Name: ASTM B163 UNS N08825 / Incoloy 825 Seamless Heat Exchanger & Condenser Tubes
Brand: Yuhong Group Co.,Ltd
SKU: ASTM B163 N08825, N08810, N08811
Price: 1000000.00 USD
Availability: InStock

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ASTM B163 UNS N08825 / Incoloy 825 Seamless Heat Exchanger & Condenser Tubes

Product Details:

Place of Origin:	China
Brand Name:	YUHONG
Certification:	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number:	ASTM B163 N08825, N08810, N08811

Payment & Shipping Terms:

Minimum Order Quantity:	10 PCS
Price:	Negotiable
Packaging Details:	Ply-wooden Case /Iron Case/ Bundle with plastic Cap/Woven Case
Delivery Time:	Depends on quantity
Payment Terms:	T/T,L/C
Supply Ability:	1000 Tons per month

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Detailed Product Description

Highlight:

ASTM B163 Incoloy 825 seamless tubes

UNS N08825 heat exchanger tubes

Incoloy 825 condenser tubes with warranty

ASTM B163 UNS N08825 / Incoloy 825 Seamless Heat Exchanger & Condenser Tubes

Introduction and Standard Specifications

These seamless tubes are manufactured from nickel-iron-chromium alloy UNS N08825 (Incoloy 825) in strict compliance with the ASTM B163 standard. This specification defines requirements for seamless nickel alloy tubes designed specifically for condensers and heat exchangers, covering tubes with outside diameters of 3 inches (76.2 mm) and under. The latest published version is ASTM B163-22.

Material: UNS N08825 / Incoloy 825 Alloy

Incoloy 825 is a nickel-iron-chromium austenitic alloy enhanced with molybdenum, copper, and titanium, engineered to deliver exceptional corrosion resistance in demanding environments.

Excellent resistance to corrosion in both oxidizing and reducing acids
Superior resistance to stress corrosion cracking and pitting/crevice corrosion in chloride-containing media
Good mechanical properties from cryogenic to moderately high temperatures
Titanium addition stabilizes the alloy against sensitization during welding or high-temperature exposure

Chemical Composition and Mechanical Properties

The performance of N08825 tubes results from tightly controlled chemical composition and mechanical properties.

Typical Chemical Composition (Weight %):

Element	Content (%)	Element	Content (%)
Nickel (Ni)	38.0 - 46.0	Titanium (Ti)	0.60 - 1.20
Chromium (Cr)	19.5 - 23.5	Manganese (Mn)	1.00
Iron (Fe)	≥ 22.0	Silicon (Si)	0.50
Molybdenum (Mo)	2.50 - 3.50	Aluminum (Al)	0.20
Copper (Cu)	1.50 - 3.00	Carbon (C)	0.050
Sulfur (S)	0.030

Typical Room Temperature Mechanical Properties (Annealed Condition):

Property	Metric Unit	Imperial Unit
Tensile Strength	≥ 586 MPa	≥ 85 ksi
Yield Strength	≥ 241 MPa	≥ 35 ksi
Elongation	≥ 30%	≥ 30%

Product Application Scenarios

ASTM B163 N08825 seamless tubes are critical components in industries requiring reliability in harsh conditions:

Chemical & Petrochemical Processing: Heat exchangers, condensers, reactor coolers, and piping systems handling sulfuric and phosphoric acids
Oil and Gas: Heat exchanger tubing in offshore platforms and refineries with resistance to sour gas and chloride ions
Marine and Offshore: Seawater cooling systems, condenser tubes in marine vessels, and desalination plant components
Power Generation: Feedwater heaters, condensers, and heat exchange equipment in fossil fuel and nuclear power plants
Acid Production & Pickling: Equipment for producing and handling acids, and pickling lines for steel treatment
Emerging Energy Sector: Components in green hydrogen production and renewable energy systems where corrosion resistance is critical