ASTM B423 Incoloy 825 Seamless Pipes

ASTM B423 Incoloy 825 Seamless Pipes are a nickel-iron-chromium-molybdenum-copper alloy used for various applications in industries such as chemical processing, oil and gas, and power generation. This alloy offers excellent corrosion and heat resistance, making it ideal for use in extremely aggressive environments with high temperature and pressure requirements. ASTM B423 Incoloy 825 Seamless Pipes are made of an austenitic nickel-iron-chromium alloy with excellent weldability and fabricability characteristics. It comprises 38 to 46% nickel, 19 to 23% chromium, 2.5 to 3.5% iron, and small amounts of other elements like copper, molybdenum, and titanium. The seamless pipes are manufactured using a hot extrusion process that guarantees uniformity in chemical composition, grain size, and mechanical properties.

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Due to its superior corrosion and heat resistance, ASTM B423 Incoloy 825 Seamless Pipes have many applications. These pipes are primarily used in chemical processing for sulfuric acid pickling, acid regeneration, and wet phosphoric acid production. Furthermore, these pipes offer good mechanical strength and are ideal for high-pressure environments like oil and gas exploration and production, desalination plants, and power generation systems.
ASTM B423 Incoloy 825 Seamless Pipes offer numerous benefits to users. Firstly, they exhibit exceptional corrosion resistance, essential in aggressive environments, particularly in the presence of sulfuric, phosphoric, and nitric acids. Secondly, they have excellent mechanical properties that ensure durability and longevity. Thirdly, they are easy to weld, making installation manageable and faster, saving time and money. Lastly, they have a low coefficient of thermal expansion, meaning they handle high-pressure environments without deforming.

Cleaning and maintaining ASTM B423 Incoloy 825 Seamless Pipes ensures their longevity and continued performance. Regular cleaning is necessary to prevent the buildup of impurities and contaminants, which can deteriorate the pipes' integrity. The most common cleaning processes for these pipes are mechanical cleaning, chemical cleaning, and electrochemical cleaning. Maintenance involves regular inspections to detect any signs of corrosion, cracks, or leaks.
ASTM B423 Incoloy 825 Seamless Pipes' cost and availability depend on various factors such as the production process's quality, quantity required, and supplier location. These pipes are generally more expensive than conventional pipes because of their unique properties and manufacturing process. However, they offer superior performance, which makes them worth the investment. They are readily available from reputable suppliers worldwide, making them accessible to anyone who requires them.

ASTM B423 Incoloy 825 Seamless Pipes are a reliable and popular choice for demanding industrial applications that require excellent heat and corrosion resistance. With this blog post, we hope to have provided insight into this popular alloy's type, uses, and benefits. The key takeaways are that Incoloy 825 Seamless Pipes offer excellent mechanical strength, corrosion resistance, and heat resistance while being easy to weld and maintain.


Incoloy 825 ASTM B423 Seamless Pipes are a type of seamless pipe made from an alloy called Incoloy 825. These pipes conform to the ASTM B423 specification, which defines the requirements for seamless nickel-chromium-iron-molybdenum-copper alloy pipes.

Incoloy 825 ASTM B423 Seamless Pipes are available in various dimensions to accommodate different piping requirements. The specific dimensions & tolerances of the pipes conform to the ASTM B423 standard.

Incoloy 825 ASTM B423 Seamless Pipes are widely used in various industries, including chemical processing, oil, gas, marine, & desalination. 825 ASTM B423 Seamless Pipes are commonly employed in corrosive applications such as sulfuric acid production, pickling operations, flue gas desulfurization systems & seawater handling.

Specification of Incoloy Alloy 825 Seamless Pipes

Spec bag
Seamless Pipe
Specifications: ASTM B423 / ASME SB423
Seamless Pipe Size : 1/8″NB TO 30″NB IN
Length : Single Random, Double Random & Required Length
Type : Seamless Pipes
Form : Round Pipes, Square Pipes, Rectangular Pipe
Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH120, SCH140, SCH160, XXS
End : Plain End, Beveled End, Treaded

Types of Incoloy 825 Seamless Pipes

Incoloy 825 Seamless Pipes

Incoloy 825 Seamless Pipes

  • - Incoloy 825 Seamless Pipe
  • - ASTM B423 Incoloy 825 Seamless Pipes
  • - N08825 Seamless Pipes
  • - 2.4858 Seamless Pipes
  • - 825 Incoloy Seamless Pipe
  • - ASME SB423 825 Incoloy Alloy Seamless Pipes
  • - Incoloy® Alloy 825 Seamless Pipes Supplier
  • - Alloy 825 Seamless Pipes Manufacturer
Incoloy 825 Round Pipes

Incoloy 825 Round Pipes

  • - Incoloy 825 Round Pipe
  • - ASTM B423 Incoloy 825 Round Pipes
  • - N08825 Round Pipes
  • - 1.4876 Round Pipes
  • - 825 Incoloy Round Pipe
  • - ASME SB423 825 Incoloy Alloy Round Pipes
  • - Incoloy® Alloy 825 Round Pipes Supplier
  • - Alloy 825 Round Pipes Manufacturer

Equivalent Grades for Incoloy 825 Seamless Pipes

STANDARD UNS WERKSTOFF NR. JIS AFNOR BS GOST EN OR
Incoloy Alloy 825 N08825 2.4858 NCF 825 NFE30C20DUM NA 16 ЭП703 NiCr21Mo XH38BT

Incoloy Alloy 825 Seamless Pipes Chemical Composition

Grade C Mn Si S Cu Fe Ni Cr Al Ti
Incoloy 825 0.05 max 1.00 max 0.5 max 0.03 max 1.50 – 3.00 22.00 min 38.00 – 46.00 19.50 – 23.50 0.02 max 0.06 – 1.20

Mechanical Properties of Incoloy 825 Seamless Pipes

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Incoloy 825 8.14 g/cm3 1400 °C (2550 °F) Psi – 80,000 , MPa – 550 Psi – 32,000 , MPa – 220 30 %

Application Industries

  • Refineries
  • Petrochemicals Industry
  • Oil & Gas Industry
  • Mining
  • Construction
  • Pharmaceuticals
  • Automobile