Name: ASTM B423 UNS N08825 Incoloy 825 Nickel Alloy Steel Seamless Large Diameter Tube, Resistant To High Temperature, High Concentration Acid
Brand: Yuhong Group Co.,Ltd
SKU: ASTM B423 UNS N08825
Price: 150000 USD
Availability: InStock

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ASTM B423 UNS N08825 Incoloy 825 Nickel Alloy Steel Seamless Large Diameter Tube, Resistant To High Temperature, High Concentration Acid

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 B423 UNS N08825

Payment & Shipping Terms:

Minimum Order Quantity:	100KGS
Price:	NEGOTIABLE
Packaging Details:	Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Delivery Time:	20-80 Days
Payment Terms:	L/C, T/T

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Detailed Product Description

Standard:	ASTM B423	SPECIFICATION:	UNS N08825 Incoloy 825
Shape:	Round	Type:	Seamless
Length:	Customized	Processing Service:	Bending, Welding, Decoiling, Punching, Cutting
Highlight:	ASTM B423 Incoloy 825 nickel alloy tube , UNS N08825 seamless large diameter pipe , high temperature acid resistant nickel alloy tube

ASTM B423 UNS N08825 Incoloy 825 Nickel Alloy Steel Seamless Large Diameter Tube, Resistant To High Temperature, High Concentration Acid

ASTM B423 UNS N08825 tube is a seamless tube made of a nickel-iron-chromium-based austenitic alloy. Tubes manufactured according to this standard are widely used in petrochemical, marine engineering, and nuclear power industries.

The commercial grade is Incoloy 825. It is a nickel-based alloy specifically designed for extremely corrosive environments, exhibiting excellent resistance to stress corrosion cracking by sulfuric acid, phosphoric acid, and chloride ions, and performing exceptionally well in high-temperature, high-concentration acid, and chloride-containing media.

Chemical Composition (Ladle Analysis)
Element	Composition (wt%)
Nickel (Ni)	38.0 – 46.0
Iron (Fe)	≥ 22.0 (balance)
Chromium (Cr)	19.5 – 23.5
Molybdenum (Mo)	2.5 – 3.5
Copper (Cu)	1.5 – 3.0
Titanium (Ti)	0.6 – 1.2
Carbon (C)	≤ 0.05
Manganese (Mn)	≤ 1.00
Silicon (Si)	≤ 0.50
Phosphorus (P)	≤ 0.030
Sulfur (S)	≤ 0.030

Mechanical Properties (Seamless Pipe, Solution Annealed)
Property	Cold Finished	Hot Finished	Requirement Min.
Tensile Strength, min	586 MPa (85 ksi)	517 MPa (75 ksi)	586 MPa (85 ksi)
Yield Strength (0.2% offset), min	241 MPa (35 ksi)	172 MPa (25 ksi)	241 MPa (35 ksi)
Elongation (in 2 in / 50 mm), min	30%	30%	30%
Hardness (Rockwell B), max	90 HRB	90 HRB	90 HRB

Physical Properties (Typical Values)
Property	Value
Density	8.14 g/cm³ (0.294 lb/in³)
Melting Range	1370 – 1400 °C (2500 – 2550 °F)
Specific Heat Capacity (20 °C)	440 J/(kg·K) (0.105 Btu/(lb·°F))
Thermal Conductivity (20 °C)	10.8 – 11.0 W/(m·K) (75 Btu·in/(ft²·h·°F))
Electrical Resistivity (20 °C)	112 – 113 μΩ·cm
Modulus of Elasticity (20 °C)	195 GPa (28.3 × 10³ ksi)
Modulus of Rigidity (20 °C)	76 GPa (11.0 × 10³ ksi)

Application

Petrochemicals: Residue hydrogenation unit pipelines, sour gas pipelines, offshore platform oil and gas transportation
Chemical processing: Sulfuric acid/phosphoric acid production equipment, acid washing heating pipes, reactor pipelines
Marine engineering: Seawater cooling heat exchangers, seawater desalination plants, subsea pipelines
Nuclear power: Nuclear fuel reprocessing equipment; Resistant to various corrosive media combinations
Oil and gas extraction: Downhole control pipelines, chemical injection pipelines, sour gas well equipment

ASTM B423 UNS N08825 Incoloy 825 Nickel Alloy Steel Seamless Large Diameter Tube, Resistant To High Temperature, High Concentration Acid 0