SA516 is the most popular pressure vessel steel plate in the industry and Kloeckner Metals is proud to supply it routinely across our nationwide network of branches.

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Typical Standards

3/16" - 6"48" - 120"96" - 480"

General Info About SA516

SA516 steel plate is the most popular pressure vessel quality steel plate. It is available in four different grades, 55, 60, 65 and 70. It is also offered in normalized condition where high notch toughness is required.

More Details About SA516

  • Advantages/Disadvantages

    SA516 is a high value pressure vessel quality steel plate that provides an optimum combination of strength, notch toughness, and weldability. It is designed to withstand moderate to low temperatures and resist corrosion. One disadvantage is that it is not easily formed or machined.

  • Industries

    The grade meets high performance standards required by oil, gas, and petrochemical industries for use in boilers and pressure vessels. It is also common in the construction, automotive, and railroad industries.

  • Applications

    SA516 is primarily used in welded stress vessels and industrial boilers, where it controls a moderate to low temperature with improved impact toughness. SA516 grade 70 is especially popular in power stations, reactors, heat exchangers, separators, various kinds of tanks, pressure shells, and boiler drums. Other components, like gas cylinders, high-pressure water pipes, and turbine volutes are also common. Some additional applications include automotive parts, structural tubing, and bridges.

  • Machining

    SA516 has fair machinability.

  • Welding

    It has excellent weldability.

  • Heat Treatment

    SA516 is heat treatable.

Chemical Properties of Grade 70

0.10 / 0.220.021 /

Mechanical Properties of Grade 70

Mechanical Properties
Tensile Strength, Ultimate 485 - 620 MPa70,300 - 89,900 psi
Tensile Strength, Yield260 MPa37,700 psi
Elongation at Break17% - 21%17% - 21%
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 SA516

  • What is SA516 grade 70 steel?

    Out of the four grades—55, 60, 65, 70—that are available for this steel, grade 70 is considered the most widespread. While each grade is a pressure vessel quality high carbon low alloy steel plate, tensile strength varies among them. Grade 70 has the highest tensile strength of them all, between 485 – 625 MPa.

  • What is ASTM SA516?

    SA516 steel is the American Society for Testing and Materials (ASTM) designation for Pressure Vessel Quality (PVQ) carbon steel plate available in normalized condition. It shows a tensile strength between 380 – 620 MPa, depending on the grade. Higher chemical composition and material properties standards are set for PVQ steel because it is specifically meant to contain gasses or liquids at elevated pressures.

  • What is the difference between grade 60 and 70?

    Grade 60 and 70 are nearly identical, and for most applications, they will both prove suitable. However, when more strength is required, grade 70 will outperform. It is the highest strength grade. The three other grades, including grade 60, all have lower tensile strengths. The tensile strength for grade 60 is between 415 – 550 MPa, while grade 70 has a tensile strength between 485 – 620 MPa.

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