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Incoloy 825 Seamless Pipe

Incoloy 825 |UNS N08825|2.4858 Seamless Pipe

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Incoloy 825 Seamless Pipes (UNS N08825 / W.Nr. 2.4858) are high-performance nickel-iron-chromium solutions engineered for exceptional resistance to both reducing and oxidizing acids. As a specialized manufacturer based in China, We produces premium seamless piping that strictly adheres to ASTM B423 and ASME SB423 international standards.

Our Incoloy 825 pipes are stabilized with Titanium to inhibit intergranular corrosion and provide superior protection against chloride-ion stress corrosion cracking (SCC) and pitting in sulfuric and phosphoric acid environments. We offer a comprehensive size range from 1/2” to 12” NPS and wall thicknesses from SCH 10 to SCH 80. Through advanced cold-drawing and vacuum annealing, we ensures every pipe delivers the structural integrity required for chemical processing, pollution control, and offshore oil & gas applications.

SeamlessIncoloy 825 Pipe (Incoloy825 / UNS N08825 / W.Nr. 2.4858) is a titanium-stabilized Ni-Fe-Cr-Mo-Cu alloy for sulfuric and phosphoric acid service. Manufactured by Tengqi in Fujian, China, every heat is fully traceable, hydro-tested and available with third-party inspection (SGS / BV / TUV) on request.

Product Specifications

  • ASTM B161 / B163 — Seamless Tube & Pipe
  • ASTM B165 / B167 — Seamless Pipe
  • ASTM B407 / B423 — Seamless Pipe & Tube
  • ASTM B622 — Seamless Pipe & Tube
  • ASTM B829 — General Requirements
  • Finishing: solution annealed, pickled & polished; bright annealed available on request

Size Range

Outside Diameter (OD)Wall ThicknessLength
6 mm – 1016 mm (1/4"– 40")0.5 mm – 65 mm6 m / 12 m, or as required

Chemical Composition

Incoloy825 (UNS N08825) — Composition %

UNSCMnSSiCrNiMoCuTiAlFe
N08825≤ 0.05≤ 1.0≤ 0.03≤ 0.519.5 – 23.538.0 – 46.02.5 – 3.51.5 – 3.00.6 – 1.2≤ 0.2≥ 22.0

Mechanical Properties

PropertyValue
Delivery ConditionSolution annealed, pickled & polished
Tensile Strength≥ 586 MPa
Yield Strength (0.2% offset)≥ 241 MPa
Elongation in 2 in. / 50 mm≥ 30%

Physical Properties

PropertyValue
Density8.14 g/cm3
Thermal Conductivity11.1 W/m·K
Specific Heat Capacity440 J/kg·K
Elastic Modulus196 GPa
Magnetic PropertiesPractically non-magnetic
PREN (Pitting Resistance Equivalent)30.0-33.0

Industry Applications

Sulfuric & Phosphoric Acid Service
Chemical & Petrochemical Industry
Fertilizer & Urea Plants
Heat Exchangers & Boiler Tubes
Marine & Offshore Engineering
Nuclear Power
Pressure Vessels & Reactors
Flue Gas Desulfurization

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Browse the complete ranges: All Incoloy Alloy Pipes | Explore Incoloy Alloy Tubes | Seamless Stainless Steel Pipes Catalog

CONTACT US

Lidun Industrial Park, Lidun Town, Zhouning County, Ningde City, Fujian Province,355400,China

+86-577-88877003
+86-577-88877015
+86-577-88877019

+86 13587686960

info@xtd-ss.com
sales@xtd-ss.com

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Lidun Industrial Park, Lidun Town, Zhouning County, Ningde City, Fujian Province,355400,China

+86-577-88877003
+86-577-88877015
+86-577-88877019

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