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Inconel 825 Pipe – Composition, Properties and Uses

Inconel 825 Pipes

Inconel 825 Pipes are a type of nickel-based alloy widely used for various industrial applications. These pipes are known for their excellent corrosion resistance, high strength, and good weldability. If you want durable, reliable, and long-lasting pipes for your project, Inconel 825 pipes could be an excellent choice. This blog post will discuss Inconel 825 Pipes’ Composition, Physical Properties, Mechanical Properties, Uses, Heat Treatment, and Corrosion Resistance in detail.


Inconel 825 Pipe Composition:

WERKSTOFF NR. 2.4858 Pipe contains 38% nickel, 22% chromium, 3% molybdenum, and 1.5% iron. Adding copper, titanium, and aluminium makes Inconel 825 Pipes resistant to aqueous corrosion, organic acids, and alkalis. The presence of carbon, silicon, and manganese makes these pipes strong and durable.

Grade % Ni Cr Fe C Mn Si Cu Mo Al Ti P S
Incoloy 825 Min 38 19.5 Bal. 1.5 2.5 0.6
Max 46 23.5 0.05 1 0.5 3 3.5 0.2 1.2 0.03 0.03

Inconel 825 Pipe Physical Properties:

ASME SB 423 UNS N08825  Pipes have a density of 8.14 g/cm3 and a melting point of 1,420°C. These pipes can withstand high temperatures of up to 870°C, making them ideal for high-temperature applications where other materials would fail.

Inconel 825 Pipe Mechanical Properties:

Incoloy 825 Welded Pipe have high tensile strength and good ductility. They also have excellent fatigue resistance and creep resistance. The yield strength of 2.4858 Incoloy 825 Pipes is 30 ksi, and the ultimate tensile strength is 85 ksi. These properties make Inconel 825 Pipes suitable for use in challenging environments.

Tensile Strength


Yield Strength



σ5 /%

≥550 ≥220 ≥30

Inconel 825 Pipe Equivalent

Grade UNS No Old British Euronorm GOST Japanese JIS
Incoloy 825 N08825 NA 16 NiCr21Mo 2.4858 NFE30C20DUM ЭП703 NCF 825

Inconel 825 Pipe Uses:

Alloy 825 Pipe are used in various industries, including chemical processing, oil and gas, marine engineering, nuclear power, and aerospace. These pipes are typically used for heat exchangers, piping systems, pressure vessels, and reactor components. Inconel 825 Pipes are also used in desalination plants, where they can resist the corrosive effects of seawater.

Inconel 825 Pipe Heat Treatment:

2.4858 Incoloy 825 Pipes can be annealed at temperatures between 980°C and 1,080°C. This process improves the ductility and toughness of the pipes. Inconel 825 Pipes can also be cold-worked, which increases their strength and hardness. However, the maximum cold working limit for Inconel 825 Pipes is 20%.

Inconel 825 Pipe Corrosion Resistance:

Alloy 825 Clad Pipe resist various corrosive media, such as sulfuric acid, hydrochloric acid, nitric acid, and seawater. They also resist pitting, crevice corrosion, and stress corrosion cracking. Inconel 825 Pipes are particularly well-suited for use in acidic environments.



lloy 825 Welded Pipe are a highly durable and corrosion-resistant type of metal piping widely used in various industries. These pipes are known for their excellent physical and mechanical properties, making them ideal for high-temperature and high-pressure applications. Inconel 825 Pipes are commonly used in chemical processing, oil and gas, marine engineering, nuclear power, and aerospace. They are also highly resistant to various corrosive media, making them suitable for use in acidic environments. With their excellent properties, Alloy 825 Pipes are a highly popular choice for use in demanding applications.


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