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Incoloy 825

Material: Incoloy 825, UNS N08825, 2.4858

Incoloy 825 (UNS N08825, 2.4858)is a nickel-iron-chromium alloy with additions of molybdenum, copper and titanium. Alloy 825 is similar to alloy 800 but has improved resistance to aqueous corrosion. The high nickel content makes the alloy effective against stress corrosion cracking.

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What Is Incoloy 825?

Incoloy is a nickel-iron-based high-temperature alloy designed for use in highly corrosive environments and extreme temperatures. These alloys combine excellent oxidation and corrosion resistance with high mechanical strength, especially at high temperatures. Unlike Hastelloy, Incoloy contains a large amount of iron and is relatively low in cost. Common incoloy include alloy 800 and alloy 825.

Incoloy 825 (UNS N08825) is an austenitic nickel-iron-chromium alloy. Alloy 825 is similar to Alloy 800, but its resistance to aqueous corrosion is improved. Alloy 825 has good corrosion resistance and can withstand a variety of corrosive media such as sulfuric acid, nitric acid and sodium hydroxide in the same equipment. It also has good formability and weldability, suitable for most processing.

Incoloy 825 Composition

Grade	C≤	Mn≤	Si≤	S≤	Cu	Fe≥	Ni	Cr	Al≤	Ti	Mo
Incoloy 825	0.05	1.0	0.5	0.03	1.5-3.0	22	38.0-46.0	19.5-23.5	0.2	0.6-1.2	2.5-3.5

Alloy 825 Mechanical Properties

Grade	Tensile, min, ksi[MPa]	Yield, min, ksi[MPa]	Elongation, %(min)
Incoloy 825	85[586]	35[241]	30%

Material 825 Physical Properties

Properties	Value
Density	8.1 g/cm³
Melting point	1370 - 1400℃
Thermal conductivity (100℃)	10.8 λ/(W/m*℃)
Specific heat	440 J/kg*℃
Elastic modulus	195 GPa
Shear modulus	-
Resistivity	1.37 μΩ*m
Poisson's ratio	-
Linear expansion coefficient (20-100℃)	14.1 a/10^-6℃^-1

Incoloy 825 World Equivalent Grades

STANDARD	WERKSTOFFNR.	UNS	JIS	BS	GOST	AFNOR	EN	OR
Incoloy 825	2.4858	N08825	NCF 825	NA 16	ЭП703	NFE30C20DUM	NiCr21Mo	XH38BT

Incoloy 825 ASTM Product

Product	Standard	Show
Pipe SMLS	ASTM B423
Tube SMLS	ASTM B423
Sheet/Plate/Strip	ASTM B424
Bar /Rod	ASTM A425
Forging /Flange	ASTM B564
Fittings	ASTM B366
Pipe Welded	ASTM B474

Incoloy 825 Applicaiton

Heating tubes, containers, and chains for sulfuric acid pickling plants.
Seawater cooling heat exchangers, marine product piping systems.
Sour gas environment piping: heat exchangers, evaporators, scrubbers, dip tubes, etc. In.
Air heat exchangers in petroleum refining.
Food engineering chemical process.
Flame Retardant Alloys for High Pressure Oxygen Applications.

About Incoloy 825 Standard

ASTM B424 pdf review

ASTM A425 pdf review

ASTM B564 pdf review

Our Products

JN Alloy Products

Quality Control

Our Quality Management System has been verified with ISO9001:2008 to guarantee all production processes are well controlled so that we can make sure all materials are traceable and well inspected; only the best quality is delivered to our clients.

Non-Destructive Tests	Destructive Tests
Ultrasonic Test	Metallographic Examination
Radiographic Examination	Intergranular Corrosion Test
PMI Test	Grain Size Test
Penetration Test	Mechanical Property Test
Dimension Examination	Tension Test
Surface Examination	Bending Test
Hardness Examination	Impact Test

Testing Equiptments

All products are tested by destructive and non-destructive testing methods, which are performed at different stages in the production process.

Packing

Our team adopts professional packaging methods to ensure that the products reach our clients in their best form, without getting affected by the adversities of the environment.

If by any chance (however small it may be), the products fail to satisfy the customers, we act on our product replacement scheme to ensure that they receive better.

Stock System

We have a large stock of pipes / flanges / BW fittings / forged fittings. (Stainless Steel 304 316,etc. )
No MOQs
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Pre-sales service—Professional and comprehensive pre-sales service guides and directs your purchase.

Assist with material (standard, grade) selection.
Assure metallurgical properties meet requirements.
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Provide the customers with timely, specific and competitive quotations.
Provides small and medium-sized customers with customized financial services.

On-sale service—Meticulous and scientific on-sales service makes your choice more worry-saving and reliable.

Review the contact; confirm or amend the uncertainties or the issues that have to be fixed through negotiations by both parties.
Assign production orders and arrange production as required.
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Monitor the production schedule on a real-time basis to ensure punctual delivery.
Inspect the stock conditions at the port to avoid the cargo getting heavily rusty.
Integrate different customers' cargos and supply one-stop CFR services, control the transportation quality, and keep watch on the cargo for the customers.

After-sales service—Thoughtful and prompt after-sales service provides support and guarantees for your benefits.

Allow quality claims within 45 days after the cargo arrives at the destination port against a third-party inspection report.
Any small quality problems can be solved at your local place; we can make compensation in the next orders.
If there are any big quality problems, we will reproduce it for you or send money back to you.

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Incoloy 825

Incoloy 825 Composition

Incoloy 825 Composition

Alloy 825 Mechanical Properties

Material 825 Physical Properties

Incoloy 825 World Equivalent Grades

Incoloy 825 ASTM Product

Incoloy 825 Applicaiton

About Incoloy 825 Standard

Our Products

Quality Control

Packing

Stock System

Our Service