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Inconel 725 plate, UNS N07725 sheet, age-hardened nickel alloy plate, high strength 725 plate, NACE MR0175 alloy plate, marine sour gas nickel sheet
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Nickel Alloy Inconel 725 Plate

Ultra-high-strength Inconel 725 plate (UNS N07725) combining the legendary corrosion resistance of Alloy 625 with twice the yield strength through precipitation hardening. Double Yield Strength of Alloy 625: Age-hardening technology achieves superior mechanical strength and hardness without sacrificing impact toughness. Exceptional Sour Gas (H₂S) Resistance: Complies with NACE MR0175/ISO 15156 standards for harsh deepwater petroleum and natural gas extraction. Outstanding Pitting & Crevice Protection: High molybdenum, chromium, and nickel matrix delivers extreme immunity to local pitting in chloride-rich sea environments. Precision Heavy-Section Capability: Excellent resistance to stress-corrosion cracking (SCC) in heavy structural marine components and industrial valves.
Nickel Alloy Inconel 725 Plate
Nickel Alloy Inconel 725 Plate
Nickel Alloy Inconel 725 Plate

MORE DETAILS ABOUT Nickel Alloy Inconel 725 Plate

100% Non-Destructive Testing & Complete Material Certification




  • Comprehensive UT Flaw Detection: Every thick plate undergoes 100% Ultrasonic Testing (UT) to ensure zero internal voids or inclusions.

  • Chemical Verification via PMI: Every shipment is double-verified with Positive Material Identification (PMI) prior to packing.


  • 3.1 Mill Test Certificate Supplied: Complete heat traceability with EN 10204 3.1 certs specifying aging cycle parameters and test values.


  • Global Inspection Acceptance: Fully welcoming third-party inspections by DNV-GL, ABS, Lloyd's Register, SGS, or BV.


  • Product Name Inconel 725 Plate, Alloy 725 Sheet, UNS N07725 Flat Bar
    Equivalent Grade Inconel Alloy 725, UNS N07725, Inconel 725
    Standard ASTM B805, NACE MR0175 / ISO 15156, ASME Specs
    Process Hot Rolled (HR), Cold Rolled (CR), Solution Annealed & Age Hardened (Precipitation Treated)
    Sizes Thickness: 1.0 - 60mm; Width: 1000 - 2200mm; Length: 2000 - 6000mm (Custom Cut)
    Surface Treatment No.1, 2B, Sandblasted, Polished, Pickled / Descaled
    Fabricating Waterjet Cutting, Heavy CNC Machining, Beveling, Custom Plasma Cutting
    Application Sour Gas Deepwater Wellhead Components, Marine Fasteners, Valve Stems, H2S Hangers

    GENERAL INFO ABOUT EACH Nickel Alloy Plate GRADE

    Inconel 725 (UNS N07725) is specifically developed to meet demanding corrosion and load-bearing requirements in sour gas and subsea oil recovery applications. Through a double aging heat treatment (titanium, aluminum, and niobium precipitation), the alloy exhibits exceptional yield strength while maintaining the high pitting and crevice corrosion resistance of Alloy 625. Inconel 725 plates provide robust performance in high-chloride, acidic, and high-pressure marine environments.

    Single Plate Of Rolling Specification
    Thickness/Width 1200 1500 1800 2000 2200
    1.0-3mm - - -
    3-10mm -
    10-25mm
    25-45mm
    45-60mm special special special special special

    MORE DETAILS ABOUT EACH Nickel Alloy Plate GRADE

    • Welding For NICKEL ALLOY INCONEL 600 PLATE
    • Hot Forming For NICKEL ALLOY INCONEL 625 PLATE
    • Cold Forming For NICKEL ALLOY INCONEL 718 PLATE

    Inconel 600:

     

    Inconel 600 can be easily welded using conventional welding methods. The recommended welding materials for joining alloy 600 are Inconel welding electrode 182 for shielded metal-arc welding, Inconel filler metal 82 for gas tungsten-arc and gas metal-arc welding, and a combination of Inconel filler metal 82 and Incoflux 4 submerged arc flux for the submerged-arc process.

    Inconel 625:

     

    Inconel 625 was especially developed to retain high strength at elevated temperature, it resists deformation at hot-working temperatures. If hot forming of this alloy is required, powerful equipment is necessary. When Alloy 625 is hot-formed, it should be heated in a furnace whose temperature is held at (but not above) 2150°F. To guard against duplex grain structure, the work should be given uniform reductions. Final minimum reductions of 15 to 20% for open-die work are recommended.

    Inconel 718:

     

    Inconel 718 can be cold-formed by standard procedures used for steel and stainless steel. 

    CHEMICAL PROPERTIES

    Material Ni Cr Mo Nb Ti Al Fe C Mn Si
    N07725 55.0-59.0 19.0-22.5 7.0-9.5 2.75-4.0 1.0-1.7 0.35 max Bal (≥12.0) 0.03 max 0.35 max 0.20 max

    MECHANICAL PROPERTIES

    Material Tensile strength Yield strength 0.2 Elongation Hardness HRC
    N07725 (Aged) ≥ 1240 N/mm² (180 ksi) ≥ 827 N/mm² (120 ksi) ≥ 20% 36 - 44 HRC

    MORE DETAILS ABOUT EACH Nickel Alloy Plate PROCESS

    • Hot Rolled
    • Cold Rolled
    • Hot Roll Process

    Hot rolling is a metalworking process. Such as steel ingots or billets are difficult to deform and process at room temperature, they are generally heated to 1100 to 1250° for rolling, this rolling process is called hot rolling. Most steel materials are rolled by hot rolling, the steel delivered in the hot-rolled state has a certain degree of corrosion resistance due to the high temperature, so it can bestored in the open air. In addition, hot rolling is that it can destroy the casting structure of the ingot, refine the grain of the steel, eliminate structural defects, make the steel structure dense,  and improve the hardness of the hot rolled steel.

    Cold rolling refers to a rolling process that uses the pressure of rolls to squeeze steel to change the shape of the steel at room temperature. The advantafe of cold rolling is fast forming speed, high output, the coating is not damaged, and it can be made into a variety of cross-sectional forms to meet the needs of the use conditions. In addition, cold rolling can cause large plastic deformation of the steel, thereby increasing the yield point of the steel. Which is Widely used in home appliances and other industries.

    MORE DETAILS ABOUT EACH Nickel Alloy Plate SURFACE

    • NO.1
    • 2D
    • BA
    NO.1 surface treated by heat treatment and pickling after hot rolling. The  appearance is silver white, matt and bright. This surface is suitable for industries that require heat resistance and corrosion resistance, and the surface brightness is not important. Common applications include industrial tank and chemical industrial plants etc..
    2D surface treated by heat treatment and pickling after cold rolling. The appearance is silver white, smoother but of matt grain. Common applications include petrochemical production equipment, automotive components, building materials and water pipes etc..
    BA surface is also produced by cold rolling and de-scaling. It has excellent surface gloss, high reflectivity. In addition, The very smooth surface also makes this surface highly suitable for further finishing processes such as mirror polishing and chrome plating. Common applications include catering equipment etc..

    FREQUENTLY ASKED QUESTIONS

    • What Are The Cost Considerations For Hastelloy C276 Plates?
    • What Industries Benefit Most From Using Inconel 625 Plates?
    • How Does The Precipitation Hardening Process Affect Inconel 718 Plates?

    What Are The Cost Considerations For Hastelloy C276 Plates?


    Answer:


    The cost of Hastelloy C276 plates can be higher than other materials due to their specialized composition and advanced properties. Factors influencing cost include plate thickness, dimensions, and market demand. While the initial investment may be significant, the long-term benefits of using HASTELLOY C276, such as reduced maintenance, extended service life, and resistance to costly corrosion damage, often justify the expense. For industries where failure is not an option, the reliability and durability of HASTELLOY C276 provide valuable assurance of performance.


    What Industries Benefit Most From Using Inconel 625 Plates?


    Answer:


    Industries that benefit significantly from Inconel 625 plates include: Aerospace, Oil and Gas, Marine Engineering, Chemical Processing, Power Generation.


    How Does The Precipitation Hardening Process Affect Inconel 718 Plates?


    Answer:


    The precipitation hardening process significantly enhances the mechanical properties of Inconel 718 plates by forming gamma prime (γ') and gamma double prime (γ'') phases, which improve tensile strength and creep resistance. This aging treatment allows Inconel 718 to maintain stability at high temperatures, making it ideal for applications requiring superior strength and deformation resistance under extreme mechanical loads. This property is crucial for industries like aerospace and power generation, where reliable performance is mandatory.


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