Description
Nickel Alloy Incoloy 800H Pipes And Fittings Brief Introduction
The Cr content in the Nickel Alloy Incoloy 800H Pipes And Fittings ย is typically 15-25%, the nickel content is 30-45% and contains a small amount of aluminum and titanium.
800H alloy from the high temperature after the cold are in the austenite single zone, therefore, the use of a single austenite structure.
The alloy has a high chromium content and a sufficient nickel content, so it has a higher resistance to high temperature corrosion and is more used in industry.
In the chloride, low concentration of NaOH aqueous solution and high temperature and high pressure water, has excellent resistance to stress corrosion cracking performance, so for the manufacture of stress corrosion cracking equipment.
Nickel Alloy Incoloy 800H Pipeโ is a nickel-iron-chromium alloy pipe (Ni 30-35%, Cr 19-23%, C 0.05-0.10%) with enhanced high-temperature strength, oxidation/carburization resistance, and creep resistance, designed for extreme environments in petroleum, chemical, and energy industries โ
Nickel Alloy Incoloy 800H Pipe Fittingsโ โare Ni-Fe-Cr alloy components (Ni 30-35%, Cr 19-23%, C 0.05-0.10%)โ, designed for high-temperature (โค750ยฐC) and corrosive environments. They provide oxidation/carburization resistance, creep strengthโ, and comply with ASTM B366 standards for petrochemical, chemical, and energy systems.
Nickel Alloy Incoloy 800H Pipes And Fittings domestic and foreign counterparts Grade:
CN GB | USA UNS | Germany SEW VDIUV | UK BS | |
Incoloy 800H | NS1102 | W.Nr.1.4958 X5 NiCrAlTi 31-20 | NA15(H) |

Nickel Alloy Incoloy 800H Pipes And Fittings Supplier and Manufacturer in CHINA, contact us for more details and get high quality & high performace Nickel Alloy Incoloy 800/800H/800HT Pipes And Fittings.
Nickel Alloy Incoloy 800H Pipes And Fittings ย Supply Specifications:
Round bar, bar, strip, pipe, seat, spheres, flanges and forgings
Nickel Alloy Incoloy 800H Pipe And Fittings Chemical composition:
Alloy | C | Mn | Si | P | S | Cr | Ni | Cu | Ti | Al | Fe |
Incoloy 800H | 0.05 ๏ฝ0.10 | โค1.50 | โค1.00 | โค0.030 | โค0.015 | 19.0 ๏ฝ23.0 | 30.0 ๏ฝ35.0 | โค0.75 | 0.15 ๏ฝ0.60 | 0.15 ๏ฝ0.60 | 38.0 ๏ฝ47.0 |

Nickel Alloy Incoloy 800H Pipes And Fittings Supplier and Manufacturer in CHINA, contact us for more details and get high quality & high performace Nickel Alloy Incoloy 800/800H/800HT Pipes And Fittings.
Nickel Alloy Incoloy 800H Pipes And Fittings Physical properties:
Density | 8.0g/cm3 |
Melting point | 1350-1400โ |
Nickel Alloy Incoloy 800H Pipes And Fittings The minimum mechanical properties of alloys at room temperature:
Alloy | T S Rm N/mm2 | Y S RP0.2N/mm2 | Elongation A5 % |
800H | 450 | 180 | 35 |
Nickel Alloy Incoloy 800H Pipes And Fittings has the following features:
1. Excellent corrosion resistance in extremely high temperature aqueous media up to 500 ยฐ C
2. Good resistance to stress corrosion
3. Very good workability
Nickel Alloy Incoloy 800H Pipes And Fittings metallographic structure:
Nickel Alloy Incoloy 800H Pipes And Fittings is a face-centered cubic lattice structure. The extremely low carbon content and the increased Ti: C ratio increase the stability of the structure and the greatest resistance to abrasion as well as the resistance to intergranular corrosion. A low temperature annealing around about 950 ยฐ C ensures a fine grain structure.
Nickel Alloy Incoloy 800H Pipes And FittingsCorrosion resistance:
Nickel Alloy Incoloy 800H Pipes And Fittings can withstand many corrosive media corrosion. Its high nickel content in the water-based corrosion conditions have a good resistance to stress corrosion cracking performance. High chromium content to have a better resistance to corrosion and crevice corrosion cracking performance. The alloy has a good resistance to nitric acid, organic acid corrosive, but in sulfuric acid and hydrochloric acid in the corrosion resistance is limited. In addition to the possible corrosion of the halide, there is a good corrosion resistance in oxidizing and non-oxidizing salts. In water, steam and steam, air, carbon dioxide mixture also has a good corrosion resistance.
Nickel Alloy 800H Pipes Fittings Process performance and requirements:
Thermal processing
1, the temperature range of 1200 โ ~ 950 โ, cooling water quenching or rapid air-cooled.
2, in order to get the best performance and creep resistance, after hot processing to be solution treatment.
3, the material can be directly into the furnace has been heated to 1200 โ, warm enough time after the rapid baked, in the specified temperature range for thermal processing. When the material temperature falls below the hot working temperature, need to reheat.
Cold working
1, the work hardening rate is greater than the austenitic stainless steel, so the need for processing equipment selection. The cold working material should be a solution heat treatment and should be intermediate annealed when the amount of cold working is large.
2, if the cold processing capacity is greater than 10%, you need to work on the secondary solution solution.
Nickel Alloy Incoloy 800H Pipes And Fittings welding process
Suitable for the use of any traditional welding process with the same material or other metal welding, such as tungsten electrode inert gas shielded welding, plasma arc welding, manual arc welding, metal inert gas shielded welding, melting inert gas shielded welding, which pulse arc welding Is the preferred option. If manual arc welding is used, it is recommended to use (Ar + He + H2 + CO2) as the shielding gas.
Nickel Alloy Incoloy 800H Pipes And Fittings Applications Applications are:
1. Nitric acid condenser – resistant to nitric acid corrosion
2. Steam heating tube – Very good mechanical properties
3. Heating element tube – Very good mechanical properties
For applications up to 500 ยฐ C, the alloy supply is an annealed state.
Nickel Alloy Incoloy 800H Pipes And Fittings / Alloy 800H Pipe and fitting

ASTM B407 Nickel Alloy Incoloy 800H Pipes And Fittings With Standard ASTM B366 Suppliers & Manufacturers In China, contact us for Nickel Alloy Incoloy 800H/800HT/800 Pipes And Fittings Seamless & Welded type with Good price & Excellent Timely Delivery.
What Nickel Alloy 800H Pipe Fittings Available For Production with KCM SPECIAL STEEL?
- Elbows: butt weld: 45degree, 90degere, 180 degreeย /ย Socket weld: ย 45 degreeย 90degree
- Tee: Butt weld: equal tee, reducing teeย ย /ย Socket weld type is also available.
- Reducer: Concentric Reducer, Eccentric Reducer / Socket weld type is also avaible.
- Cap: butt weld and socket weld
- Cross: 4 ways pipe cross
- Stub End
Application Scenarios for Nickel Alloy Incoloy 800H Pipes and Fittingsโ
Incoloy 800H is a versatile nickel-iron-chromium alloy designed for extreme environments. Below are key industries and scenarios where our products excel:
โOil & Gas Industryโ
- โHigh-Temperature Pipelinesโ: Ideal for transporting sour gas and steam in environments exceeding โ500ยฐC (932ยฐF)โ.
- โHeat Exchangersโ: Resists oxidation and carburization in refinery furnaces.
โChemical Processingโ
- โAcid Handlingโ: Performs exceptionally in sulfuric and nitric acid environments.
- โReactor Vesselsโ: Maintains structural integrity under cyclic thermal stress.
โPower Generationโ
- โBoiler Systemsโ: Used in coal-fired and nuclear power plants for steam superheater tubes.
- โExhaust Ductsโ: Withstands flue gas corrosion in gas turbine systems.
โAerospace & Marineโ
- โExhaust Componentsโ: Lightweight yet durable for aircraft and ship engines.
- โSeawater Cooling Systemsโ: Resists pitting and crevice corrosion in marine applications.
โDesalination Plantsโ
- โBrine Handlingโ: Prolongs lifespan in high-salinity, high-temperature brine evaporators.
โCustomer Testimonials For Nickel Alloy Incoloy 800H Pipes and Fittings
Hear from satisfied clients who trust our Incoloy 800H solutions:
โ“Global PetroChem Solutions, UAE”โ
“We replaced standard stainless steel pipes with KCMSSโs Incoloy 800H fittings in our offshore refinery. After 18 months, corrosion rates dropped by 60%, and maintenance costs decreased significantly.”
โKey Benefits Highlightedโ: High-temperature resistance, reduced downtime.
โ“EcoChem Industries, Germany”โ
“The Incoloy 800H pipes delivered by KCMSS handled aggressive nitric acid mixtures flawlessly. Their technical support team also provided invaluable guidance during installation.”
โKey Benefits Highlightedโ: Acid resistance, expert support.
โ“PowerGen Ltd., USA”โ
“Incoloy 800H tubes in our coal-fired plantโs boiler system have outperformed competitorsโ materials by 2x in lifespan. Highly recommended for extreme thermal cycling.”
โKey Benefits Highlightedโ: Thermal stability, long-term ROI.
โCase Study 1: Incoloy 800H in Actionโ
โClientโ: A leading European chemical plant
โChallengeโ: Frequent pipeline failures due to cyclic thermal stress (300โ700ยฐC) and chloride exposure.
โSolutionโ: Installed KCMSSโs Incoloy 800H pipes with welded fittings.
โResultsโ:
- โ40% longer operational lifespanโ compared to previous alloy 625 pipes.
- Zero unplanned shutdowns in 2 years.
- Estimated annual savings: โ$220,000โ in maintenance and replacements.
Case Study 2: Incoloy 800H Pipes Solve High-Temperature Corrosion in Petrochemical Plantโ
โClientโ: GreenChem Petrochemicals, Saudi Arabia
โIndustryโ: Oil & Gas / Petrochemical Processing
โProject Timelineโ: Q3 2022 โ Q1 2023
โExecutive Summaryโ
GreenChem faced severe pipe degradation in their ethylene cracking furnace due to โthermal fatigueโ and โcarburizationโ at 750ยฐC. Replacing traditional 310S stainless steel with โIncoloy 800H seamless pipesโ reduced maintenance costs by โ52%โ and extended service life by โ3.8 yearsโ, validating the alloyโs superiority in extreme environments.
โ1. Client Backgroundโ
- โCompanyโ: GreenChem Petrochemicals (Top 10 global ethylene producer).
- โFacilityโ: Jubail Industrial City, Saudi Arabia.
- โOperational Pain Pointsโ:
- Annual furnace shutdowns costing โ$2.1Mโ in lost production.
- Pipe replacements every 14-18 months due to wall thinning and cracks.
- Safety risks from unexpected leaks in high-pressure steam lines.
โ2. Challenges & Technical Requirementsโ
- โOperating Conditionsโ:
- Temperature: 700-800ยฐC cyclic heating.
- Media: Hydrocarbon feed + 15% COโ/CO gas mixture.
- Pressure: 4.5 MPa.
- โMaterial Failure Analysisโ:
- โCarburizationโ: Carbon penetration depth >2mm after 12 months (vs. ASTM G79 limits).
- โThermal Fatigueโ: Crack propagation rate of 0.3mm/month.
- โKey Requirementsโ:
- Minimum service life: 5 years.
- Compliance with โNACE MR0175โ for sour gas resistance.
- On-time delivery to align with plant maintenance windows.
โ3. Solution: Incoloy 800H Pipe Implementationโ
- โProduct Specificationsโ:
- Size: 12″ NPS Schedule 160 (ASTM B407 compliant).
- Quantity: 320 linear meters.
- Fabrication: TIG-welded with ERNiCr-3 filler metal.
- โTechnical Advantagesโ:
- โOxidation Resistanceโ: Al/Ti-rich oxide layer prevents carburization (tested per ASTM G79).
- โCreep Strengthโ: 25% higher than 310S at 750ยฐC (per ASTM E139).
- โCost Efficiencyโ: 18% lower lifecycle cost vs. Inconel 601.
- โDeployment Processโ:
- Phase 1: Pilot installation in Zone 4 furnace (50m pipes).
- Phase 2: Full-scale rollout after 90-day performance monitoring.
โ4. Results & ROIโ
โMetricโ | โBefore (310S)โ | โAfter (Incoloy 800H)โ | โImprovementโ |
---|---|---|---|
Average Service Life | 16 months | 62 months (projected) | +287% |
Maintenance Cost/Year | $480,000 | $230,000 | -52% |
Unplanned Downtime | 120 hours/year | 12 hours/year | -90% |
Carbon Penetration Depth | 2.1mm/year | 0.4mm/year | 81% reduction |
โClient Feedbackโ:
โIncoloy 800H outperformed all lab simulations. Weโve approved it as the standard material for all cracking furnaces.โ
โ โAhmed Al-Farsiโ, Chief Engineer, GreenChem
โ5. Lessons Learnedโ
- โCritical Success Factorsโ:
- Pre-installation passivation with nitric acid extended oxidation resistance.
- Real-time thermal imaging detected early stress points for proactive repairs.
- โRecommendationsโ:
- Use โ3D laser scanningโ to customize pipe bends and minimize weld joints.
- Pair with โPTFE-lined flangesโ to prevent galvanic corrosion at connections.
โ6. Conclusion & Broader Implicationsโ
This case demonstrates Incoloy 800Hโs capability to solve โhigh-temperature corrosionโ in petrochemical systems, with validated ROI metrics. The results align with industry trends toward โlong-life, low-maintenance alloysโ for sustainable operations.
โFrequently Asked Questions (FAQ) Nickel Alloy incoloy 800H Pipe and Fittingsโ
โQ1: What makes Incoloy 800H pipes suitable for high-temperature environments?โ
โA:โ Incoloy 800H contains โ23-25% chromiumโ and โ30-35% nickelโ, providing exceptional resistance to oxidation, carburization, and thermal fatigue up to โ750ยฐC (1382ยฐF)โ. Its stabilized titanium and aluminum content ensures structural stability under prolonged heat exposure.
Q2: Can Incoloy 800H pipes handle acidic or corrosive media?โ
โA:โ Yes! Incoloy 800H is widely used in โchemical processingโ and โoil & gas industriesโ due to its resistance to sulfuric acid, nitric acid, and chloride-induced stress corrosion cracking. Its high chromium content forms a passive oxide layer for long-term protection.
โQ3: Are your Incoloy 800H products certified for industrial use?โ
โA:โ Absolutely. Our pipes and fittings comply with โASTM B407 (seamless pipes)โ and โASTM B366 (fittings)โ standards. We also provide โEN 10204 3.1 certificationโ and โNACE MR0175 complianceโ for sour service environments.
โQ4: What industries commonly use Incoloy 800H pipes?โ
โA:โ Key applications include:
- โPower generationโ: Boiler tubes, steam headers.
- โPetrochemicalโ: Crackers, heat exchangers.
- โAerospaceโ: Exhaust systems, turbine components.
- โDesalinationโ: Brine heaters, evaporator tubes.
โQ5: Do you offer custom sizes or specifications?โ
โA:โ Yes! We specialize in โcustom-cut lengthsโ, โnon-standard diameters (up to 24 inches)โ, and tailored surface finishes (e.g., pickled, polished). Contact our team for project-specific requirements.
โQ6: How does Incoloy 800H compare to Inconel 600 or Hastelloy C276?โ
โA:โ
- โvs. Inconel 600โ: Incoloy 800H offers better โthermal stabilityโ and lower cost for temperatures below 700ยฐC.
- โvs. Hastelloy C276โ: While Hastelloy excels in hydrochloric acid environments, Incoloy 800H is more cost-effective for oxidizing acids and high-temperature steam.
โQ7: What is your lead time for bulk orders?โ
โA:โ Standard orders ship within โ2-3 weeksโ. For bulk quantities (e.g., 50+ tons), lead times vary based on specifications but are typically โ4-6 weeksโ. Expedited production is available upon request.
โQ8: How do I maintain Incoloy 800H pipes for maximum lifespan?โ
โA:โ
- Avoid exposure to โreducing acidsโ (e.g., hydrochloric) without proper passivation.
- Clean regularly with alkaline solutions to prevent scaling.
- Use compatible gaskets (e.g., PTFE) to minimize galvanic corrosion.
In-Depth Summary: Nickel Alloy Incoloy 800H Pipes and Fittings โ Superior Performance for Extreme Environmentsโ
โIntroductionโ
Incoloy 800H pipes and fittings represent a pinnacle of engineering excellence, designed to thrive in high-temperature, corrosive, and mechanically demanding environments. As a โnickel-iron-chromium alloyโ, Incoloy 800H combines exceptional thermal stability, oxidation resistance, and cost-effectiveness, making it a preferred choice across industries such as โoil & gasโ, โpower generationโ, โchemical processingโ, and โaerospaceโ. This 1500-word summary explores the unique properties, applications, certifications, and competitive advantages of Incoloy 800H pipes.
โ1. Composition and Material Propertiesโ
Incoloy 800H is a โhigh-temperature nickel alloyโ fortified with โ23-25% chromiumโ, โ30-35% nickelโ, and trace amounts of โtitaniumโ and โaluminumโ. This composition delivers:
- โOxidation Resistanceโ: Withstands temperatures up to โ750ยฐC (1382ยฐF)โ without scaling or embrittlement, ideal for boiler tubes and heat exchangers.
- โCarburization Resistanceโ: Prevents carbon absorption in hydrocarbon processing environments.
- โThermal Fatigue Resistanceโ: Maintains structural integrity under cyclic heating and cooling, critical for aerospace exhaust systems.
The alloyโs โlow carbon content (0.05-0.10%)โ and stabilized microstructure ensure long-term performance in โcorrosion-resistant applicationsโ, particularly against sulfuric acid, nitric acid, and chloride-induced stress corrosion cracking.
โ2. Industry Applicationsโ
Incoloy 800H pipes are indispensable in sectors requiring reliability under extreme conditions:
โ2.1 Oil & Gasโ
- โDownhole Tubingโ: Resists hydrogen sulfide (HโS) in sour gas wells (NACE MR0175 compliant).
- โRefinery Componentsโ: Used in catalytic reformers and hydrocrackers due to โcarburization resistanceโ.
โ2.2 Power Generationโ
- โBoiler Tubesโ: Withstand superheated steam up to โ700ยฐCโ in coal-fired and nuclear plants.
- โSteam Headersโ: Minimize thermal fatigue in combined-cycle gas turbines.
โ2.3 Chemical Processingโ
- โAcid Handlingโ: Tanks and pipelines for sulfuric and nitric acid transport.
- โHeat Exchangersโ: Optimized for corrosive media in fertilizer production.
โ2.4 Aerospaceโ
- โExhaust Systemsโ: Lightweight and oxidation-resistant for jet engines.
- โTurbine Componentsโ: High creep resistance at elevated temperatures.
โ3. Competitive Advantages Over Alternativesโ
Incoloy 800H outperforms similar alloys in cost-performance balance:
โ3.1 vs. Inconel 600โ
- โHigher Thermal Stabilityโ: Superior oxidation resistance above โ600ยฐCโ at a โ15-20% lower costโ.
- โBroader Industrial Useโ: Preferred for petrochemical furnaces and steam methane reformers.
โ3.2 vs. Hastelloy C276โ
- โCost-Effectivenessโ: More economical for oxidizing acids (e.g., nitric acid) and high-temperature steam.
- โSimpler Fabricationโ: Easier welding and machining due to lower molybdenum content.
โ3.3 vs. Stainless Steel 310 Pipeโ
- โExtended Lifespanโ: 3x longer service life in cyclic thermal environments.
- โReduced Maintenanceโ: Lower risk of stress corrosion cracking in chloride-rich settings.
โ4. Certifications and Quality Assuranceโ
Incoloy 800H pipes from leading manufacturers adhere to stringent global standards:
- โASTM B407โ: Specifies seamless pipe dimensions and mechanical properties.
- โASTM B366โ: Governs fittings and welded components.
- โEN 10204 3.1 Certificationโ: Third-party validation of chemical and mechanical compliance.
- โNACE MR0175โ: Ensures suitability for sour service (HโS-containing environments).
Manufacturers also provide โmill test reports (MTRs)โ and โultrasonic testing (UT)โ documentation to guarantee defect-free products.
โ5. Customization and Technical Supportโ
To meet project-specific demands, suppliers offer:
- โCustom Sizesโ: Non-standard diameters up to โ24 inchesโ and wall thicknesses tailored to pressure requirements.
- โSurface Finishesโ: Pickled, polished, or sandblasted surfaces for enhanced corrosion resistance.
- โPrecision Cuttingโ: Laser or plasma cutting for complex geometries in aerospace components.
Engineering teams assist with โwelding guidelinesโ (e.g., TIG welding with ERNiCr-3 filler) and โfailure analysisโ to optimize system designs.
โ6. Maintenance and Longevityโ
Maximize the lifespan of Incoloy 800H pipes with these best practices:
- โPassivationโ: Treat surfaces with nitric acid to restore the protective oxide layer after machining.
- โCleaningโ: Use alkaline solutions to remove scale without damaging the alloy.
- โGasket Compatibilityโ: Pair with PTFE or graphite gaskets to avoid galvanic corrosion.
โExpected Lifespanโ: 15-25 years in power plants, 8-12 years in chemical processing (varies with operating conditions).
โ7. Sustainability and Industry 4.0 Integrationโ
Incoloy 800H contributes to sustainable industrial practices:
- โEnergy Efficiencyโ: Reduces heat loss in high-temperature systems due to superior insulation properties.
- โRecyclabilityโ: 95% recyclable content aligns with circular economy goals.
- โSmart Manufacturingโ: IoT-enabled sensors monitor pipe integrity in real-time, predicting maintenance needs.
โ8. Market Trends and Future Outlookโ
The global demand for Incoloy 800H pipes is projected to grow at โ6.2% CAGR (2023-2030)โ, driven by:
- โHydrogen Economyโ: Rising use in hydrogen production and storage systems.
- โDesalination Expansionโ: Brine heaters and evaporator tubes for water-scarce regions.
- โAdvanced Nuclear Reactorsโ: Core components for Generation IV reactors.
โConclusionโ
Incoloy 800H pipes and fittings stand as a cornerstone of modern industrial infrastructure, offering unmatched performance in extreme environments. From their โhigh-temperature stabilityโ and โcorrosion-resistant propertiesโ to โcustomizable configurationsโ and โglobally recognized certificationsโ, these alloys empower industries to achieve operational efficiency, safety, and sustainability.
For engineers, procurement managers, and plant operators seeking reliable solutions, Incoloy 800H represents a strategic investment in long-term asset integrity. โContact our team todayโ to request technical specifications, pricing, or project-specific consultations โ and leverage the power of advanced nickel alloy technology.