Pressure Vessel Steel Plate

SA516 Gr.70N Pressure Vessel Steel Plate

ASME SA516 Gr.70/70N pressure vessel steel plate with optional HIC/SSC test for oil, gas and petrochemical equipment.

SA516 Gr.70 is the most-specified carbon steel vessel plate in the ASME world - refinery drums, heat exchangers, storage spheres. We supply it normalized with fine-grain practice (the N in Gr.70N), and HIC/SSC-tested variants for wet sour service per NACE MR0175.

Grades and Standards

  • ASME SA516/SA-20 Gr.60, 65, 70 - Gr.70 is the workhorse
  • Normalized delivery for improved low-temperature toughness
  • HIC test per NACE TM0284, SSC per NACE TM0177, when sour service is specified

Sizes and Supply

  • Thickness 8-150 mm, widths to 3500 mm, lengths to 14000 mm
  • Blanchard-ground plates available where thickness tolerance is tight

Delivery Condition and Testing

EN 10204 3.1 MTC standard, 3.2 with third-party witnessing for licensed work. UT to SA435/SA578 with acceptance level specified at order. HIC test reports show solution-applied and solution-annealed results separately - ask and we explain the difference.

Where This Plate Goes

  • ASME pressure vessels and drums
  • Heat exchanger shells
  • Sour gas and refinery storage

Questions Buyers Ask

Q: As-rolled or normalized? A: Normalized gives better toughness and more predictable NDT results; most spec changes we see move toward Gr.70N.
Q: What does an HIC report include? A: Crack length ratios (CLR, CTR, CSR) per the standard, on the actual heat - not a type certificate.
Quote with design code, thickness and test requirements in one message - vessel plate pricing changes with the test plan.