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Nickel Alloy Hastelloy C-276 Pipe and Fittings UNS N10276 2.4819
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DescriptionIntroduction Nickel Alloy Hastelloy C-276 Products UNS N10276 2.4819Hastelloy C-276 (UNS N10276/DIN 2.4819) is a nickel-molybdenum-chromium superalloy renowned for its exceptional corrosion resistance in harsh environments. As a premier supplier and manufacturer, KCM SPECIAL STEEL (KCMSS) produces comprehensive Hastelloy C-276 pipe, Hastelloy C-276 tube, and Hastelloy C-276 pipe fittings that meet international standards. This article details the alloy’s composition, properties, and industrial applications while highlighting KCMSS’s product range including seamless/welded pipes, flanges, round bars, and plates.Hastelloy C-276 Pipe (UNS N10276/DIN 2.4819) is a seamless/welded nickel-molybdenum-chromium alloy tube with exceptional corrosion resistance in harsh environments, complying with ASTM B622/B619 for chemical processing, aerospace, and marine applications.Hastelloy C-276 Pipe Fittings (UNS N10276/DIN 2.4819) are corrosion-resistant forged/welded components designed for piping systems, meeting ASTM B366/B462 standards for extreme chemical, petrochemical, and marine service conditions.Hastelloy C-276 Flange (UNS N10276/DIN 2.4819) is a forged/welded corrosion-resistant pipe connector compliant with ASTM B462/B564, designed for high-pressure/temperature applications in chemical, oil & gas industries.Hastelloy C-276 Tube (UNS N10276/DIN 2.4819) is a seamless/cold-drawn nickel alloy tubing per ASTM B622/B626, offering superior corrosion resistance for heat exchangers, condensers, and chemical processing equipment.Hastelloy C-276 Round Bar is a forged/extruded nickel-molybdenum-chromium alloy rod per ASTM B574/ASME SB-574, offering exceptional corrosion resistance in chemical processing, pollution control, and marine applicationsHastelloy C-276 Plate (UNS N10276/DIN 2.4819) is a hot-rolled/cold-rolled nickel alloy sheet per ASTM B575, offering extreme corrosion resistance for chemical processing, flue gas desulfurization, and waste treatment systems.Hastelloy C-276 Sheet (UNS N10276/DIN 2.4819) is a cold-rolled nickel alloy per ASTM B575, offering superior pitting/crevice corrosion resistance for chemical processing, pollution control, and marine applications.Hastelloy C-276 Wire Rod (UNS N10276/DIN 2.4819) is a cold-drawn nickel alloy (UNS N10276) per ASTM B574, offering exceptional corrosion resistance for welding wires, springs, and chemical processing components.Hastelloy C-276 Seamless Pipe is a cold-worked nickel alloy (DIN 2.4819/UNS N10276) per ASTM B622, offering superior corrosion resistance for chemical processing, oil/gas, and pollution control systems.Hastelloy C-276 Welded Pipe is a longitudinally welded nickel alloy (DIN2.4819/UNS N10276) per ASTM B619/B626, offering excellent corrosion resistance for chemical processing, power generation, and flue gas systems.1.Nickel Alloy C-276/UNS N10276/DIN 2.4819 Chemical CompositionThe outstanding performance of Alloy C-276 stems from its balanced elemental composition:ElementContent (% Weight)FunctionNickel (Ni)57 (min)Base metal, ensures ductilityMolybdenum (Mo)15–17Enhances chloride resistanceChromium (Cr)14.5–16.5Improves oxidation resistanceIron (Fe)4–7Stabilizes structureTungsten (W)3–4.5Strengthens alloyCobalt (Co)≤ 2.5Optional for specific gradesCarbon (C)≤ 0.01Reduces carbide precipitationManganese (Mn)≤ 1.0DeoxidizerSilicon (Si)≤ 0.08Prevents hot crackingPhosphorus (P)≤ 0.04Controls impuritiesSulfur (S)≤ 0.03Minimizes hot shortnessNote: Trace elements (V, Cu) ≤ 0.5% collectively.2. Physical & Mechanical Properties2.1 Physical PropertiesPropertyValueDensity8.89 g/cm³ (±1–2%)Melting Point1325–1370°CThermal Conductivity10.2 W/m·K (at 100°C)Electrical Resistivity1.30 μΩ·mMagnetic Permeability≤ 1.001 (non-magnetic)2.2 Mechanical PropertiesConditionTensile Strength (MPa)Yield Strength (MPa)Elongation (%)Hardness (HRB)Annealed≥ 690≥ 283≥ 40≤ 100Cold WorkedUp to 1100Up to 800≥ 20≤ 220Remark: Data applies to Hastelloy C-276 seamless pipe and Hastelloy C-276 sheet at room temperature.3. Product Range by KCMSSKCM SPECIAL STEEL manufactures the following Nickel Alloy C-276 products:3.1 Pipes & TubesHastelloy C-276 seamless pipe (ASTM B622, ASME SB622)Hastelloy C-276 welded tube (ASTM B619/B626)Sizes: OD 6mm–1200mm, Wall Thickness 0.5mm–50mm3.2 UNS N10276 Pipe Fittings & FlangesHastelloy C-276 pipe fittings: Elbows, tees, reducers, Caps, Cross, Stub Ends (ASME B16.9/B16.28)Hastelloy C-276 flange: Slip-on, weld neck, Blind, Socket Weld, Thread, Lap Joint (ASME B16.5/B16.47)3.3 Other FormsHastelloy C-276 round bar (ASTM B574)Hastelloy C-276 plate/sheet (ASTM B575)Hastelloy C-276 wire rod (AWS A5.14)4. ApplicationsUNS N10276 pipe and DIN 2.4819 tube are widely used in:IndustryApplication ExamplesChemical ProcessingReactors, scrubbers, acid storage tanksOil & GasDownhole components, sour gas pipelinesPharmaceuticalsCIP/SIP systems, bioreactorsPollution ControlFlue gas desulfurization (FGD) systemsMarineSeawater heat exchangers, propeller shaftsTransition phrase: Notably, the alloy C-276 flange outperforms stainless steels in wet chlorine service.5. Why Choose KCMSS?As a certified manufacturer, KCM SPECIAL STEEL guarantees:Material Traceability: Mill test reports (MTRs) for all Nickel alloy C-276 pipe fittingsCustom Fabrication: Laser cutting, bending for Hastelloy C-276 strip and flat barGlobal Compliance: ASTM, EN, DIN, JIS, and GB standardsConclusion-Nickel Alloy Hastelloy C-276 Plate,Sheet,Bar,Wire Rod,Pipe Fittings, Flanges, Strip, Forgings UNS N10276 2.4819Hastelloy C-276 (UNS N10276/DIN 2.4819) remains the gold standard for corrosion-resistant alloys. KCMSS delivers reliable Hastelloy C-276 seamless tube, welded pipe, and flange solutions tailored to extreme conditions. For project-specific requirements, contact KCM SPECIAL STEEL for technical support and competitive pricing.Nickel Alloy Hastelloy C-276 Pipe and Fittings UNS N10276 2.4819: Case Studies and Technical SpecificationsIntroductionHastelloy C-276 (UNS N10276/DIN 2.4819) represents the gold standard in corrosion-resistant nickel alloys, offering exceptional performance in the most aggressive industrial environments. As a premier manufacturer, KCM SPECIAL STEEL (KCMSS) has supplied Hastelloy C-276 pipe, Hastelloy C-276 tube, and Hastelloy C-276 pipe fittings to critical applications worldwide. This article presents three detailed case studies demonstrating the alloy’s real-world performance, supported by comprehensive technical data on composition, properties, and product specifications.Case Study 1: Chemical Processing Plant – Sulfuric Acid ServiceProject BackgroundA major chemical processor in Germany required replacement piping for their sulfuric acid concentration unit after repeated failures of 316L stainless steel components. The system operated at 85°C with 98% H₂SO₄ containing chlorides up to 500 ppm.Solution ImplementedKCMSS supplied:Hastelloy C-276 seamless pipe (ASTM B622, DN150 schedule 40S)Hastelloy C-276 flange (ASME B16.5 Class 300)Custom Hastelloy C-276 pipe fittings including 90° elbows and reducersPerformance ResultsAfter 5 years of continuous operation:No measurable wall thickness loss (UT measurements)Zero pitting or stress corrosion crackingMaintenance costs reduced by 72% compared to previous systemProjected service life extended to 15 yearsCase Study 2: Offshore Oil & Gas – Sour Service ApplicationsChallengeA North Sea platform experienced catastrophic failures in carbon steel flowlines handling produced water with:H₂S concentration: 5,000 ppmCO₂ partial pressure: 8 barChlorides: 80,000 ppmTemperature: 65°CKCMSS SolutionEngineered system featuring:UNS N10276 pipe (6″ OD, 12.7mm WT, ASTM B619)DIN 2.4819 flange (PN100, RTJ face)Hastelloy C-276 welded pipe for jumper connectionsOperational OutcomesZero corrosion-related failures in 7 years of serviceEliminated chemical inhibition requirementsROI achieved in 3.2 years through reduced downtimeCase Study 3: Pharmaceutical CIP/SIP SystemsProblem StatementA vaccine manufacturer needed to upgrade their clean-in-place (CIP) system that showed:Crevice corrosion at weldsChloride-induced stress crackingSurface pitting affecting sterilityTechnical SolutionKCMSS provided:Electropolished Hastelloy C-276 tube (3″ OD, 1.65mm WT)Orbital welded Nickel alloy C-276 pipe fittingsAlloy C-276 flange with sanitary finishesValidation ResultsPassed 5,000 sterilization cycles (121°C, 15 psi steam)Surface roughness maintained at <0.5 μm RaNo detectable iron contaminationValidated for FDA 21 CFR Part 11 complianceTechnical SpecificationsChemical Composition (Weight %)ElementMinMaxFunctionNi57.0BalanceMatrixMo15.017.0Chloride resistanceCr14.516.5Oxidation resistanceFe4.07.0StabilizationW3.04.5Solid solution strengtheningCo–2.5OptionalC–0.01Carbide controlMn–1.0DeoxidationSi–0.08FluidityP–0.04PurityS–0.03Hot workabilityPhysical PropertiesPropertyValueConditionsDensity8.89 g/cm³±1-2% varianceMelting Range1325-1370°C–Thermal Expansion11.3 μm/m°C20-100°CThermal Conductivity10.2 W/m·K100°CElectrical Resistivity1.30 μΩ·m20°CMagnetic Permeability≤1.001–Mechanical PropertiesProduct FormConditionTensile (MPa)Yield (MPa)Elongation (%)Hardness (HRB)PipeAnnealed≥690≥283≥40≤100TubeCold Worked900-1100600-800≥20≤220PlateHot Rolled710-930310-410≥45≤95BarSolution Treated760-1000350-550≥35≤22 HRCProduct Range SpecificationsAlloy C276 Pipes & TubesTypeStandardSize RangeWall ThicknessSeamless PipeASTM B6221/8″-24″SCH 5S-XXSWelded TubeASTM B6196-1200mm OD0.5-50mmSanitary TubeASME BPE1/2″-6″0.065″-0.120″Alloy C-276 Pipe Fittings & FlangesComponentStandardPressure ClassConnection TypesElbows/TeesASME B16.93000#-9000#Butt weldReducersASME B16.28300#-2500#Weld/ScrewedFlangesASME B16.5150#-2500#RF/RTJ/FFIndustrial ApplicationsSectorApplication ExamplesBenefitChemicalReactors, scrubbersChloride resistanceOil & GasDownhole toolsH₂S immunityPharmaBioreactorsSterilityFGDDuctingAcid resistanceMarineHeat exchangersSeawater toleranceWhy KCMSS for Your Hastelloy Needs?Material Expertise: 25 years specializing in nickel alloysQuality Assurance: Full traceability with PMI testingCustom Capabilities: Laser cutting, forming, weldingGlobal Logistics: Timely delivery worldwideTechnical Support: Application engineering servicesConclusionThese case studies demonstrate how Hastelloy C-276 pipe, Hastelloy C-276 tube, and associated fittings from KCMSS solve severe corrosion challenges across industries. With its unique combination of nickel, molybdenum, and chromium, UNS N10276/DIN 2.4819 delivers unmatched performance where other materials fail. For your next critical application, consult KCM SPECIAL STEEL for engineered solutions using this remarkable alloy.Nickel Alloy Hastelloy C-276 Pipe and Fittings UNS N10276 2.4819 – FAQIntroductionAs a leading manufacturer of corrosion-resistant alloys, KCM SPECIAL STEEL (KCMSS) presents this detailed FAQ guide addressing common technical and commercial questions about Hastelloy C-276 pipe, Hastelloy C-276 tube, and related fittings. This resource combines practical application knowledge with precise technical specifications for engineers, purchasers, and maintenance professionals.1. Basic Material QuestionsQ: What makes Hastelloy C-276 superior to stainless steels?A: The nickel-molybdenum-chromium composition provides exceptional resistance to:Pitting/crevice corrosion (Critical Pitting Temperature >100°C)Chloride stress corrosion crackingReducing and oxidizing mediaSulfuric, hydrochloric, and phosphoric acidsQ: What’s the density of Hastelloy C-276?A: 8.89 g/cm³ (±1-2% manufacturing variance)2. Product SpecificationsQ: What Hastelloy C-276 pipe sizes does KCMSS supply?TypeSize RangeWall ThicknessStandardSeamless1/8″-24″SCH 5S-XXSASTM B622Welded6-1200mm OD0.5-50mmASTM B619Q: Are DIN 2.4819 flange available in all pressure ratings?Yes, from PN6 to PN100 (ASME 150# to 2500#), including:Slip-on (SO)Weld neck (WN)Lap joint (LJ)Blind (BL)Thread(TH)Socket Weld(SW)3. Chemical CompositionQ: Why does Alloy C-276 contain tungsten?The 3-4.5% W enhances:Localized corrosion resistanceMechanical strength at high temperaturesStability in mixed acid environmentsFull Composition Table:ElementMin (%)Max (%)Key BenefitNi57.0BalanceMatrixMo15.017.0Chloride resistanceCr14.516.5OxidationFe4.07.0Cost controlW3.04.5StrengthCo–2.5Optional4. Mechanical PropertiesQ: What are the strength values for UNS N10276 pipe?ConditionTensile (MPa)Yield (MPa)Elongation (%)Annealed≥690≥283≥40Cold Worked900-1100600-800≥20Q: How does temperature affect Hastelloy C-276 tube properties?Temp (°C)Tensile (MPa)Yield (MPa)207603502007103104006502905. Fabrication & InstallationQ: Can Nickel alloy C-276 pipe fittings be welded?Yes, using:GTAW with ERNiCrMo-4 fillerLow heat input (≤1.2 kJ/mm)Back purging (Argon ≥99.995%)Q: What surface finishes are available for Hastelloy C-276 sheet?2B (Cold rolled, bright annealed)No.4 (Brushed)BA (Bright annealed)Electropolished (Ra <0.5μm)6. ApplicationsQ: Where should I use Hastelloy C-276 seamless tube vs. welded?ApplicationRecommended TypeReasonHigh pressureSeamlessNo weld defectsLarge diametersWeldedCost-effectiveUltra-high puritySeamlessFewer inclusionsIndustry-Specific Uses:SectorTypical ComponentsChemicalReactor liners, quench systemsOil & GasDownhole tools, Christmas treesPharmaSterilizable transfer linesFGDMist eliminators, ducting7. Quality AssuranceQ: What Quality Compliance come with KCMSS Hastelloy C-276 products?Mill Test Reports per EN 10204 3.1PMI (Positive Material Identification)NDE reports (UT, RT, PT as applicable)ISO 9001:2015 manufacturing8. Purchasing ConsiderationsQ: What’s the lead time for DIN 2.4819 pipe fittings?Standard items: 4-6 weeks Custom sizes: 8-12 weeks Expedited: Available for 30% premiumQ: Does KCMSS provide Hastelloy C-276 round bar machining services?Yes, including:Precision turning (±0.05mm)Threading (API, metric, UN)Grooving/knurlingTechnical AppendixComparative Corrosion ResistanceMediumConcentrationTemp (°C)Corrosion Rate (mm/year)Sulfuric acid10P<0.1Hydrochloric20%0.5Phosphoric850<0.05Physical Properties TablePropertyValueTest StandardDensity8.89 g/cm³ASTM B311CTE11.3 μm/m°CASTM E228Modulus205 GPaASTM E111ConclusionThis FAQ covers essential technical and commercial aspects of Hastelloy C-276 piping systems from KCM SPECIAL STEEL. For project-specific inquiries about UNS N10276 pipe, Alloy C-276 flange, or other products, contact our technical sales team with your complete service conditions for tailored recommendations.Comprehensive Summary: Hastelloy C-276 Piping Solutions by KCM SPECIAL STEELExecutive OverviewHastelloy C-276 (UNS N10276/DIN 2.4819) represents the pinnacle of corrosion-resistant nickel alloys for critical industrial applications. As a premier supplier, KCM SPECIAL STEEL (KCMSS) provides comprehensive solutions encompassing Hastelloy C-276 pipe, tube, flange, and fittings that outperform conventional materials in aggressive environments. This summary consolidates key technical and commercial aspects while introducing new perspectives on material selection and application engineering.Material Superiority AnalysisUnique Composition AdvantagesThe alloy’s optimized chemistry delivers unmatched performance:Nickel Base (57% min): Provides inherent corrosion resistance and maintains austenitic structureMolybdenum (15-17%): Enhances resistance to reducing agents and localized corrosionChromium (14.5-16.5%): Improves oxidation resistance at elevated temperaturesTungsten (3-4.5%): Strengthens the matrix against acidic mediaComparative Performance MetricsMaterialCPT (°C)CCT (°C)SCC Threshold316L SS256050 ppm Cl-6Mo SS4585500 ppm Cl-C-276>100>10010,000 ppm Cl-Product Portfolio HighlightsPiping Systems EngineeringKCMSS offers complete system solutions:Primary Components:Seamless pipe: ASTM B622 for high-pressure serviceWelded tube: Economical large diameter optionsSanitary tubing: Electropolished for purity-critical applicationsConnection Solutions:Butt-weld fittings: ASME B16.9/B16.28Flanges: Full range of ASME/DIN standardsSpecialty joints: For thermal expansion managementProduct Form AvailabilityProduct FormSize RangeKey FeaturesPipe1/8″-24″Seamless/welded optionsTube6-1200mm ODThin-wall to heavy-wallBar5-500mmHot/cold finishedPlate0.5-100mmQuarter/half-hard tempersAdvanced Manufacturing CapabilitiesValue-Added ProcessingKCMSS enhances base materials through:Precision Forming:Cold drawing for tight tolerancesRotary straightening for straightnessExpansion/controlling for fit-upSurface Engineering:Pickling/passivationElectropolishing (Ra <0.4μm)Bead blasting for adhesionWelding Expertise:Orbital welding for sanitary systemsAutomated GTAW for consistencyPWHT when requiredApplication-Specific EngineeringCritical Service SolutionsChemical Processing:Reactor liners handling mixed acidsQuench systems for high-temperature streamsDistillation column internalsEnergy Sector:FGD scrubber componentsSour gas handling systemsGeothermal brine pipingPharmaceutical:CIP/SIP transfer linesBioreactor vesselsPurified water distributionFailure Prevention StrategiesCommon application pitfalls and KCMSS solutions:Failure ModeRoot CauseKCMSS SolutionCrevice corrosionStagnant zonesOptimized joint designsSCCChlorides stressProper annealingErosion-corrosionHigh velocityWall thickness managementTechnical Service ApproachMaterial Selection MethodologyKCMSS employs a systematic approach:Service Condition Analysis:Temperature/pressure profilesChemical exposure matrixCyclic loading conditionsFailure Mode Assessment:Corrosion mechanism identificationMechanical stress evaluationThermal degradation risksSolution Development:Material grade selectionProduct form optimizationFabrication method specificationLifecycle Cost ModelingComparative analysis demonstrates C-276’s value:Cost FactorC-276AlternativeSavingsInstallation1.2X––Maintenance0.3X1X70%Downtime0.1X1X90%Lifecycle0.7X1X30%Quality Assurance FrameworkComprehensive CertificationMaterial Traceability:Heat number trackingMill test reportsPMI verificationProcess Validation:WPS/PQR documentationNDE records (RT/UT/PT)Dimensional inspection reportsPerformance Testing:Corrosion coupon testingMechanical property verificationCleanliness validationEmerging ApplicationsInnovative UsesHydrogen Economy:Electrolyzer componentsHydrogen storage systemsFuel cell bipolar platesWaste Treatment:Flue gas scrubbingLeachate handlingIncinerator componentsSemiconductor:Ultra-high purity gas linesWafer processing equipmentChemical mechanical planarizationConclusionKCM SPECIAL STEEL‘s expertise in Hastelloy C-276 solutions provides industries with reliable, long-lasting performance in the world’s most challenging environments. Through advanced manufacturing, rigorous quality control, and application-specific engineering, we deliver value beyond basic material supply. For projects requiring exceptional corrosion resistance coupled with mechanical reliability, our technical team stands ready to develop optimized solutions tailored to your operational requirements and economic parameters.
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