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The Incoloy 800H round bar is a nickel-iron-chromium superalloy designed for high-temperature stability, oxidation resistance, and long-term creep resistance. As an enhanced version of Incoloy 800, it contains higher carbon (0.05–0.10%) for improved strength at elevated temperatures (up to 815°C / 1500°F).
Application field
High temperature components, such as turbine blades, guide vanes, turbine disks, high pressure compressor disks, machine manufacturing and combustion chambers used in the manufacture of aviation, naval and industrial gas turbines.
Item | 800 | 800H | 800HT | 825 | 925 |
C | ≤0.1 | 0.05-0.1 | 0.06-0.1 | ≤0.05 | ≤0.03 |
Mn | ≤1.5 | ≤1.5 | ≤1.5 | ≤1 | ≤1 |
Fe | rest | rest | rest | rest | rest |
P | -- | -- | -- | ≤0.02 | ≤0.03 |
S | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.03 | ≤0.03 |
Si | ≤1 | ≤1 | ≤1 | ≤0.5 | ≤0.5 |
Cu | ≤0.75 | ≤0.75 | ≤0.75 | 1.5-3 | 1.5-3 |
Ni | 30-35 | 30-35 | 30-35 | 38-46 | 42-46 |
Al | 0.15-0.6 | 0.15-0.6 | 0.15-0.6 | 0.2-1 | 0.15-0.5 |
Ti | 0.15-0.6 | 0.15-0.6 | 0.15-0.6 | 0.6-1.2 | 1.9-2.4 |
Cr | 19-23 | 19-23 | 19-23 | 19.5-23.5 | 19.5-23.5 |
Mo | -- | -- | -- | 2.5-3.5 | 2.5-3.5 |
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Key Properties of Incoloy 800H Round Bar
1. High-Temperature Performance
Excellent creep rupture strength at 700–900°C (1292–1652°F).
Resists oxidation, carburization, and nitriding in furnace environments.
2. Corrosion Resistance
Chromium (19–23%) provides resistance to sulfur compounds, steam, and weak acids.
Stable in reducing and oxidizing atmospheres.
3. Fabrication & Weldability
Can be machined, welded (TIG, MIG, SMAW), and forged with standard techniques.
Post-weld heat treatment (PWHT) is recommended for critical applications.
4. Mechanical Strength
Tensile strength: ~500 MPa (73 ksi) at room temperature.
Good ductility even after prolonged high-temperature exposure.
Applications of Incoloy 800H Round Bar
1. Industrial Furnace Components
Radiant tubes, muffles, and burner nozzles (resists thermal fatigue).
Heat treatment fixtures (stable in carburizing/nitriding atmospheres).
2. Petrochemical & Refining Equipment
Steam methane reformer (SMR) tubes (handles high-pressure hydrogen).
Catalyst support grids & reactor internals (resists sulfidation).
3. Power Generation Systems
Boiler tubes, superheater components (long-term creep resistance).
Gas turbine exhaust systems (thermal cycling endurance).
4. Nuclear Reactor Components
Heat exchanger tubing & support structures (radiation-resistant).
User Needs & Why Choose Incoloy 800H?
Industries prefer Incoloy 800H round bars because they offer:
✔ Cost-Effective High-Temperature Solution – More affordable than Inconel 600/601 for moderate-temperature applications.
✔ Long Service Life – Resists scaling, embrittlement, and thermal fatigue in cyclic heating.
✔ Ease of Fabrication – Can be machined, welded, and formed without specialized equipment.
✔ Compliance with Standards – Meets ASTM B408, ASME SB408, and DIN 2.4958 for industrial use.
Conclusion
The Incoloy 800H round bar is a high-performance, cost-efficient alloy for furnace, petrochemical, and power generation applications requiring thermal stability up to 815°C. Its enhanced creep resistance, weldability, and corrosion resistance make it a top choice for engineers seeking durable materials in aggressive environments.
Q: What is the brand name of this product?
A: The brand name of this product is DZX.
Q: What is the model number of this product?
A: The model number of this product is Incoloy Alloy.
Q: Where is this product made?
A: This product is made in China, JiangSu.
Q: Can this product withstand high temperatures?
A: Yes, this product is known for its high-temperature strength and resistance to oxidation and corrosion.
Q: Is this product suitable for use in harsh environments?
A: Yes, this product has excellent mechanical properties and can withstand harsh environments.
E-mail: dzx@dlx-alloy.com
Mobile: +8619906119641
Tel: 0086-19906119641
WhatsApp: +86-19906119641
Add: NO.32 West Taihu Road, Xinbei District, Changzhou, Jiangsu
