Thabiso Steel is a reputable manufacturer and supplier located in Cape Town, South Africa, specializing in high-quality SA 516 Gr. 70N NACE HIC Plates. These plates are specifically designed for pressure vessels and boilers that face exposure to hydrogen sulfide and other harsh environments. Adhering to NACE MR0175/ISO 15156 standards, Thabiso Steel guarantees that each plate offers exceptional resistance to hydrogen-induced cracking (HIC) and sulfide stress corrosion. The SA 516 Gr. 70N NACE HIC Plates are highly regarded for their remarkable strength, durability, and reliability in challenging industrial settings.
These plates are primarily made from carbon, manganese, phosphorus, sulfur, and silicon, with carefully controlled microalloying elements to boost toughness and corrosion resistance. The “N” indicates that the plates are normalized, which enhances grain refinement, strength, and mechanical consistency. They provide excellent tensile and yield strength, impressive elongation, and outstanding impact toughness, even in low temperatures. Their microstructure is designed to resist brittle fracture and hydrogen-induced cracking in sour service conditions.
| 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 | – |
Jaxon Steel is a trusted manufacturer and supplier of high-quality SA 516 GR.70N NACE and HIC Plates in Cape Town, South Africa. 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 the oil and gas, petrochemical, and refinery sectors. They are perfect for pressure vessels, heat exchangers, and storage tanks that operate in hydrogen sulfide-rich or sour gas environments. Additionally, these plates are utilized in offshore platforms, pipelines, and process plants where corrosion resistance and mechanical reliability are paramount. Their excellent toughness, weldability, and resistance to HIC ensure a long service life and safety in high-pressure, corrosive, and low-temperature applications.
ThabisoSteel 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 Cape Town, South Africa.
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