Introduction JIS G 3128 specifies hot-rolled high yield strength steel plates with excellent weldability for bridges, pressure vessels, high-pressure equipment, and other welded structures. These plates are designed to provide high strength, toughness, and reliable performance in applications subjected to significant mechanical loads. The standard specifies requirements for chemical composition, mechanical properties, heat treatment, testing, and inspection. The current edition is JIS G 3128:2025, which covers steel plates with a nominal tensile strength class of 780 MPa and proof stress class of 685 MPa. Ladhani Metal Corporation is a manufacturer, supplier, and exporter of high yield strength steel plates for industrial and structural applications. Material can be supplied according to customer requirements, with mill test certificates and quality inspection as applicable. Available Grades SHY685 | SHY685N | SHY685NS Forms of Supply Hot-rolled high yield strength steel plates Quenched and tempered steel plates Welded structural steel plates Cut-to-size and cut-to-length plates Plates supplied in required thicknesses, widths, and lengths Material Type High-Strength Alloy Steel | High Yield Strength Structural Steel | Weldable Steel Plates Chemical Composition and Mechanical Properties Example Grade: SHY685 Chemical Composition (maximum, by weight): Carbon (C): 0.18% Silicon (Si): 0.55% Manganese (Mn): 1.50% Phosphorus (P): 0.030% Sulfur (S): 0.025% Chromium (Cr): 1.20% Copper (Cu): 0.50% Molybdenum (Mo): 0.60% Vanadium (V): 0.10% Boron (B): 0.005% Mechanical Properties: Yield Strength / Proof Stress: Minimum 685 MPa for plates 6–50 mm thick Tensile Strength: 780–930 MPa for plates 6–50 mm thick Elongation: Depends on plate thickness and test specimen Charpy Impact Toughness: Specified impact energy requirements apply at the designated test temperature Heat Treatment: Quenching and tempering The values above are representative of SHY685 requirements in the 2021 edition. The applicable JIS G 3128:2025 requirements, plate thickness, heat treatment, and material test certificate should be checked before final material selection. Surface Finish JIS G 3128 steel plates are generally supplied with a hot-rolled surface finish. Surface quality, dimensional tolerances, and permissible imperfections are controlled according to the applicable specification and purchase requirements. Delivery Condition SHY685 plates are typically supplied in the quenched and tempered condition. The required delivery condition, testing, and inspection should be confirmed according to the applicable standard and purchase order. Key Features High yield strength for demanding structural applications Excellent weldability when suitable welding procedures are followed High tensile strength and load-bearing capacity Controlled chemical composition and mechanical properties Suitable for heavy-duty welded structures Inspection and mill test certificates according to order requirements Applications Bridge girders and bridge structures Pressure vessels and high-pressure equipment Heavy-duty welded structures Industrial machinery and supporting structures Infrastructure and engineering projects Load-bearing structural components Specialized industrial fabrication Conclusion JIS G 3128 high yield strength steel plates are used in welded structures requiring high strength, good weldability, and reliable mechanical performance. Grade selection should consider the applicable standard edition, plate thickness, design conditions, heat treatment, and impact testing requirements. To place an order or make an enquiry for JIS G 3128 high yield strength steel plates, contact Ladhani Metal Corporation with your required grade, thickness, dimensions, delivery condition, and quantity. #JISG3128 #JISG3128Steel #JISG3128SteelPlates #JISG3128Standard #JISG3128HighStrengthSteel #HighTensileSteelPlates #HighStrengthSteelPlates #WeldableSteel #StructuralSteelPlates #SteelPlates #AlloySteelPlates #CarbonSteelPlates #IndustrialSteel #EngineeringSteel #SteelPlateManufacturer #SteelPlateSupplier #SteelPlateExporter #SteelManufacturer #SteelSupplier #SteelExporter #SteelStockist #SteelDistributor #SteelProducts #SpecialtySteel #HighTensileSteel #Mumbai #Delhi #Chennai #Kolkata #Bengaluru #Hyderabad #Ahmedabad #Pune #Surat #Jaipur #Lucknow #Kanpur #Nagpur #Indore #Srinagar #Aurangabad #Dhanbad #Amritsar

Introduction JIS G 3127 specifies hot-rolled nickel steel plates used for pressure vessels and storage equipment operating at low temperatures. These plates are designed to provide suitable strength, toughness, and resistance to brittle fracture under demanding low-temperature and cryogenic service conditions. The standard covers requirements for chemical composition, mechanical properties, heat treatment, testing, and inspection. Nickel steel plates are commonly selected for equipment that must maintain toughness at very low temperatures. Ladhani Metal Corporation is a manufacturer, supplier, and exporter of nickel steel plates for pressure vessel and industrial applications. Material can be supplied according to customer requirements, with mill test certificates and quality inspection as applicable. Available Grades SL2N255 | SL3N255 | SL3N440 | SL5N590| SL9N520 Forms of Supply Hot-rolled nickel steel plates Low-temperature pressure vessel plates Cryogenic service steel plates Cut-to-size and cut-to-length plates Plates supplied in required thicknesses, widths, and lengths Material Type Nickel Alloy Steel | Low-Temperature Pressure Vessel Steel | Cryogenic Steel Chemical Composition and Mechanical Properties Example Grade: SL9N590 Chemical Composition: Carbon (C): 0.12% maximum Silicon (Si): 0.30% maximum Manganese (Mn): 0.90% maximum Phosphorus (P): 0.015% maximum Sulfur (S): 0.015% maximum Nickel (Ni): 8.50–9.50% Mechanical Properties: Yield Strength or Proof Stress: 590 MPa minimum Tensile Strength: 690–830 MPa Elongation: Minimum 21% for specified plate thicknesses of 6–16 mm; requirements vary with thickness and specimen Impact Toughness: Specified Charpy impact testing at low temperatures, including −196°C, according to the applicable requirements The values shown are for the example grade SL9N590. Final requirements should be verified against the applicable edition of JIS G 3127, plate thickness, heat-treatment condition, and material test certificate. Surface Finish JIS G 3127 nickel steel plates are generally supplied with a hot-rolled surface finish. Surface quality, dimensional tolerances, and permissible imperfections are controlled according to the applicable specification and purchase requirements. Delivery Condition The delivery condition depends on the grade and purchase requirements. It may include normalizing, normalizing and tempering, double normalizing and tempering, thermo-mechanical controlled processing, or quenching and tempering, as specified for the selected grade. Key Features Suitable for low-temperature and cryogenic pressure vessel applications Nickel content contributes to low-temperature toughness Controlled chemical composition and mechanical properties Suitable for specified storage tank and pressure vessel designs Available in different grades and plate thicknesses Material inspection and mill test certificates according to order requirements Applications Low-temperature pressure vessels Liquefied natural gas (LNG) storage tanks Liquefied gas storage and processing equipment Cryogenic storage and transportation equipment Chemical and petrochemical processing plants Industrial tanks designed for low-temperature service Pressure vessels operating under cryogenic conditions Conclusion JIS G 3127 nickel steel plates are used in pressure vessels and storage equipment requiring reliable strength and toughness at low temperatures. The appropriate grade should be selected according to operating temperature, design conditions, plate thickness, heat treatment, and impact testing requirements. To place an order or make an enquiry for JIS G 3127 nickel steel plates, contact Ladhani Metal Corporation with your required grade, thickness, dimensions, delivery condition, and quantity. #JISG3127 #JISG3127Steel #JISG3127SteelPlates #JISG3127Standard #JISG3127NickelSteel #NickelSteelPlates #NickelAlloySteel #LowTemperatureSteel #LowTemperatureSteelPlates #PressureVesselSteel #PressureVesselPlates #SteelPlates #NickelSteel #AlloySteelPlates #IndustrialSteel #EngineeringSteel #SteelPlateManufacturer #SteelPlateSupplier #SteelPlateExporter #SteelManufacturer #SteelSupplier #SteelExporter #SteelStockist #SteelDistributor #SteelProducts #SpecialtySteel #JISStandards #JapaneseSteelStandards #IndustrialMaterials #Mumbai #Delhi #Chennai #Kolkata #Bengaluru #Hyderabad #Ahmedabad #Pune #Surat #Jaipur #Lucknow #Kanpur #Nagpur #Indore #Srinagar #Aurangabad #Dhanbad #Amritsar #NaviMumbai #Allahabad #Ranchi #Howrah #Jabalpur #Gwalior #Vijayawada

Introduction JIS G 3126 specifies carbon steel plates used for pressure vessels operating at low temperatures. These plates are designed to provide suitable strength, toughness, and resistance to brittle fracture under specified service conditions. The standard covers requirements for chemical composition, mechanical properties, impact toughness, heat treatment, testing, and inspection. Grade selection depends on operating temperature, plate thickness, and design specifications. Ladhani Metal Corporation is a manufacturer, supplier, and exporter of carbon steel plates for pressure vessel applications. Material can be supplied according to customer requirements, with mill test certificates and quality inspection as applicable. Available Grades SLA235A | SLA235B | SLA325A | SLA325B | SLA360 | SLA410 Forms of Supply Hot-rolled carbon steel plates Low-temperature pressure vessel plates Cut-to-size and cut-to-length plates Plates supplied in required thicknesses, widths, and lengths Material Type Carbon Steel (CS) | Pressure Vessel Steel | Low-Temperature Service Steel Chemical Composition and Mechanical Properties Example Grade: SLA235A Chemical Composition: Carbon (C): 0.15% maximum Silicon (Si): 0.30% maximum Manganese (Mn): 0.70–1.50% Phosphorus (P): 0.025% maximum Sulfur (S): 0.020% maximum Mechanical Properties: Yield Strength: Depends on plate thickness Tensile Strength: 400–510 MPa Elongation: Depends on specimen type and plate thickness Impact Toughness: Specified according to the required test temperature and applicable standard Exact chemical composition and mechanical property values should be verified against the applicable JIS G 3126 edition and material test certificate. Surface Finish JIS G 3126 carbon steel plates are generally supplied with a hot-rolled surface finish. Surface quality, dimensional tolerances, and permissible imperfections are controlled according to the applicable specification and purchase requirements. Delivery Condition Plates may be supplied in normalized, thermo-mechanically controlled processed, or quenched and tempered conditions, depending on the grade and applicable requirements. Key Features Suitable for low-temperature pressure vessel applications Designed for specified strength and impact toughness Controlled chemical composition and mechanical properties Available in different grades and plate thicknesses Suitable for pressure vessel fabrication using appropriate welding procedures Material inspection and mill test certificates according to order requirements Applications Low-temperature pressure vessels Liquefied gas storage and processing equipment Industrial tanks designed for low-temperature service Chemical and petrochemical processing plants Refrigeration and gas-processing equipment Pressure-containing equipment operating in cold environments Industrial process vessels and fabricated structures Conclusion JIS G 3126 carbon steel plates are used in pressure vessels and industrial equipment requiring suitable strength and toughness at low temperatures. Grade selection should be based on operating temperature, design conditions, plate thickness, impact testing requirements, and delivery condition. To place an order or make an enquiry for JIS G 3126 carbon steel plates, contact Ladhani Metal Corporation with your required grade, thickness, dimensions, delivery condition, and quantity #JISG3126 #JISG3126Steel #JISG3126SteelPlates #JISG3126Standard #JISG3126CarbonSteel #CarbonSteelPlates #PressureVesselSteel #PressureVesselPlates #SteelPlates #BoilerSteelPlates #CarbonSteel #PressureSteelPlates #IndustrialSteel #EngineeringSteel #SteelPlateManufacturer #SteelPlateSupplier #SteelPlateExporter #SteelManufacturer #SteelSupplier #SteelExporter #SteelStockist #SteelDistributor #SteelProducts #HighStrengthSteel #IndustrialMaterials #JISStandards #JapaneseSteelStandards #QualitySteel #MetalSupplier #LadhaniMetalCorporation #Mumbai #Delhi #Chennai #Kolkata #Bengaluru #Hyderabad #Ahmedabad #Pune #Surat #Jaipur #Lucknow #Kanpur #Nagpur #Indore #Srinagar #Aurangabad #Dhanbad #Amritsar #NaviMumbai #Allahabad #Ranchi #Howrah #Jabalpur #Gwalior #Vijayawada #Jodhpur #Raipur #Kota #Guwahati