What are ASME SA516 GR.70 Plates?

What are ASME SA516 GR.70 Plates?


The high-strength metal known as carbon steel is thought to be easily formed and welded into a variety of shapes. In any case, GR.70 plates are regarded as the best due to their excellent corrosion resistance and high tensile strength. The ASTM A516 GR.70 Plates are known commercially as PVQ plates and are widely used in a variety of industrial applications.


ASME SA516 is another name for ASTM A516. There are many different market sectors where designers and engineers use the A516 / SA516 standard, which is titled “standard specification for carbon steel pressure vessel plates for moderate- and lower-temperature service” and could almost be considered the default material specification for pressure vessel applications outside of Europe. When welded pressure vessels operate at moderate or lower temperatures, this grade is typically used to improve notch toughness. Generally, all pressure vessel steel plates over 1-1/2″ thick must be normalized. A516 is the most commonly available pressure vessel steel plate grade.


Applications of ASME SA516 GR.70 Plates


They are used in petrochemicals, oil drilling companies, and gas processing businesses, as well as equipment for seawater, heat exchangers, condensers, and heat exchangers. With the use of well-tested materials and under the supervision of quality specialists, these plates have a higher tolerance for high temperatures.


Having increased notch toughness is crucial in welded pressure tanks, thus this ASTM A516 specification applies to carbon steel plates. The plates come in four grades: Grades 55, 60, 65, and 70, which correspond to various levels of strength. ASME SA 516 Gr.70 Plate, also known as Grade 70, is the most popular level. The composition’s ability to satisfy the required mechanical properties is the single factor that restricts the maximum thickness of plates. After being killed, the steel must meet specifications for fine austenitic grain size. The plates must undergo a tension test to assess their mechanical characteristics, including tensile strength, yield strength, and elongation.