High Strength Incoloy 800 Alloy Bar for Industrial Furnaces and High Temperature Equipment

Product Name: Incoloy 800 Bar (Standard Grade)
Material Type: Nickel-Iron-Chromium Superalloy (Austenitic Structure)
Standards: ASTM B408, AMS 5766, UNS N08800, DIN 1.4876
Forms Available: Hot-rolled bars, cold-finished bars, and forged bars
Diameter Range: 5 mm to 150 mm (custom sizes up to 300 mm upon request)
Surface Finish: Black oxide, turned, ground, or polished (Ra ≤ 0.8 μm)
Operating Temperature:

• Continuous service: Up to 815°C (1500°F)

• Short-term exposure: Up to 980°C (1800°F)
  Certifications: ASME SB408, PED 2014/68/EU, and NACE MR-0175 for mild sour service

Incoloy 800 bars are designed for extreme heat and aggressive environments. Here are some of the essential characteristics:

• Oxidation Resistance: Forms a protective Cr₂O₃-rich oxide layer, reducing scaling by 40% compared to 310S stainless steel at 800°C, which significantly improves material lifespan in high-temperature settings.

• Carburization Resistance: Excellent stability in carbon-rich environments (e.g., ethylene crackers), maintaining carbon activity below 0.5 after 10,000 hours at 700°C.

• Thermal Fatigue Resistance: With a low thermal expansion coefficient (14.8 μm/m·°C at 20–600°C), Incoloy 800 reduces stress during thermal cycling, making it suitable for fluctuating temperatures.

• Mechanical Strength: The material retains a 200 MPa yield strength at 700°C, outperforming many other alloys, including Alloy 600, in creep-limited applications.

• Fabrication Flexibility: Incoloy 800 offers excellent weldability (autogenous TIG welding is possible) and machinability (rated at 70% compared to 316L stainless steel).

Chemical Composition Requirement

The Incoloy 800 alloy bars are crafted using precise manufacturing techniques to meet high-performance standards:

• Electric Arc Furnace (EAF) + AOD Refining: Controls carbon levels to ≤0.08% and sulfur to ≤0.015% for superior material properties.

• Hot Rolling: The alloy is processed at 1150–1200°C, refining the grain structure (ASTM 3-5) to enhance strength and ductility.

• Heat Treatment: Solution annealing at 1010–1060°C (1850–1940°F) followed by water quenching, and stress-relief annealing at 870°C (1600°F) for cold-worked bars to ensure stability.

• Quality Control: Comprehensive testing including ultrasonic testing (per ASTM A388), high-temperature tensile testing (per ASTM E21), and eddy current testing for surface defects.

Incoloy 800 bars are commonly used in demanding high-temperature applications across various industries:

• Petrochemical: Incoloy 800 is ideal for ethylene cracking furnace tubes, reformer pigtails, and pyrolysis coil hangers, providing stability under extreme heat.

• Power Generation: The alloy is used in steam turbine bolts, superheater tube hangers, and boiler baffle plates, offering strength at high temperatures.

• Heat Treatment: Incoloy 800 is perfect for fixtures used in annealing furnaces, carburizing trays, and sintering boat components, ensuring durability and heat resistance.

• Chemical Processing: Commonly used in reactor agitator shafts for nitric acid production and chlorine gas preheaters due to its resistance to corrosion and thermal fatigue.

Choosing Incoloy 800 bars comes with multiple benefits, making it a reliable choice for industries requiring high-strength materials at elevated temperatures:

• Market Leadership: Ranked among the top 5 in China's nonferrous metal industry, ensuring a trusted and established presence in the market.

• Product Flexibility: With thousands of product specifications available, Incoloy 800 bars can meet the diverse needs of buyers across various sectors.

• Low MOQ: Our flexible production allows for small batch orders, and we can provide customized samples to meet specific requirements.

• Fast Delivery: We prioritize short production lead times, ensuring prompt delivery for timely project completion.

• Professional Inspection: Our advanced equipment, including spectrometers and tensile testers, guarantees the highest quality and standards before shipment.

• Comprehensive Customer Service: Our professional business team is available 24/7 for inquiries and quotations, providing tailored recommendations to help you choose the best products for your needs.

• Secure Packaging: We offer customized packaging, including wooden boxes, ensuring your goods arrive safely and in perfect condition.

• Diverse Payment Methods: We facilitate smooth transactions through various payment options to enhance customer experience.

• Customer Satisfaction: We have built long-term relationships with our clients, with some partnerships lasting over seven years.

• Industry Recognition: We’ve received numerous awards, including annual recognition from Google for our commitment to excellence.

CHANGZHOU DLX ALLOY CO, LTD was established in 2002 and has got ISO9001 International Quality Management System Certificate and SGS Certificate. Our factory is professional in researching and producing special alloy material. From melting, drawing, heat treatment, finishing and testing .We offer nickel based, copper-based, and iron-based alloys, including super alloy, welding materials, anti-corrosion alloy, Precision Alloy , FeCrAl alloy, NiCr alloy, CuNi alloy, thermocouple and etc, in the form of wire, strip, ribbon, bar, tube, plate.

Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications. We also provide chemical analysis reports for every FeCrAl alloy, NiCr alloy, and other products purchased.

For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.

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FAQ

• What industries use Incoloy 800 alloy bars?
  Incoloy 800 alloy bars are widely used in petrochemical, power generation, heat treatment, and chemical processing industries, thanks to their superior heat resistance and durability.

• How can I contact your company?
  You can reach our professional sales team for inquiries, quotes, and support through our website or email. Our team is available 24/7 to assist with your product needs.

• Can I request custom sizes or specific requirements for Incoloy 800 bars?
  Yes, we offer customization for product sizes and specifications to meet your unique project requirements.

• What quality assurance processes do you follow?
  We ensure every batch undergoes rigorous quality control, including ultrasonic, tensile, and eddy current testing, to guarantee top-quality products.

• What is the lead time for delivery?
  We offer a fast production lead time, with prompt delivery to ensure your project stays on schedule.