Durable Incoloy 800H Alloy Bar for High Temperature Boilers and Power Plant Equipment

Incoloy 800H bars are high-performance nickel-iron-chromium superalloy bars, specifically engineered for extreme thermal stability and mechanical resilience in demanding industrial environments. Designed for high-temperature applications, these bars provide exceptional creep resistance, oxidation resistance, and carburization resistance, making them ideal for use in boilers, power plants, and other critical thermal processing systems.

Superior Creep Rupture Strength
Incoloy 800H achieves 10,000-hour rupture life at 800°C/35 MPa, outperforming standard Incoloy 800 by 40%, ensuring reliability in high-temperature applications.

Oxidation and Carburization Resistance
With a dual-layer oxide scale (Cr₂O₃-Al₂O₃) that minimizes oxidation rates to <0.1 g/m²·h at 900°C in air, and a carbon penetration of <0.5 mm after 20,000 hours in hydrocarbon atmospheres, Incoloy 800H offers exceptional protection against harsh operating conditions.

Thermal Fatigue Resistance
With a low thermal expansion coefficient (14.5 μm/m·°C from 20–600°C), the alloy minimizes stress during cyclic heating, extending the lifespan of components.

Phase Stability and Weldability
Incoloy 800H maintains its phase stability (no sigma-phase formation) even after 15,000 hours at 850°C. It is also compatible with TIG and laser welding using AWS A5.14 ERNiCr-3 filler.

Power Generation

• Steam turbine bolts, superheater tube hangers, and boiler baffle plates

• Gas turbine combustor liners and exhaust ducting

Petrochemical

• Ethylene cracking furnace tubes, reformer headers, pyrolysis coil hangers

• Support grids for hydrocracker reactors (750°C/70 bar)

Chemical Processing

• Reactor agitator shafts in nitric acid production

• Chlorine gas preheaters

Heat Treatment

• Fixtures for carburizing furnaces (950°C)

• Sintering furnace trays

Manufacturing Process

Vacuum Induction Melting (VIM)

• Ultra-low impurities (S < 0.005%, P < 0.015%)

• High-quality control for minimal defects

Hot Forging

• Performed at 1100-1200°C to achieve ASTM grain size 3-5

Heat Treatment

• Solution annealing at 1175-1200°C with rapid argon quenching

• Stabilization annealing at 850°C for carbide optimization

Quality Control

• Ultrasonic Testing (UT): Detects internal flaws >1 mm

• High-Temperature Tensile Testing: Performed at 800°C per ASTM E21

• Electron Backscatter Diffraction (EBSD): For grain orientation analysis

1. Market Leader

• Top 5 in China’s nonferrous metal industry.

2. Flexible Products

• Thousands of product specifications to meet diverse buyer needs.

3. Low MOQ

• Custom samples available.

4. Fast Production Lead Time

• Quick production and fast delivery of products.

5. Professional Inspection Equipment

• Comprehensive testing using spectrometers, tensile testers, and other equipment.

6. Expert Business Team

• 24-hour response time and professional recommendations for performance and pricing.

7. Intact Packaging

• Customized packaging, including wooden boxes, to ensure safe delivery.

8. Variety of Payment Methods

• Multiple payment options to suit customer preferences.

9. Good Customer Reviews

• Long-term cooperation with customers, some lasting over 7 years.

10. Award Recognition

• Frequent recognition from Google and industry awards.

• ABOUT US
• About DLX ALLOY

• 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.

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• About Our factory

• 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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• Client Visits

• Building Stronger Partnerships

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• We support all kinds of testing:

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FAQ

Q1: What is Incoloy 800H?
A1: Incoloy 800H is a high-performance nickel-iron-chromium superalloy designed for high-temperature, high-strength applications, including in petrochemical, power generation, and chemical processing industries.

Q2: What is the temperature range for Incoloy 800H?
A2: Incoloy 800H is suitable for continuous service up to 925°C (1700°F) and can withstand short-term exposure up to 1150°C (2100°F).

Q3: What certifications does Incoloy 800H have?
A3: It is certified for ASME Section VIII Div.1, PED 2014/68/EU, and NACE MR-0175 for sour gas environments.

Q4: Is Incoloy 800H weldable?
A4: Yes, Incoloy 800H can be welded using TIG and laser welding techniques with the recommended filler metal.

Q5: What industries use Incoloy 800H?
A5: Incoloy 800H is widely used in power generation, petrochemical, chemical processing, and heat treatment applications.