Operating from the heart of Kinshasa, Congo, Yoane Steel proudly serves as a trusted manufacturer and supplier of industrial-grade materials. We specialize in providing NACE MR 01030175 certified HIC Boiler Sheet and Plates, a cornerstone for projects demanding unwavering reliability in challenging environments. Our commitment is to deliver materials that not only meet but exceed the rigorous standards required for the safe and efficient construction of pressure vessels and critical infrastructure, supporting the growth and safety of industries across the region and beyond.
These specialized plates are engineered with a specific composition to resist Hydrogen Induced Cracking (HIC), making them ideal for sour service environments where wet hydrogen sulfide is present. They boast excellent mechanical properties, including high strength and toughness, ensuring they can withstand significant pressure and stress. The NACE MR 01030175 certification is your assurance that the material has passed stringent testing, guaranteeing its performance and durability under the most demanding 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 |
| British Standard | European Norm | ASTM/ASME | DIN |
| BS1501-224-490A/B | EN10028 P355GH | A/SA516 – Grade 70 | – |
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 these certified plates is in the fabrication of boilers, pressure vessels, and other critical components within the oil, gas, and petrochemical industries. You will find them essential in constructing scrubbers, separators, and reactor shells where exposure to corrosive elements is a constant challenge. By choosing this material, engineers and fabricators can significantly enhance the longevity and safety of their equipment, preventing costly failures and ensuring operational integrity in some of the most punishing industrial settings.
Yoane 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 Kinshasa, Congo.
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