Inconel Alloys

Name: Inconel Alloys
Brand: FountainHead Alloys
Availability: InStock

About Inconel Alloys

Inconel is a family of austenitic nickel-chromium-based superalloys. They are oxidation-corrosion-resistant materials well suited for service in extreme environments subjected to pressure and heat. When heated, Inconel forms a thick, stable, passivating oxide layer protecting the surface from further attack.

FountainHead Alloys is a leading manufacturer, exporter and supplier of Inconel alloy products in Mumbai, India, serving clients in 60+ countries.

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Available Product Forms

Inconel alloys available in all standard and custom product forms.

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Round Bars

6mm to 500mm dia

▭

Sheets & Plates

0.5mm to 100mm

○

Pipes & Tubes

Seamless & Welded

★

Flanges

All types & sizes

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Fasteners

Bolts, Nuts, Studs

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Wires

All gauges

Inconel 600 (UNS N06600)

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Chemical Composition (%)

Element	Ni	Cr	Fe	C	Mn	Si	Cu	S
Inconel 600	72.0 min	14.0-17.0	6.0-10.0	0.15 max	1.0 max	0.5 max	0.5 max	0.015 max

Mechanical Properties

Property	Value
Tensile Strength	550 MPa min
Yield Strength (0.2%)	240 MPa min
Elongation	30% min
Hardness	≤95 HRB

Physical Properties

Property	Value
Density	8.47 g/cm³
Melting Range	1354-1413°C
Thermal Conductivity	14.9 W/m·K

Equivalent Grades

UNS	W.Nr/DIN	ASTM	AMS	BS	JIS
N06600	2.4816	B168/B167/B166	5540	NA14	NCF 600

Applications

Chemical processing equipment
Nuclear engineering components
Heat treating equipment & fixtures
Aerospace exhaust manifolds
Furnace components & muffles

Inconel 601 (UNS N06601)

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Chemical Composition (%)

Element	Ni	Cr	Fe	Al	C	Mn	Si	Cu	S
Inconel 601	58.0-63.0	21.0-25.0	Bal	1.0-1.7	0.10 max	1.0 max	0.5 max	1.0 max	0.015 max

Mechanical Properties

Property	Value
Tensile Strength	550 MPa min
Yield Strength (0.2%)	205 MPa min
Elongation	30% min
Hardness	≤100 HRB

Physical Properties

Property	Value
Density	8.11 g/cm³
Melting Range	1301-1368°C
Thermal Conductivity	11.2 W/m·K

Equivalent Grades

UNS	W.Nr/DIN	ASTM	AMS	BS	JIS
N06601	2.4851	B168	5715	-	NCF 601

Applications

Heat treating baskets & fixtures
Thermal processing equipment
Pollution control systems
Aerospace combustion liners

Inconel 617 (UNS N06617)

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Chemical Composition (%)

Element	Ni	Cr	Co	Mo	Al	Fe	C	Ti	Mn	Si	Cu	S	B
Inconel 617	44.5 min	20.0-24.0	10.0-15.0	8.0-10.0	0.8-1.5	3.0 max	0.05-0.15	0.6 max	1.0 max	1.0 max	0.5 max	0.015 max	0.006 max

Mechanical Properties

Property	Value
Tensile Strength	655 MPa min
Yield Strength (0.2%)	240 MPa min
Elongation	30% min
Hardness	≤100 HRB

Physical Properties

Property	Value
Density	8.36 g/cm³
Melting Range	1332-1380°C
Thermal Conductivity	13.4 W/m·K

Equivalent Grades

UNS	W.Nr/DIN	ASTM	AMS	BS	JIS
N06617	2.4663	B168	5888	-	-

Applications

Gas turbine hot-section components
Power generation equipment
Chemical manufacturing reactors
High-temperature structural components

Inconel 625 (UNS N06625)

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Chemical Composition (%)

Element	Ni	Cr	Mo	Nb+Ta	Fe	C	Mn	Si	Al	Ti	Co	P	S
Inconel 625	58.0 min	20.0-23.0	8.0-10.0	3.15-4.15	5.0 max	0.10 max	0.5 max	0.5 max	0.4 max	0.4 max	1.0 max	0.015 max	0.015 max

Mechanical Properties

Property	Value
Tensile Strength	827 MPa min
Yield Strength (0.2%)	414 MPa min
Elongation	30% min
Hardness	≤ HRC 40

Physical Properties

Property	Value
Density	8.44 g/cm³
Melting Range	1290-1350°C
Thermal Conductivity	9.8 W/m·K

Equivalent Grades

UNS	W.Nr/DIN	ASTM	AMS	BS	JIS
N06625	2.4856	B443/B446	5666	NA21	NCF 625

Applications

Aerospace ducting & exhaust systems
Marine & offshore components
Chemical processing vessels
Nuclear reactor core & control rod components
Oil & gas downhole equipment
Flue gas desulfurization systems

Inconel 660 (UNS S66286)

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Chemical Composition (%)

Element	Ni	Cr	Fe	Mo	Ti	Al	V	B	C	Mn	Si
Inconel 660	24.0-27.0	13.5-16.0	Bal	1.0-1.5	1.9-2.35	0.35 max	0.1-0.5	0.001-0.01	0.08 max	2.0 max	1.0 max

Mechanical Properties

Property	Value
Tensile Strength	860 MPa min
Yield Strength (0.2%)	550 MPa min
Elongation	15% min
Hardness	≤ HRC 35

Physical Properties

Property	Value
Density	7.95 g/cm³
Melting Range	1300-1390°C
Thermal Conductivity	12.5 W/m·K

Equivalent Grades

UNS	W.Nr/DIN	ASTM	AMS	BS	JIS
S66286	1.4980	A638	5525	-	-

Applications

Gas turbine components
High-temperature fasteners
Jet engine parts
Steam turbine bolting

Inconel 718 (UNS N07718)

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Chemical Composition (%)

Element	Ni	Cr	Fe	Mo	Nb+Ta	Ti	Al	Co	C	Mn	Si	Cu	P	S	B
Inconel 718	50.0-55.0	17.0-21.0	Bal	2.8-3.3	4.75-5.5	0.65-1.15	0.2-0.8	1.0 max	0.08 max	0.35 max	0.35 max	0.30 max	0.015 max	0.015 max	0.006 max

Mechanical Properties

Property	Value
Tensile Strength	1241 MPa min
Yield Strength (0.2%)	1034 MPa min
Elongation	12% min
Hardness	HRC 36-44

Physical Properties

Property	Value
Density	8.19 g/cm³
Melting Range	1260-1336°C
Thermal Conductivity	11.4 W/m·K

Equivalent Grades

UNS	W.Nr/DIN	ASTM	AMS	BS	JIS
N07718	2.4668	B637	5662/5663/5664	HR601	NCF 718

Applications

Jet engine components & turbine discs
Gas turbine blades & casings
Rocket motors & thrust chambers
Nuclear reactor components
Oil & gas drilling equipment
Cryogenic tanks & storage

Inconel 725 (UNS N07725)

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Chemical Composition (%)

Element	Ni	Cr	Mo	Nb+Ta	Ti	Fe	C	Mn	Si	Al	P	S
Inconel 725	55.0-59.0	19.0-22.5	7.0-9.5	2.75-4.0	1.0-1.7	Bal	0.03 max	0.35 max	0.2 max	0.35 max	0.015 max	0.010 max

Mechanical Properties

Property	Value
Tensile Strength	860 MPa min
Yield Strength (0.2%)	517 MPa min
Elongation	20% min
Hardness	HRC 35 max

Physical Properties

Property	Value
Density	8.31 g/cm³
Melting Range	1282-1349°C
Thermal Conductivity	10.8 W/m·K

Equivalent Grades

UNS	W.Nr/DIN	ASTM	AMS	BS	JIS
N07725	-	B805	-	-	-

Applications

Oil & gas sour service equipment
Subsea wellhead & tree components
Marine engineering applications
Chemical processing equipment
High-strength corrosion-resistant applications

Inconel 825 (UNS N08825)

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Chemical Composition (%)

Element	Ni	Cr	Fe	Mo	Cu	Ti	Al	C	Mn	Si	S
Inconel 825	38.0-46.0	19.5-23.5	22.0 min	2.5-3.5	1.5-3.0	0.6-1.2	0.2 max	0.05 max	1.0 max	0.5 max	0.03 max

Mechanical Properties

Property	Value
Tensile Strength	586 MPa min
Yield Strength (0.2%)	241 MPa min
Elongation	30% min
Hardness	≤90 HRB

Physical Properties

Property	Value
Density	8.14 g/cm³
Melting Range	1370-1400°C
Thermal Conductivity	11.1 W/m·K

Equivalent Grades

UNS	W.Nr/DIN	ASTM	AMS	BS	JIS
N08825	2.4858	B424/B425/B423	5551	-	NCF 825

Applications

Chemical processing vessels & piping
Pollution control equipment
Oil & gas recovery systems
Acid production plants
Nuclear fuel reprocessing
Marine engineering applications

Inconel X750 (UNS N07750)

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Chemical Composition (%)

Element	Ni	Cr	Fe	Ti	Al	Nb+Ta	Co	C	Mn	Si	Cu	S
Inconel X750	70.0 min	14.0-17.0	5.0-9.0	2.25-2.75	0.4-1.0	0.7-1.2	1.0 max	0.08 max	1.0 max	0.5 max	0.5 max	0.01 max

Mechanical Properties

Property	Value
Tensile Strength	1103 MPa min
Yield Strength (0.2%)	690 MPa min
Elongation	20% min
Hardness	HRC 32-40

Physical Properties

Property	Value
Density	8.28 g/cm³
Melting Range	1393-1427°C
Thermal Conductivity	12.0 W/m·K

Equivalent Grades

UNS	W.Nr/DIN	ASTM	AMS	BS	JIS
N07750	2.4669	B637	5542/5598/5667	HR4	NCF 750

Applications

Gas turbine engine components
Rocket engine thrust chambers
Nuclear reactor springs & bolts
Pressure vessels
High-temperature springs & fasteners

Why Choose FountainHead for Inconel

⚖

ISO Certified Quality

Full material traceability with mill test certificates and third-party inspection.

📦

Ready Stock

Extensive inventory of Inconel grades in all product forms for immediate dispatch.

🌎

Global Shipping

Exporting to 60+ countries with reliable logistics and custom packaging.

Frequently Asked Questions

Inconel 625 is primarily strengthened by solid-solution strengthening from molybdenum and niobium, offering excellent corrosion resistance and weldability. Inconel 718 is a precipitation-hardened alloy with much higher strength (1241 MPa tensile vs 827 MPa for 625) due to gamma double-prime hardening. 718 is preferred for structural aerospace components, while 625 excels in corrosive marine and chemical environments.

Inconel alloys can withstand continuous service temperatures ranging from 700°C to over 1000°C depending on the grade. Inconel 600 operates up to 1093°C, Inconel 601 up to 1175°C, and Inconel 718 up to 704°C for high-stress applications. Their strength retention at elevated temperatures makes them essential for gas turbines, furnaces, and heat treating equipment.

Inconel alloys are used extensively in aerospace (jet engines, turbine blades, exhaust systems), oil & gas (downhole equipment, wellhead components), chemical processing (reactors, heat exchangers), power generation (gas turbines, nuclear reactors), and marine applications. Their unique combination of high-temperature strength, oxidation resistance, and corrosion resistance makes them indispensable in these critical industries.

About Inconel Alloys

Available Product Forms

Round Bars

Sheets & Plates

Pipes & Tubes

Flanges

Fasteners

Wires

Inconel 600 (UNS N06600)

Chemical Composition (%)

Mechanical Properties

Physical Properties

Equivalent Grades

Applications

Inconel 601 (UNS N06601)

Chemical Composition (%)

Mechanical Properties

Physical Properties

Equivalent Grades

Applications

Inconel 617 (UNS N06617)

Chemical Composition (%)

Mechanical Properties

Physical Properties

Equivalent Grades

Applications

Inconel 625 (UNS N06625)

Chemical Composition (%)

Mechanical Properties

Physical Properties

Equivalent Grades

Applications

Inconel 660 (UNS S66286)

Chemical Composition (%)

Mechanical Properties

Physical Properties

Equivalent Grades

Applications

Inconel 718 (UNS N07718)

Chemical Composition (%)

Mechanical Properties

Physical Properties

Equivalent Grades

Applications

Inconel 725 (UNS N07725)

Chemical Composition (%)

Mechanical Properties

Physical Properties

Equivalent Grades

Applications

Inconel 825 (UNS N08825)

Chemical Composition (%)

Mechanical Properties

Physical Properties

Equivalent Grades

Applications

Inconel X750 (UNS N07750)

Chemical Composition (%)

Mechanical Properties

Physical Properties

Equivalent Grades

Applications

Why Choose FountainHead for Inconel

ISO Certified Quality

Ready Stock

Global Shipping

Frequently Asked Questions

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