Yousef Steel stands out as a top manufacturer and supplier in Riyadh, Saudi Arabia, focusing on high-quality SA 516 GR.70N NACE HIC Plates. These plates are specifically crafted for use in boilers, storage tanks, and pressure vessels that operate in sour service environments. Supplied in a normalized (N) condition, they meet NACE standards and undergo rigorous testing for Hydrogen Induced Cracking (HIC) resistance, ensuring they perform reliably even in hydrogen sulfide (H₂S)-rich and corrosive settings. Renowned for their exceptional strength, toughness, and weldability, SA 516 GR.70N NACE HIC Plates are a go-to choice in the oil, gas, petrochemical, and refinery sectors.
The manufacturing process of SA 516 GR.70N NACE HIC Plates involves a precisely controlled mix of carbon, manganese, phosphorus, sulfur, and silicon, which contributes to their impressive strength and resistance to hydrogen damage. They boast a tensile strength ranging from 485–620 MPa, along with high yield strength and outstanding notch toughness. The normalization process improves their grain structure and ductility, while HIC testing ensures they are protected against hydrogen blistering, sulfide stress corrosion cracking (SSC), and embrittlement, making them perfect for sour gas service applications.
| Grade | ASME SA 516 GR.70N Boiler and Pressure Vessel Steel Plates |
|---|---|
| Width | 1000mm-4500mm |
| Thickness | 5mm-150mm |
| Length | 3000mm-18000mm |
| Supply Condition | As Rolled, Normalized Rolling, Furnace Normalizing, Vacuum Degassing, Simulated Post-Weld Heat Treatment or as per customer requirement. |
| Impact tested | 52° C |
| Tempering | Notch toughness can be improved by quenched cooling from hot rolling or normalizing by the supplier. If such a faster cooling rate is agreed upon between purchaser and supplier then the steel is also to be tempered at 1200 F. |
| Applications | Used for weld fabrication of pressure vessels that require improved notch toughness for lower than ambient temperature service. |
| Process of Manufacturing | Hot-Rolled (HR) |
| C | Si | Mn | P | S | Al | Cr | Cu | Ni | Mo | Nb | Ti | V |
| 0.18 | 0.4 | 0.95/1.50 | 0.015 | 0.008 | 0.02 (Min) | 0.3 | 0.3 | 0.3 | 0.08 | 0.01 | 0.03 | 0.02 |
| Tensile strength (ksi) | Yield strength (ksi) | Elongation min, % 200 mm (8 in) | Elongation min, % 50 mm (2 in) |
| 485-620 (70-90) | 260 (38) | 17 | 21 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| British Standard | European Norm | ASTM/ASME | DIN |
| BS1501-224-490A/B | EN10028 P355GH | A/SA516 – Grade 70 | – |
Yousef Steel is a trusted manufacturer and supplier of high-quality SA 516 GR.70N NACE and HIC Plates in Riyadh, Saudi Arabia. We specialize in premium steel products, including Alloy Steel, Carbon Steel, Mild Steel and Galvanized Steel, with a strong focus on Carbon Steel Sheet and Plates. Our extensive inventory also includes Pipes, Tubes, Flanges, Forged Fittings and Bars. Committed to fast delivery and exceptional customer service, we use only the finest raw materials to ensure superior strength, durability and performance for critical industrial applications. Contact us today for all your SA 516 GR.70N NACE and HIC Plates needs!
SA 516 GR.70N NACE HIC Plates find extensive application in high-strength, corrosion-resistant steel pressure vessels and storage tanks in industries. The plates are critical in oil & gas, petrochemical, power generation, chemical processing, and marine industries because of their superior resistance to hydrogen-induced cracking (HIC) and excellent weldability. They are used almost exclusively in boilers, heat exchangers, separators, and pressure vessels under severe environments for safety and resistance in sour service conditions with heavy hydrogen sulfide exposure.
Yousef 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 Riyadh, Saudi Arabia.
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