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blind flanges

DIN 2527 AISI 4140 Blind Flanges

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08048040025

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Description

A DIN 2527 AISI 4140 blind flange is a specialized type of blind flange made from AISI 4140 alloy steel, adhering to the DIN 2527 German standard. Blind flanges are crucial components in piping systems, used to seal the end of a pipe, vessel, or valve to isolate it or stop the flow of fluids. The AISI 4140 material used for this specific flange is a high-strength alloy steel known for its robustness and excellent mechanical properties, making it ideal for high-stress applications. AISI 4140, a chromium-molybdenum alloy steel, is renowned for its excellent mechanical properties, including high tensile strength, hardness, and resistance to wear. It is often used in heavy-duty applications such as in the automotive, aerospace, and oil & gas industries, where the need for robust materials is crucial. The use of AISI 4140 steel in a DIN 2527 blind flange ensures that the flange can handle high pressures, temperatures, and mechanical stresses without compromising on performance or safety. Material: AISI 4140 Alloy Steel Composition: AISI 4140 is a medium-carbon steel alloy that contains chromium (Cr) and molybdenum (Mo) as its primary alloying elements. These elements improve the steel's hardness, strength, and wear resistance. Key Properties: Strength: High tensile strength and yield strength, making it capable of withstanding high loads and stress in high-pressure applications. Toughness: Offers excellent toughness and impact resistance, making it suitable for challenging environments where forces are dynamic. Hardness: Can be heat-treated to achieve high hardness levels, providing resistance to wear and abrasion. Corrosion Resistance: While AISI 4140 is not as corrosion-resistant as stainless steel, it can still perform well in less corrosive environments with proper surface treatment (e.g., coatings or galvanizing). Design and Dimensions (DIN 2527) Shape: The blind flange is a flat, circular plate with no central hole. Its purpose is to seal the end of a pipe or vessel, effectively "closing" the pipeline or system. Bolt Holes: The flange has evenly spaced bolt holes around the perimeter, allowing it to be bolted securely to the corresponding flange or fitting in the system. These holes align with the bolt pattern of other components. Thickness: The flange thickness varies depending on the size, pressure class, and specific application requirements. It is designed to withstand internal pressure while providing a reliable seal. Pressure Rating: Flanges are typically rated according to pressure classes such as PN 6, PN 10, PN 16, PN 25, etc., indicating the maximum pressure the flange can safely handle without failure. Applications Pipeline Sealing: The primary function of a blind flange is to seal the open end of a pipeline, preventing the passage of fluids, gases, or other materials through the system. System Isolation: Blind flanges are used to isolate a section of the system for maintenance or repairs, allowing for safe disconnection of parts while maintaining system integrity. Pressure Containment: AISI 4140 blind flanges are also used in applications where maintaining pressure within a system is critical. The high strength and durability of AISI 4140 make it suitable for use in high-pressure environments. Types of Blind Flanges in DIN 2527 Raised Face (RF): The flange surface has a small raised area around the bolt circle to improve sealing when mated with a gasket. Flat Face (FF): The flange surface is level with the flange body, typically used with softer gaskets to create a seal. Ring Type Joint (RTJ): The flange may feature a groove to accommodate a metal ring gasket for high-pressure applications, providing a secure, reliable seal.

size as per requirement
Country of Origin Made in India
grade AISI 4140
pressure rating PN 6, PN 10, PN 16, PN 25
Manufactured by Ladhani Metal Corporation

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ASTM A350 / A350M Carbon & Low-Alloy Steel Forgings are forged components designed for use in low-temperature service where notch toughness and impact resistance are critical. These forgings provide excellent strength, ductility, and resistance to brittle fracture, making them suitable for pressure-containing parts operating in cold environments. Manufactured in accordance with ASTM A350/A350M, this specification covers carbon and low-alloy steel forgings requiring notch toughness testing for piping components such as flanges, fittings, valves, and similar parts. The standard ensures controlled chemical composition, mechanical properties, and mandatory impact testing to guarantee performance at low temperatures. Ladhani Metal Corporation is a trusted manufacturer, supplier, and exporter of ASTM A350 / A350M Carbon & Low-Alloy Steel Forgings, supplied with mill test certificates and strict quality inspection as per international standards. Forms of Supply (as per specification): Forged flanges, Forged fittings, Forged rings, Forged discs, Forged blocks, Machined forgings Available Grades (as per ASTM A350 / A350M): LF1, LF2 Class 1, LF2 Class 2, LF3 Class 1, LF3 Class 2, LF5 Class 1, LF5 Class 2, LF6 Class 1, LF6 Class 2, LF9, LF787 Scope of Specification: • Covers carbon and low-alloy steel forgings for low-temperature service • Intended for piping components such as flanges, fittings, and valves • Requires impact testing (Charpy V-notch) for notch toughness • Supplied in normalized, normalized and tempered, or quenched and tempered condition Typical Chemical Composition (LF2 Example): • Carbon (C): Max 0.30% • Manganese (Mn): 0.60 – 1.35% • Phosphorus (P): Max 0.035% • Sulphur (S): Max 0.040% • Silicon (Si): 0.15 – 0.30% • Nickel (Ni): May be added for improved low-temperature toughness Mechanical Properties (LF2 Class 1 Example): • Tensile Strength: 485 – 655 MPa • Yield Strength: Min 250 MPa • Elongation: Min 22% • Reduction of Area: Min 30% • Impact Test: Required at specified low temperature Key Features: • Excellent toughness at low temperatures • High resistance to brittle fracture • Good strength and ductility • Suitable for pressure-containing applications • Complies with strict ASTM impact testing requirements Material Characteristics: ASTM A350 / A350M forgings are engineered to maintain strength and toughness under low-temperature conditions. The controlled composition and heat treatment provide resistance to cracking and ensure reliable performance in cold service environments. Applications: • Oil and gas pipelines in cold regions • LNG and LPG processing plants • Cryogenic equipment • Flanges, valves, and fittings • Pressure vessels • Power generation plants Conclusion: Ladhani Metal Corporation supplies high-quality ASTM A350 / A350M Carbon & Low-Alloy Steel Forgings in a wide range of grades, sizes, and specifications. With excellent low-temperature performance and mechanical reliability, these forgings are widely used in oil & gas, petrochemical, and industrial applications. For stock availability, customized specifications, or technical details, contact Ladhani Metal Corporation. #ASTMA350 #ASTMA350LF2 #ASTMA350LF3 #ASTMA350Forgings #CarbonSteelForgings #LowTemperatureSteel #ForgedFlanges #SteelForgings #IndustrialForgings #PressureVesselSteel #PipeFlanges #ForgedComponents #AlloySteelForgings #ASTMStandards #EngineeringMaterials #ForgedRings #CustomForgings #ForgingIndustry #SteelManufacturing #HeavyEngineering #OilAndGasIndustry #PetrochemicalIndustry #PowerPlantEquipment #IndustrialSupplies #SteelExporters #MetalIndustry #ForgedSteel #FlangeManufacturers #ForgingSolutions #IndustrialMaterials #LowTempApplications #SteelProducts #ForgedParts #ASTMCompliance #QualityForgings #ForgingIndia #MumbaiSuppliers #SteelDistributors #B2BManufacturing #ForgingExperts #CustomMetal #SteelIndustry #IndustrialSteel #ForgedFlangeSupplier #CarbonSteelFlanges #PrecisionForgings #EngineeringSolutions #ASTMGradeSteel #IndustrialComponents #MetalForging #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 #Chandigarh #Solapur #Hubli #Mysuru #Tiruchirappalli #Bareilly

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68179d65be22ee500d53ff54 Card 2

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ASTM A335 / A335M Alloy Steel Pipes are seamless ferritic alloy steel pipes designed for high-temperature and high-pressure service. These pipes offer excellent strength, heat resistance, and corrosion resistance, making them ideal for critical applications in power plants, refineries, and petrochemical industries. Manufactured in accordance with ASTM A335/A335M, this specification covers seamless ferritic alloy steel pipes intended for high-temperature service. The standard ensures controlled chemical composition, mechanical properties, and dimensional accuracy for reliable performance under extreme conditions. Ladhani Metal Corporation is a trusted manufacturer, supplier, and exporter of ASTM A335 / A335M Alloy Steel Pipes, supplied with mill test certificates and strict quality inspection as per international standards. Forms of Supply (as per specification): Seamless pipes, Hot finished pipes, Cold drawn pipes, Alloy steel pipes, Heat-treated pipes Available Grades (as per ASTM A335 / A335M): P1, P2, P5, P9, P11, P12, P22, P23, P24, P36, P91, P92, P911, P122 Scope of Specification: • Covers seamless ferritic alloy steel pipes • Intended for high-temperature and high-pressure service • Suitable for heat treatment processes such as normalizing, quenching, and tempering • Supplied in annealed or heat-treated condition Typical Chemical Composition (Grade P91 Example): • Carbon (C): 0.08 – 0.12% • Chromium (Cr): 8.00 – 9.50% • Molybdenum (Mo): 0.85 – 1.05% • Manganese (Mn): 0.30 – 0.60% • Silicon (Si): 0.20 – 0.50% • Phosphorus (P): Max 0.020% • Sulphur (S): Max 0.010% • Vanadium (V): 0.18 – 0.25% • Niobium (Nb): 0.06 – 0.10% • Nitrogen (N): Controlled for strength Mechanical Properties (Grade P91 Example): • Tensile Strength: Min 585 MPa • Yield Strength: Min 415 MPa • Elongation: Min 20% • Hardness: Controlled as per specification • Suitable for creep-resistant applications Key Features: • Excellent high-temperature strength and creep resistance • Good oxidation and corrosion resistance • Suitable for high-pressure applications • Wide range of alloy grades available • Reliable long-term performance in extreme conditions Material Characteristics: ASTM A335 / A335M alloy steel pipes are engineered to perform under elevated temperatures and pressures. Alloying elements such as chromium and molybdenum enhance creep strength, oxidation resistance, and durability, making these pipes suitable for long-term service in high-temperature environments. Applications: • Power generation plants (boilers, superheaters) • Oil and gas refineries • Petrochemical industries • High-temperature piping systems • Heat exchangers • Pressure vessels Conclusion: Ladhani Metal Corporation supplies high-quality ASTM A335 / A335M Alloy Steel Pipes in a wide range of grades, sizes, and finishes. With superior high-temperature strength and durability, these pipes are widely used in power, petrochemical, and industrial applications. For stock availability, customized specifications, or technical details, contact Ladhani Metal Corporation. #ASTMA335 #ASTMA335M #AlloySteelPipes #SeamlessPipes #AlloySteel #HighTemperaturePipes #PressurePipes #IndustrialPipes #BoilerPipes #PowerPlantPipes #RefineryPipes #PetrochemicalPipes #OilAndGasPipes #P11Pipes #P22Pipes #P5Pipes #P9Pipes #P91Pipes #P92Pipes #AlloySteelTube #SteelPipesIndia #PipeSupplier #PipeManufacturer #PipeStockist #SeamlessAlloySteel #FerriticSteel #HeatResistantSteel #ChromeMolyPipes #CrMoSteel #HighPressurePipes #EnergySectorPipes #ThermalPowerPipes #IndustrialMaterials #EngineeringSteel #HeavyDutyPipes #ASTMStandards #PipeExporters #MetalIndustry #SteelIndustry #PipeSolutions #IndustrialSupply #PipeFittings #PipelineMaterials #AlloySteelGrades #P1toP91 #SteelProducts #IndustrialEngineering #ManufacturingIndia #PipingSolutions #AlloyPipes#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 #Chandigarh #Solapur #Hubli #Mysuru #Tiruchirappalli #Bareilly