As a leading manufacturer and supplier based in Naypyidaw, Naing Steel is proud to be a cornerstone of Myanmar’s industrial growth, specializing in high-integrity pressure vessel steel. We understand that your projects demand unwavering reliability, which is why our SA 516 Grade 70 sheets and plates are produced with meticulous care. Our commitment extends beyond mere supply; we are your dedicated partner, ensuring you receive material that meets the most stringent standards for safety and performance, directly supporting the nation’s evolving infrastructure and energy sectors with trusted, locally-produced quality.
The composition of SA 516 Grade 70 is carefully balanced, primarily consisting of carbon and manganese with additions like silicon and phosphorus kept within strict limits to ensure excellent weldability and notch toughness. This chemical recipe gives the steel its robust mechanical character, most notably a minimum yield strength of 38,000 psi and a tensile strength range of 70,000 to 90,000 psi. These properties allow it to perform reliably in demanding environments, maintaining its structural integrity even under sub-zero temperatures, which is a critical requirement for many heavy-duty applications.
Grade :Â ASME SA 516 GR.65 Boiler and Pressure Vessel Steel Plates
Width :Â 1250mm-3000mm
Thickness : 3 – 200 mm/ dimensions up to 4.000 mm
Length :Â 3000mm-11000mm.
Production :Â Hot-Rolled (HR)
Heat Treatment :Â Rolled/Normalised/N+T/QT
| C | Si | Mn | P | S | Al | Cr | Cu | Ni | Mo | Nb | Ti | V |
| 0.08/0.20 | 0.4 | 0.9/1.5 | 0.03 | 0.03 | 0.02 | 0.3 | 0.3 | 0.3 | 0.08 | 0.01 | 0.03 | 0.02 |
| Tensile strength (ksi) | Tensile strength (MPa) | Yield strength (ksi) | Yield strength (MPa) | Elongation in 200mm (min)(%) | Elongation in 50mm (min) (%) |
| 65-85 | 450-585 | 35 | 240 | 19 | 23 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
The primary use for SA 516 Grade 70 is in the fabrication of pressure vessels and boilers that operate at moderate to lower temperatures, making it a fundamental material for the power generation and petrochemical industries. You will also find it extensively used in storage tanks for oil, gas, and chemicals, as well as in water treatment plants and large-scale construction projects where durability is non-negotiable. Its proven track record for safety and performance makes it the go-to choice for engineers who need a material they can trust to safely contain immense pressures and volatile substances.
Naing Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Naypyidaw, Myanmar.
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