Incoloy 825 bar represents a premium nickel-iron-chromium alloy specifically engineered to deliver exceptional performance in the most demanding corrosive environments. With its unique composition featuring molybdenum and copper additions, this material has become the gold standard for applications requiring superior resistance to both oxidizing and reducing acids, as well as chloride-induced stress corrosion cracking.
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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Material Composition and Key Properties:
The alloy's chemical composition (Ni 38-46%, Cr 19.5-23.5%, Fe ≥22%, Mo 2.5-3.5%, Cu 1.5-3.0%) provides:
Outstanding resistance to sulfuric and phosphoric acids
Excellent performance in seawater and brine solutions
Superior resistance to stress corrosion cracking
Good mechanical strength up to 540°C (1000°F)
Excellent weldability and fabricability
Primary Applications:
Chemical Processing Industry:
Reactor vessels and columns handling aggressive acids
Heat exchangers for corrosive media
Piping systems for acid transport
Mixing and storage equipment for chemical production
Marine and Offshore Applications:
Seawater handling systems (pumps, valves, piping)
Offshore platform components
Desalination plant equipment
Marine exhaust systems
Oil and Gas Sector:
Downhole components in sour gas wells
Process equipment for refining operations
Flue gas desulfurization systems
Pipeline components in corrosive environments
User Benefits and Selection Criteria:
Industrial users select Incoloy 825 bars for:
Extended service life in corrosive environments (3-5 times longer than standard stainless steels)
Reduced maintenance costs due to superior corrosion resistance
Proven performance in critical applications
Cost-effectiveness compared to higher-nickel alloys
Availability in various sizes and forms
Technical Specifications:
ASTM B425/ASME SB425 compliant
Typical tensile strength: 586 MPa (85 ksi) min
Yield strength: 241 MPa (35 ksi) min
Elongation: 30% min
Conclusion:
Incoloy 825 bar stock provides an optimal balance of corrosion resistance, mechanical properties, and cost-effectiveness for demanding chemical and marine applications. Its proven track record in aggressive environments makes it the material of choice for engineers specifying components that must withstand prolonged exposure to corrosive media while maintaining structural integrity.
Availability and Customization:
Available in round, square, and hexagonal bar forms
Custom sizes and processing available
Mill test certificates provided with all material shipments
FAQ:
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.
