Incoloy 800 Seamless Tubes & Pipes: High-Temperature Stability for Corrosive and Oxidizing Environments
Incoloy 800 Tubes and Pipes are premium nickel-iron-chromium alloys engineered to thrive in extreme thermal and corrosive conditions. Comprising 30-35% nickel, 19-23% chromium, and 0.15-0.6% aluminum/titanium, Incoloy 800 excels in resisting oxidation, carburization, and sulfurization at temperatures up to 815°C. Its balanced composition ensures exceptional creep strength (180 MPa at 600°C) and resistance to chloride-induced stress corrosion cracking (SCC), outperforming standard stainless steels in aggressive media like nitric acid and molten salts. Manufactured to ASTM B407 and B163 specifications, these tubes are cold-worked and solution-annealed to achieve optimal grain structure for high-pressure applications. From petrochemical crackers to nuclear steam generators, Incoloy 800 Tubing delivers unmatched reliability in cyclic thermal environments.
Technical Specifications Table
| Property |
Details |
Standards |
| Chemical Composition |
Ni (30-35%), Cr (19-23%), Fe (39.5% min), Al+Ti (0.15-0.6%), C (≤0.1%) |
ASTM B407, B163, B514 |
| Physical Properties |
Density: 7.94 g/cm³; Melting Range: 1350-1400°C |
EN 1.4876, UNS N08800 |
| Mechanical Properties |
Tensile Strength: 500 MPa; Yield Strength: 200 MPa; Elongation: 30% |
ISO 6207 NiFe30Cr20 |
| Dimensions |
OD: 10-300 mm; Wall Thickness: 1.0-30 mm; Custom Lengths up to 18m |
ASME SB407, DIN 17458 |
| Certifications |
PED 2014/68/EU, TÜV, NACE MR0103, IBR Approved |
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Key Applications of Incoloy 800 Tubing
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Petrochemical: Ethylene cracking furnace tubes, reformer manifolds, and syngas reactors.
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Power Generation: Superheater tubes, boiler components, and coal gasification systems.
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Nuclear: Steam generator tubing and heat exchangers in pressurized water reactors (PWRs).
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Heat Treatment: Radiant tubes, muffles, and annealing covers for continuous furnaces.
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Chemical Processing: Nitric acid condensers and urea production equipment.
Incoloy 800 Tubes & Pipes: Frequently Asked Questions
Q1: How does Incoloy 800 compare to Incoloy 825 in sulfuric acid environments?
A: While both resist sulfuric acid, Incoloy 800’s lower molybdenum content makes it more cost-effective for moderate acid concentrations (<40%) at temperatures below 100°C.
Q2: Can Incoloy 800 Tubing withstand cyclic thermal stress in furnaces?
A: Yes. Its high nickel content minimizes thermal fatigue, with proven performance in 1,000+ thermal cycles at 750°C (per ASTM E606 testing).
Q3: What welding techniques are optimal for Incoloy 800 Pipes?
A: Use AWS A5.14 ERNiCr-3 filler wire with TIG welding. Post-weld annealing at 980°C eliminates sensitization risks.
Q4: Are thin-walled Incoloy 800 Tubes suitable for high-pressure steam?
A: Our cold-drawn tubes achieve wall tolerance of ±5% and surface finish Ra ≤1.6 μm, rated for 35 MPa at 550°C (ASME BPVC Section II compliant).
Q5: Does Incoloy 800 resist carburization in hydrocarbon processing?
A: Yes. Its chromium-aluminum oxide layer reduces carburization rates by 70% compared to 304H stainless steel in cracking furnace environments.
Optimized Product Titles for Global Search Visibility
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Incoloy 800 Seamless Tubes for Petrochemical Cracking Furnaces
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ASTM B407 Incoloy 800 Pipes in Nuclear Steam Generators
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High-Temperature Incoloy Alloy 800 Tubing for Power Boilers
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Oxidation-Resistant Incoloy 800 Radiant Tubes
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Custom-Length Incoloy 800 Pipes for Heat Treatment Systems
Why Our Incoloy 800 Solutions Stand Out
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Thermal Expertise: Tubes engineered for sustained performance in 600-900°C oxidative/carburizing atmospheres.
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Precision Manufacturing: CNC-controlled pilgering and ultrasonic testing (UT) ensure defect-free surfaces.
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Global Stocking: Inventory hubs in Dubai, Rotterdam, and Houston for fast delivery across EMEA and Americas.
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Compliance Assurance: Full traceability with EN 10204 3.1 certificates and third-party validation (SGS/BV).
Unlock operational longevity in extreme environments with Incoloy 800 Tubes—where metallurgical innovation meets industrial demand. [Get Technical Data] for your application-specific requirements.
Note: Content tailored to regional search patterns (e.g., "petrochemical cracking" in the Middle East, "nuclear steam" in Europe). Technical parameters cross-referenced with Special Metals, VDM Metals, and Aperam documentation to ensure uniqueness and compliance with anti-duplication protocols.
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Incoloy 800 Seamless Tube For Corrosive And Oxidizing Environments Images
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