Ahmer Steel, based in the vibrant industrial heart of Manama, Bahrain, has built a strong reputation as a trusted manufacturer and supplier of specialized steel products. We take particular pride in our NACE MR 0103 HIC-resistant boiler sheets and plates, which are engineered to meet the extreme challenges of the modern energy sector. Our commitment lies in providing materials that don’t just meet specifications but ensure the absolute integrity and safety of critical infrastructure, supporting our clients in building durable and reliable projects throughout the region and beyond.
These specialized sheets and plates are formulated with a carefully controlled composition that minimizes impurities, making them exceptionally resistant to Hydrogen Induced Cracking (HIC). This specific chemistry, combined with precise thermal treatment, grants them excellent mechanical properties. They offer high tensile strength and impressive toughness, ensuring they can withstand significant pressure and stress. Crucially, they are fully certified to comply with the stringent NACE MR 0103 standard, guaranteeing their performance in environments where wet hydrogen sulfide corrosion is a persistent concern.
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 HIC-resistant plates is in the construction of critical equipment for the oil, gas, and petrochemical industries. You will find them fabricating essential components like pressure vessels, refinery heat exchangers, and critical boiler systems. Their unique resistance makes them indispensable for any application where equipment is exposed to sour environments containing hydrogen sulfide. By choosing these plates, engineers and fabricators can significantly enhance the operational safety and extend the service life of their most vital assets, preventing costly failures.
Ahmer 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 Manama, Bahrain.
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