,000 psi.

  • What is PVQ steel?

    PVQ, or Pressure Vessel Quality steel, specifies general requirements for steel plates for pressure vessels. As pressure vessels often contain hazardous gases or liquids, the steel must show high-strength and retain pressure without cracking. Deoxidation of the steel plates conform to PVQ specifications for fine grain, which, along with its specific chemical composition, makes the steel impact resistant.

  • What limits the maximum thickness of SA612?

    This steel plate, and other PVQ carbon plates, have a maximum thickness that is limited by the ability of the steel to meet mechanical property specifications set by the ASTM.

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