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Inconel 625 Flat Sheet/Plate Ideal for Aerospace, Marine & Chemical Processing
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xProduct Details
| Products | Nickel Alloy Sheet & Plate | Grade | Inconel 625 |
|---|---|---|---|
| Thickness | 0.5 - 30.0mm | Standard Size | 1000*2000mm 1219*2438mm |
| Standard | ASTM EN | Service | Cutting |
| Loading Port | Shanghai Port | Surface | 2B NO.1 |
Product Description
Inconel 625 Flat Sheet/Plate Ideal for Aerospace, Marine & Chemical Processing
Products Specification
| Products Name | Inconel 625 Nickel Alloy Sheet Plate |
| Thickness | Cold rolled: 0.5 - 3.0mm Hot rolled 4.0 - 30.0mm |
| Standard Size | 1000*2000mm 1219*2438mm 1219*3048mm 1500*6000mm |
| Surface | 2B NO.1 |
| MOQ | 50 kgs |
| Service | Cutting, Surface Finishing |
| Packing | Waterproof paper and wooden pallets |
| Loading Port | Shanghai Port |
| Price term | FOB CFR CIF EXW |
| Payment term | 30% TT in advance , 70% TT balance against copy of B/L |
| Main Grade | Hastelloy C22 C4 X C276 G35 |
| Monel 400 K500 | |
| Incoloy 800 800H 800HT 825 925 | |
| Inconel 600 601 617 625 716 718 | |
| Stainless Steel Grade | 201 202 301 304L 309S 310S 316L 316Ti 317L 321 347 409L 410 410S 420J1 420J2 430 431 436L 439 440A/B/C 441 443 444 2205 2507 904L 254SMO 253MA |
Inconel 625 Flat Sheet/Plate Ideal for Aerospace, Marine & Chemical Processing
In the realm of high-performance materials, Inconel 625 flat sheets and plates stand out as a premier choice for industries operating in extreme environments. As a non-magnetic, nickel-based superalloy, Inconel 625 (UNS N06625, Werkstoff Nr. 2.4856) is engineered to deliver exceptional strength, superior corrosion resistance, and remarkable thermal stability across a wide temperature range—from cryogenic conditions to as high as 1093°C (2000°F) . Its unique composition, featuring high nickel content paired with molybdenum and niobium for solid-solution strengthening, eliminates the need for precipitation-hardening treatments while ensuring unparalleled durability in the harshest operating conditions . Whether for aerospace engine components, marine offshore structures, or chemical processing equipment, Inconel 625 flat sheets/plates consistently meet the rigorous demands of critical applications, making them a trusted material among engineers and manufacturers worldwide.
Key Chemical Composition of Inconel 625 Flat Sheet/Plate
The exceptional performance of Inconel 625 stems from its precisely balanced chemical composition. At its core, a minimum of 58% nickel provides a stable austenitic matrix, while chromium (20-23%) forms a dense Cr₂O₃ oxide film that delivers superior oxidation resistance . Molybdenum (8-10%) enhances resistance to pitting and crevice corrosion, particularly in chloride-rich environments, and niobium (3.15-4.15%, often paired with tantalum) works synergistically with molybdenum to strengthen the alloy through solid-solution hardening . Strict limits on impurities such as carbon, phosphorus, and sulfur ensure optimal weldability and prevent intergranular corrosion. The complete chemical composition is detailed in the table below:
|
Element
|
Content Range (%)
|
Key Function
|
|---|---|---|
|
Nickel (Ni)
|
≥58.0
|
Forms stable austenitic matrix; ensures cryogenic toughness
|
|
Chromium (Cr)
|
20.0-23.0
|
Creates protective oxide film; resists oxidation and scaling
|
|
Molybdenum (Mo)
|
8.0-10.0
|
Enhances pitting/crevice corrosion resistance; boosts strength
|
|
Niobium (Nb) + Tantalum (Ta)
|
3.15-4.15
|
Solid-solution strengthening; improves high-temperature creep resistance
|
|
Iron (Fe)
|
≤5.0
|
Minor alloying element; aids in processing
|
|
Cobalt (Co)
|
≤1.0
|
Impurity control; maintains alloy stability
|
|
Carbon (C)
|
≤0.10
|
Prevents carbide precipitation; ensures weldability
|
|
Manganese (Mn) / Silicon (Si)
|
≤0.50 each
|
Deoxidizers; support manufacturing processes
|
|
Phosphorus (P) / Sulfur (S)
|
≤0.015 each
|
Impurity limits; avoid intergranular corrosion and brittleness
|
Critical Physical & Mechanical Properties
Inconel 625 flat sheets and plates exhibit a unique combination of physical and mechanical properties that make them indispensable for extreme applications. With a density of 8.44 g/cm³ and a melting range of 1290-1350°C, the alloy maintains structural integrity even in high-temperature environments . Its thermal expansion coefficient (13.1-13.4×10⁻⁶/°C from room temperature to 1000°C) is stable, reducing stress accumulation caused by temperature fluctuations—a key advantage for aerospace and energy applications . Mechanically, it boasts impressive tensile strength (≥760 MPa at room temperature), yield strength (≥345 MPa), and elongation (≥30%), ensuring durability under high mechanical stress . Even at elevated temperatures (e.g., 600°C), it retains tensile strength above 550 MPa and yield strength above 345 MPa, outperforming many other nickel-based alloys . The table below summarizes core properties:
|
Property
|
Value
|
Test Condition
|
|---|---|---|
|
Density
|
8.44 g/cm³
|
Room temperature
|
|
Melting Range
|
1290-1350°C (2354-2462°F)
|
—
|
|
Thermal Expansion Coefficient
|
13.1-13.4×10⁻⁶/°C
|
20-1000°C
|
|
Thermal Conductivity
|
9.8 W/(m·K)
|
Room temperature
|
|
Tensile Strength
|
≥760 MPa (110 ksi)
|
Room temperature, annealed
|
|
Yield Strength (0.2% offset)
|
≥345 MPa (50 ksi)
|
Room temperature, annealed
|
|
Elongation
|
≥30%
|
Room temperature, annealed
|
|
Brinell Hardness
|
≤220 HB
|
Room temperature
|
|
Tensile Strength (Retained)
|
≥550 MPa
|
600°C (1112°F)
|
|
Oxidation Resistance
|
≤0.025 mm/year
|
1000°C (1832°F)
|
Unmatched Corrosion Resistance
One of Inconel 625’s most defining features is its exceptional corrosion resistance across diverse environments. It excels in both oxidizing and reducing media, resisting attack from seawater, salt spray, chloride solutions, nitric acid, sulfuric acid, phosphoric acid, and alkaline chemicals . Notably, it is nearly immune to chloride-induced stress corrosion cracking (SCC)—a common failure mode for many alloys in marine and chemical settings . In seawater environments, testing has shown that Inconel 625 experiences pitting depths of less than 0.005 mm every 6000 hours, making it ideal for long-term marine applications . It also resists intergranular corrosion, crevice corrosion, and impingement corrosion, even in high-velocity or turbulent fluid systems . Certified to NACE MR0175 (Level VII for acidic environments), Inconel 625 meets the strictest corrosion standards for oil and gas, chemical, and marine industries .
Industry-Specific Applications
Inconel 625 flat sheets and plates are tailored to meet the unique needs of three core industries: aerospace, marine, and chemical processing. Its versatility also extends to energy generation (nuclear and fossil fuel) an systems, but its performance in the following sectors is particularly noteworthy:
Aerospace & Aviation
In the aerospace industry, where reliability in extreme temperatures and high stress is non-negotiable, Inconel 625 is a staple material. It is widely used in jet engine components such as combustion chambers, turbine shroud rings, thrust reversers, and exhaust systems—parts that must withstand temperatures up to 1093°C and resist oxidation . Its high fatigue strength and weldability make it suitable for fabricating complex structures, while its cryogenic toughness ensures performance in high-altitude environments . Additionally, additive manufacturing (AM) of Inconel 625 (via directed energy deposition, DED) has expanded its use in aerospace, enabling the production of lightweight, complex parts with reduced material waste .
Marine & Offshore Engineering
Marine environments pose severe corrosion challenges due to saltwater, salt spray, and fluctuating temperatures—conditions where Inconel 625 thrives. It is used in offshore platforms, seawater desalination equipment,pipelines (subsea pipelines), ship hull components, and submarine systems . Its resistance to chloride SCC and pitting ensures long-term durability, reducing maintenance costs and minimizing downtime for critical marine infrastructure .
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