Esha Steel stands out as a reliable manufacturer and supplier based in Kolkata, specializing in high-performance NACE MR0103/0175 HIC Boiler Sheets and Plates. These products are specifically designed for environments that encounter hydrogen sulfide (H₂S) and sour service conditions. Crafted with cutting-edge metallurgical techniques and rigorous quality control, these plates are built to withstand hydrogen-induced cracking (HIC), sulfide stress corrosion cracking (SSCC), and other failures associated with sour service. Esha Steel guarantees that every plate complies with NACE MR0103 and MR0175/ISO 15156 standards, making them perfect for critical applications in refineries, petrochemical facilities, oil and gas processing, and high-pressure boiler systems. Their robust durability and reliability ensure long-lasting safety in corrosive environments.
The NACE MR0103/0175 HIC Boiler Sheets and Plates are made from high-purity carbon steel or low-alloy steel, with carefully controlled levels of sulfur, phosphorus, and cleanliness to reduce the risk of cracking. The addition of alloying elements like manganese, silicon, molybdenum, and nickel boosts their strength and resistance to corrosion. These plates excel in resisting hydrogen-induced cracking, boasting high tensile and yield strength, along with impressive toughness even in sour-service conditions. Their finely tuned microstructure enhances resistance to SSCC, ensuring stable performance under pressure and long-lasting durability in environments containing H₂S.
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.
NACE MR0103/0175 HIC Boiler Sheets and Plates are essential in industries that deal with corrosive sour gases and need materials that can resist cracking exceptionally well. You’ll often find them in refineries, where they’re used for pressure vessels, separators, columns, and heat exchangers. In the oil and gas sector, they play a crucial role in storage tanks, pipelines, processing units, and offshore equipment that come into contact with H₂S. Petrochemical plants rely on these materials for reactors, boilers, and high-pressure process vessels. Their ability to withstand hydrogen damage makes them perfect for sour-service boilers, desalination plants, and chemical processing units that operate in harsh, corrosive conditions.
Esha 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 Kolkata India.
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