Place of Origin
For more information, please visit heat exchanger tube uns n08825 price.
:
Shanghai
, China
Type
:
Nickel PipeApplication
:
petrochemical,oil,exchange
Grade
:
Nickle alloy
Ni (Min)
:
standard
Resistance (
μΩ
.m)
:
standard
Powder Or Not
:
Not Powder
Ultimate Strength (
≥
MPa)
:
552
Elongation (
≥
%)
:
30
Model Number
:
Incoloy 800/800H/800HT/825/925/926
Brand Name
:
MZ Steel
Product name
:
UNS N08825astm b163 Incoloy 825 Nickel alloy seamless pipe / tube
Surface
:
Bright, Dull, HL(Hairline)
standard
:
JIS,AISI,ASTM,GB,DIN,EN,
length
:
3-12m or as your request
outer diameter
:
6-1900mm or customized
thinkness
:
0.3-100mm or customized
Certificate
:
ISO9001:2008
Grade:Inconel 625,Inconel 600,Incoloy 825,Incoloy 800,Hsatelloy C-276,etc.
Execution standard:GB/T 25827-2010,GB/T 25828-2010,GB/T 25831-2010,GB/T 25932-2010,ASTM A751,ASTM A745/388,etc.
Basic properties: high temperature corrosion resistant alloy refers to a kind of metal materials with nickel, paste or cobalt as matrix, which can withstand complex and harsh mechanical stress under high temperature environment and has good surface stability.High temperature corrosion resistant alloys generally have high room temperature and high temperature strength, good oxidation and thermal corrosion resistance, excellent creep and fatigue resistance, and good structural stability.
Product name astm b163 Incoloy 825 UNS N08825 Nickel alloy seamless pipe / tube Shape Round,Forging,Ring,Coil,Flange,Disc,Foil,Spherical,Ribbon,Square,Bar,Pipe,Sheet Grade Duplex: 2205(UNS S31803/S32205),2507(UNS S32750),UNS S32760(Zeron 100),2304,904L Others: 253Ma,254SMo,654SMo,F50(UNS S32100)F60,F61,F65,1J22,N4,N6 etc Alloy : Alloy 20/28/31; Hastelloy: Hastelloy B/ -2/B-3/C22/C-4/S/ C276/C-2000/G-35/G-30/X/N/g; Hastelloy B / UNS N10001,Hastelloy B-2 / UNS N10665 /DIN W. Nr. 2.4617,Hastelloy C,Hastelloy C-4 / UNS N06455 / DIN W. Nr. 2.4610,Hastelloy C-22 / UNS N06022 / DIN W. Nr. 2.4602,Hastelloy C-276 /UNS N10276 / DIN W. Nr. 2.4819,Hastelloy X / UNS N06002 / DIN W. Nr. 2.4665
Haynes: Haynes 230/556/188; Inconel Series: Inconel 600/601/602CA/617/625/713/718/738/X-750,Carpenter 20; Inconel 718 / UNS N07718 / DIN W. Nr. 2.4668,Inconel 601 / UNS N06601 / DIN W. Nr. 2.4851,
The distinctively diverse qualities of Incoloy 825 set it apart in the universe of materials. Composed of Nickel, Iron, and Chromium, it’s created to resist corrosion.
Indeed, this super alloy excels in extreme environments. Significantly, its embedded Molybdenum bolsters the resilience to pitting and crevice deterioration.
Incoloy 825’s secret lies in its chemical makeup. Nickel dominates at 38-46%, followed by Iron at 22% minimum. Chromium, at 19.5-23.5%, brings corrosion resistance.
Molybdenum, 2.5-3.5%, improves pitting resistance. Copper, at 1.5-3%, fights sulfuric acid corrosion. These figures, of course, represent an ideal range. The exact percentages may vary slightly.
Incoloy 825, robust and reliable, withstands high temperatures. Its melting point falls between 2500-2550°F (1370-1400°C). This property, essential in many industries, allows the alloy to maintain its integrity under extreme heat.
Density also plays a key role in Incoloy 825’s performance. Its density is 8.14 grams per cubic centimeter (g/cm3). Consequently, the alloy’s substantial weight contributes to its durability and strength.
Incoloy 825’s thermal conductivity, another important feature, stands at 11.1 W/mK. This means heat moves quickly through the alloy, a desirable trait in high-temperature applications.
Tensile strength, a measure of resistance to breakage, is 85 ksi (585 MPa) for Incoloy 825. This high value signifies the alloy’s ability to withstand large amounts of force without breaking.
Incoloy 825’s yield strength is 32.5 ksi (224 MPa). This figure denotes the stress at which the alloy begins to deform plastically, or permanently.
Regarding hardness, Incoloy 825 registers a Brinell hardness of 150-200. This rating implies the alloy’s ability to resist indentation and wear.
In terms of elasticity, Incoloy 825 exhibits a modulus of elasticity of 28.3 x 10^3 ksi. This means the alloy has a high capacity to return to its original form after stress.
The immunity of Incoloy 825 to corrosion is genuinely exceptional. Its chromium content enables it to withstand oxidizing conditions, while its nickel component enhances resistance to reducing environments.
Its molybdenum and copper constituents bolster its strength against pitting, crevice degradation, and even against sulphuric and phosphoric acids. This makes Incoloy 825 an ideal choice for applications that require exposure to corrosive substances.
Incoloy 825’s metallurgical structure is austenitic. This means it has a face-centered cubic crystal structure, which contributes to its excellent mechanical properties and corrosion resistance.
The alloy’s austenitic structure, combined with its high nickel content, also allows it to maintain stability and strength at high temperatures. As a result, Incoloy 825 is favored for uses in rigorous circumstances, like those encountered in industries such as chemical, oil, and gas.
Criteria Description Alloy Name Incoloy 825 Chemical Composition Nickel (38-46%), Iron (≥22%)Chromium (19.5-23.5%)
Molybdenum (2.5-3.5%)
Copper (1.5-3%)
Melting Point 2500-2550°F (1370-1400°C) Density 8.14 g/cm3 Thermal Conductivity 11.1 W/mK Tensile Strength 85 ksi (585 MPa) Yield Strength 32.5 ksi (224 MPa) Hardness Brinell hardness of 150-200 Modulus of Elasticity 28.3 x 10^3 ksi Corrosion Resistance High (Due to Chromium, Molybdenum, and Copper content) Metallurgical Structure AusteniticA Detailed Table on Incoloy 825
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Incoloy 825, an alloy with 38-46% nickel, 19.5-23.5% chromium, and 2.5-3.5% molybdenum, owes its robustness to precise raw material selection. Copper and titanium, contributing 1.5-3% and .6-.2% respectively, enhance corrosion resistance.
Thus, meticulously chosen raw materials ensure Incoloy 825’s superior performance. Iron, the remainder, balances the composition, rendering versatility to the alloy.
This specific composition confers commendable resilience against sulphuric and phosphoric acids. So, industries value Incoloy 825 for its superb chemical resistance, high mechanical strength, and optimal weldability.
Melting and casting Incoloy 825 involves maintaining a temperature range of 2450-2630°F. These crucial steps mold the alloy into desired forms. After the alloy reaches the optimal melting point, it pours into molds, creating ingots or billets.
With precise temperature control, the alloy solidifies uniformly, ensuring a high-quality casting. This process assures Incoloy 825’s impressive structural integrity.
Consequently, the outcome is a robust alloy, proficient in combating environmental and industrial corrosive conditions.
Hot working of Incoloy 825 happens at temperatures between 1600-2150°F. The subsequent cold processing further augments the alloy’s pliability.
Processes like forging, rolling, and extrusion occur during hot working. These methods shape the alloy into various forms, such as sheets, plates, or bars.
Cold working, on the other hand, refines the microstructure, increasing Incoloy 825’s toughness. Thus, the dual working processes elevate the alloy’s durability, making it suitable for harsh environments.
Heat treatment is a pivotal process for Incoloy 825. Conducted at 1600-1750°F, it ensures superior mechanical properties. After heating, rapid cooling or quenching follows. This process improves the alloy’s hardness and strength.
Also, heat treatment relieves stresses induced during manufacturing. These comprehensive steps ensure Incoloy 825 maintains its sturdy structure, even under high-pressure situations.
Finally, surface treatment and finishing processes polish Incoloy 825’s appearance. Procedures like pickling, passivation, and electropolishing cleanse the alloy, removing any surface impurities. The processes amplify Incoloy 825’s immunity to corrosion, thereby extending its lifespan.
Moreover, the high-quality finish provides a visually appealing surface, making it desirable for applications where aesthetics are vital. Thus, Incoloy 825, with its superior surface finish, stands as a trusted choice in many industries.
Incoloy 825 can be a hot-rolled annealed & descaled finish. It is achieved by heating the material to a high temperature. The material undergoes cooling slowly to guarantee evenly annealed.
Dull finish (2D). This finish is produced by cold rolling Incoloy 825 material to a specific thickness. Then the annealing process is done to reduce any surface defects.
Bright annealed finish (BA). A highly reflective finish is produced by annealing the material in a controlled atmosphere.
Course bright annealed (CBA). It is a more textured finish, is more durable, and has a slightly coarser texture finish.
Cold rolling & bright annealing, also known as 2BA. This smooth and glossy finish is perfect for applications requiring a smooth, high-shine finish.
Whether you require a low-reflective finish, a highly reflective finish, or a textured finish, there is a finish available to suit your requirement.
Here is the comprehensive overview of Incoloy 825, a multifaceted composite of nickel, iron, and chromium. With remarkable corrosion resistance, it’s extensively used in multiple industries.
This blog aims to provide engineers and material scientists with a comprehensive understanding of Incoloy 825.
Incoloy 825, an alloy, is known for exceptional resistance to corrosion. That trait is ideal in acidic, sulfuric, or phosphoric environments. Prior to welding, a clean surface is critical. Oxide layers, oil, grease, or dirt can hinder the process.
Preparation involves cleaning with solvents like acetone. A wire brush can remove stubborn surface contaminants. Preheating isn’t necessary due to the alloy’s low carbon content.
Room temperature, ideally between 21-25 degrees Celsius, is the best. Uniform heating prevents stress and distortion.
TIG welding is highly suitable for Incoloy 825. The process gives high precision and clean welds. In TIG, a tungsten electrode delivers the current to the welding arc. Argon, the shielding gas, prevents contamination.
Welding parameters such as current and speed should be monitored. A current range of 50-200 amperes is ideal, depending on thickness. Too fast or too slow travel speed affects weld quality.
MIG welding is another good method for Incoloy 825. Here, a wire electrode and shielding gas are utilized. Argon, with 2-5% oxygen, is typically used.
Wire feed speed can range from 3-15 meters per minute. The voltage varies between 16-28 volts, depending on thickness. The proper technique reduces spatter and ensures strong, clean welds.
SMAW is a common welding process for Incoloy 825. An electrode covered in flux creates the weld. Current settings are crucial. Around 70-120 amperes is generally recommended. The electrode angle, typically 75-90 degrees, impacts weld penetration. Flux removal post-welding is essential to prevent corrosion.
After welding Incoloy 825, certain steps ensure weld integrity. Cooling should occur naturally in still air. Rapid cooling techniques can induce thermal stresses. A thorough visual inspection for cracks, porosity, or inclusions is important.
Non-destructive testing methods like ultrasonic or radiographic testing provide further assurance. Stress relieving at 600-650 degrees Celsius for one hour per inch of thickness can be beneficial. It can reduce residual stresses, enhancing service life.
Proper technique, however, can mitigate this risk. Preheating to 150-200 degrees Celsius reduces temperature fluctuations. A slow cool-down period post-welding aids in preventing cracks. Choosing the correct filler materials also plays a key role.
Solution annealing, applied after welding, helps reduce this problem. Heat treatment at 980 degrees Celsius, followed by a water quench, restores the alloy’s corrosion resistance.
Table on Incoloy 825 Welding
You’re handling Incoloy 825, a nickel-iron-chromium alloy. During hot forming, elevate the temperature between 1600-2150°F. Remember, uniform heating prevents distortion. On reaching 1600°F, Incoloy 825 becomes pliable.
You can manipulate its form without causing cracks. At a peak temperature of 2150°F, the alloy can achieve a high degree of malleability. Yet, exceeding this limit might lead to grain growth. This compromises the metal’s integrity.
Therefore, manage temperature judiciously. Next, allow the formed part to cool. Air cooling suffices for most applications. This procedure retains the metal’s beneficial attributes, such as corrosion resistance.
Now let’s switch gears to cold forming. Incoloy 825 can undergo cold forming due to its ductile nature. You will experience increased strength and hardness with each deformation. However, the alloy’s workability reduces correspondingly.
Employing standard cold-forming techniques is practical. Yet, regular intermediate annealing at 1600-1700°F prevents work hardening. Therefore, ensure balance of the alloy’s hardening with its workability.
When machining Incoloy 825, tool selection plays a crucial role. High-speed steel tools are suitable. Use them when the machining speeds are low. However, for high-speed operations, prefer carbide-tipped tools.
The latter offers enhanced performance, reducing tool wear. Typical tool geometry includes a 10° to 20° rake angle. Also, a large relief angle facilitates chip flow. Remember, proper tooling prolongs the life of the machine and ensures quality output.
The machining process necessitates correct speed and feed rates. For Incoloy 825, use a surface cutting speed of 50-60 feet per minute.
The feed rate should be 0.007-0.015 inches per revolution. Adhering to these parameters provides optimal chip formation. Consequently, it reduces tool wear and heat generation.
During machining, keep the tool cool. Coolants assist in maintaining tool life and surface finish. For Incoloy 825, use water-based coolants. They provide excellent cooling and lubrication. Coolants also help in chip removal, a critical aspect of machining operations.
Post-forming and machining treatments on Incoloy 825 are essential. Following hot or cold forming, anneal the alloy. The process involves heating the alloy to 1600-1700°F. Then, hold for a period, followed by cooling at a specified rate.
Annealing softens the metal. It improves ductility and reduces internal stresses. Therefore, it makes the alloy ready for subsequent processing. For post-machining, clean the parts thoroughly. This removes coolant residue and machining debris.
Inspect the parts for defects. Any imperfections can lead to part failure during service. Hence, quality control is paramount.
Incoloy 825 is a robust alloy. Ultrasonic testing helps assess its integrity. Using high-frequency sound waves, defects within the alloy get detected. Sound waves can penetrate the surface, offering an inside look at the material.
For Incoloy 825, a frequency between 0.5 to 10 MHz often applies. Coupling gel aids the transmission of sound waves. Results come back in milliseconds. Interpretation by a skilled technician is crucial.
The presence of cracks, voids, or inclusions in the alloy becomes evident. The advantage lies in the testing’s non-intrusive nature.
Magnetic Particle Inspection (MPI) is another technique. It reveals surface and near-surface defects in Incoloy 825. The alloy becomes magnetized under a magnetic field. Iron particles then apply to the surface.
Defects disrupt the magnetic field, attracting iron particles. The aggregation of particles indicates a defect. This process is swift and covers large surface areas.
Moreover, the alloy’s integrity stays intact. MPI is particularly effective for Incoloy 825 due to its ferromagnetic properties.
Dye Penetrant Inspection (DPI) helps find surface-breaking defects in Incoloy 825. A dye penetrates any existing defects, enhancing their visibility. The dye is often red or fluorescent for easy detection.
DPI is a cost-effective and fast method. Its effectiveness comes from its simplicity. Any surface-breaking defects in Incoloy 825 become visible to the naked eye.
Tensile testing is crucial for Incoloy 825. It measures the alloy’s resistance to breaking under tension. The yield strength of Incoloy 825 is approximately 325 MPa. The tensile strength can reach up to 770 MPa. An elongation of 45% indicates good ductility.
An impact test assesses the toughness of Incoloy 825. The alloy gets subjected to sudden loads. The energy absorbed during fracture gets measured. For Incoloy 825, the Charpy impact test is common.
At room temperature, the alloy can absorb energy up to 100 Joules. The alloy exhibits excellent toughness even in low-temperature conditions.
Hardness testing evaluates the alloy’s resistance to deformation. For Incoloy 825, the Brinell hardness test is standard. The alloy has a Brinell hardness of around 150-200 HB. The impressive hardness of the alloy aligns with its superior resistance to wear.
Evaluations of corrosion reveal Incoloy 825’s resilience in diverse corrosive circumstances, demonstrating its superior defense against widespread and localized degradation.
Incoloy 825 shows exceptional performance in reducing and oxidizing conditions.
It has excellent resistance to sulfuric and phosphoric acids. Its resistance to pitting and crevice corrosion is also impressive. In chloride environments, the alloy’s performance is commendable. It can withstand stress-induced corrosion cracking in numerous circumstances.
Corrosion rates get measured in mils per year (may). For Incoloy 825, the corrosion rate in sulfuric acid at 80°C is 0.1 mph.
This indicates the alloy’s superior corrosion resistance. Furthermore, Incoloy 825 shows a commendable defense against grain-boundary deterioration. The alloy’s nickel content of approximately 38-46% contributes to this. Chromium, molybdenum, and copper also enhance its corrosion resistance.
Incoloy 825 showcases impressive corrosion resistance. Metals often succumb to rusting, yet Incoloy 825 stands firm. Its nickel content, reaching 38-46%, fortifies the alloy against rust.
Moreover, the alloy carries 19.5-23.5% chromium, enhancing its defense against oxidation. In essence, Incoloy 825 shields critical industrial components from corrosive elements, thereby prolonging their lifespan.
Incoloy 825 possesses a high tensile strength. Values can reach 550 MPa, a testament to its robust nature. Thus, Incoloy 825 effectively resists breakage, deformation, and wear, even under considerable pressure. Consequently, industries that demand structural integrity often prefer this alloy.
Withstanding varying temperatures marks another advantage of Incoloy 825. Temperature resistance spans from cryogenic lows to highs of 540°C (1004°F). Such a range ensures the alloy’s performance in diverse industrial settings, regardless of the thermal conditions.
Despite its strength, Incoloy 825 is easy to fabricate. Thanks to its favorable mechanical properties, the alloy supports numerous manufacturing processes, including welding, forging, and machining. Hence, its adaptability makes it a favored choice for numerous industrial applications.
Unlike many materials, Incoloy 825 resists pitting and crevice corrosion. Exposure to chloride solutions often results in these forms of corrosion. However, due to its unique chemical composition, Incoloy 825 remains unaffected, ensuring durability in harsh environments.
Incoloy 825 exhibits resistance to radiation. In the nuclear industry, where radiation is prevalent, Incoloy 825 becomes invaluable. By withstanding radioactive conditions, the alloy ensures the safe operation of nuclear facilities.
With its profound resilience against corrosion and oxidation, even under severe conditions, Incoloy 825 is instrumental in the functioning of oil and gas industry activities.
In a typical offshore drilling rig, around 100,000 tons of this metal might be used. Incoloy 825’s durability can withstand temperatures up to 550 degrees Celsius, ideal for high-pressure environments.
This hardy material also performs well in sulfide and hydrogen sulfide situations, common in oil fields. For example, a 5% concentration of sulfur compounds, which often cause corrosion, presents no problem for Incoloy 825.
In the chemical processing industry, Incoloy 825’s resilience under challenging conditions is a standout. Given its ability to resist acids and alkalis, this alloy frequently finds use in equipment handling corrosive chemicals.
Such equipment might, for instance, operate in environments with a pH range from 0 (very acidic) to 14 (very alkaline). The alloy’s resistance to pitting and crevice corrosion, even at high temperatures up to 550 degrees Celsius, makes it a top choice for chemical processing vessels and heat exchangers.
In marine environments, Incoloy 825’s corrosion-resistant properties prove their worth. This alloy is resilient against the corrosive effects of seawater, which is typically 3.5% salt. Sea structures and vessels, like offshore platforms and ship hulls, often rely on this material.
Incoloy 825 performs admirably, resisting the corrosive impact of marine atmospheres, high chloride levels, and even the rapid temperature changes that occur in marine environments.
The material’s durability extends the lifespan of marine structures, a vital aspect of maritime industries.
In nuclear power plants, Incoloy 825’s robustness and resistance to nuclear radiation make it a valuable asset. This material’s properties remain stable even when subjected to high neutron flux, a common occurrence in nuclear reactors.
A single reactor might contain up to 75,000 fuel rods made from this alloy. The alloy’s superior resistance to stress corrosion cracking, even in temperatures of around 315 degrees Celsius, provides an extra layer of safety in these critical environments.
Incoloy 825’s resistance to corrosion and high-temperature performance make it suitable for pollution control equipment. Scrubbers and flue-gas desulfurization units operate at temperatures around 370 degrees Celsius, often utilize this alloy.
The alloy’s ability to withstand harsh acidic conditions, common in these systems, is essential. For instance, it can tolerate sulfuric acid concentrations of up to 40%, a critical parameter in pollution control operations. The use of Incoloy 825 thus enables the effective and safe operation of such equipment.
Proper storage of Incoloy 825 enhances its lifespan. Maintain storage temperatures between 40°F to 100°F. Relative humidity should be less than 50%.
Keep in dry areas, away from harmful chemicals. Optimal storage conditions prevent corrosion, extending the material’s usage.
Safety comes first when handling Incoloy 825. Always use heavy-duty gloves to protect your hands from cuts or abrasions. Wear safety goggles to protect your eyes from metal fragments.
A helmet shields the head from potential impact. High-visibility clothing enhances safety in low-light conditions.
Recycling Incoloy 825 contributes to environmental sustainability. About 70% of spent Incoloy 825 is recyclable. Ensure proper disposal of non-recyclable parts.
Follow local guidelines for the disposal of waste materials. Recycling reduces the carbon footprint of production activities.
Manufacturing Incoloy 825 has an environmental impact. The energy-intensive process emits about 10 tons of CO2 per ton of Incoloy produced.
Yet, a 70% recycling rate offsets the impact. Sustainable practices in Incoloy production help mitigate these effects. Strive to use recycled materials to reduce the carbon footprint.
Mastering the nuances of Incoloy 825, from chemical composition to processing techniques, offer a competitive edge in today’s industries.
Remember, every detail counts when working with this resilient alloy. Take advantage of the insights provided here to maximize the potential of Incoloy 825 in your applications. For more information, TuolianMetal is a trusted source for your industry needs.
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