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ASTM B163 UNS N08825 Nickel Alloy Tube Incoloy 825 Seamless Heat Exchanger Tube

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ASTM B163 UNS N08825 Nickel Alloy Tube Incoloy 825 Seamless Heat Exchanger Tube

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Brand Name : YUHONG

Model Number : ASTM B163 Incoloy 825 (NO8825) DIN 2.4858

Certification : ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008

Place of Origin : CHINA

MOQ : 500KGS

Payment Terms : L/C,T/T

Delivery Time : 7 DAYS

Packaging Details : Ply-wooden Case /Iron Case/ Bundle with plastic Cap

Product Name : Nickel Alloy Tube

Standard : ASTM B163 / ASME SB163

Material : Incoloy 825 / UNS N08825 / DIN 2.4858

O.D. : 1/4", 3/8", 1/2", 5/8", 1", 1 1/4", etc

W.T. : BWG 10, 12, 14, 16, 18, 20, etc

Length : Single Random, Double Random & Cut Length

Shape : Straight tube, U bend tube

NDT : EDDY CURRENT TEST, HYDROSTATIC TEST

Type : Seamless

Application : Boiler, Heat Exchanger, Chemical process equipment, etc.

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ASTM B163 UNS N08825 / DIN 2.4858 / Incoloy 825 Seamless Nickel Alloy Heat Exchanger Tube


ASTM B163 Incoloy 825 seamless tube represents a high-performance, corrosion-resistant product designed and manufactured to exacting standards for critical service in heat exchangers, condensers, and demanding process environments where reliability under pressure and corrosion is paramount. Its seamless construction and the proven properties of Incoloy 825 make it a cornerstone material for challenging industrial applications.

Sizes: Typically covers a wide range of OD and wall thickness combinations common for heat exchanger tubing (e.g., OD from ~1/4" to 3"+, WT as per schedule or BWG).

Temper: Usually supplied in the solution annealed condition (as required by ASTM B163 for corrosion resistance).



Chemical Composition of ASTM B163 Incoloy 825 Seamless Nickel Alloy tube

Element % Element %
Nickel 38.0 – 46.0 Carbon 0.05 max
Chromium 19.5 – 23.5 Manganese 1.0 max
Molybdenum 2.5 – 3.5 Sulfur 0.03 max
Copper 1.5 – 3.0 Silicon 0.5 max
Titanium 0.6 – 1.2 Aluminium 0.2 max
Iron 22.0 min (~33%)

Mechanical Property of ASTM B163 Incoloy 825 Seamless Nickel Alloy tube

Form Condition 0.2% Proof Stress
MPa		 Tensile Strength
MPa		 Elong
%
Tube Annealed 440 770 35
Tube Cold drawn 880 1000 15
Bar Annealed 325 690 45
Plate Annealed 340 660 45
Sheet Annealed 420 760 39

Primary Properties:

  • Excellent Corrosion Resistance: Specifically designed for harsh environments.

    • Resists sulfuric & phosphoric acids.

    • Excellent resistance to chloride-ion stress-corrosion cracking (SCC).

    • Good resistance to reducing and oxidizing acids.

    • Resists corrosion in seawater, brine, sour gas (H2S), and caustic solutions.

  • Good Mechanical Properties: High strength and toughness across a wide temperature range.

  • High-Temperature Stability: Suitable for service up to approximately 540°C (1000°F) in many environments.

  • Fabricability: Good weldability and formability using standard techniques for nickel alloys

ASTM specifications for Incoloy Alloy 825.

Specification Title
B163 Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes
B423 Nickel-Iron-Chromium-Molybdenum-Copper Alloy (UNS N08825 and N08221)* Seamless Pipe and Tube
B424 Ni-Fe-Cr-Mo-Cu Alloy (UNS N08825 and UNS N08221)* Plate, Sheet, and Strip
B425 Ni-Fe-Cr-Mo-Cu Alloy (UNS N08825)
B704 Welded UNS N06625 and UNS N08825 Alloy Tubes
B705 Nickel-Alloy (UNS N06625 and N08825) Welded Pipe
B751 General Requirements for Nickel and Nickel Alloy Welded Tube

Application

  • Shell & Tube Heat Exchangers / Condensers

  • Feedwater Heaters

  • Process Piping in Chemical & Petrochemical Plants (handling acids, chlorides, H2S)

  • Offshore Oil & Gas Production Systems (seawater cooling, process fluids)

  • Flue Gas Desulfurization (FGD) Systems

  • Acid Production, Handling, and Recovery

  • Seawater Handling Equipment

  • Nuclear Fuel Reprocessing



ASTM B163 UNS N08825 Nickel Alloy Tube Incoloy 825 Seamless Heat Exchanger Tube


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ASTM B163 UNS N08825 Nickel Alloy Tube Incoloy 825 Seamless Heat Exchanger Tube Images

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