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Melting Point, Thermal Expansion & Mechanical Properties of Inconel 600

15:08:59 06/04/2026

(Meta: Full technical data sheet of Inconel 600 physical parameters. In stock plates, round bars, seamless tubes for global industrial purchasers.)

Inconel 600 (UNS N06600 / W.Nr. 2.4816) is a nickel-chromium-iron, solid-solution strengthened alloy widely used in heat treatment, chemical processing, nuclear power, and high-temperature furnace applications. It is not a precipitation-hardening alloy like Inconel 718, but it provides excellent resistance to chloride stress corrosion cracking, good oxidation resistance at elevated temperatures, and reliable mechanical properties across a broad temperature range. Shanghai COCESS Special Alloys Co., Ltd​ supplies Inconel 600 plates, sheets, bars, tubes, and custom-machined parts with full EN 10204 3.1 documentation and global export support.

Chemical Composition (ASTM B168 / ASME SB168)

Element

Content (wt%)

Function

Nickel (Ni)

≥ 72.0

Base matrix; provides stability in reducing environments and chloride SCC resistance

Chromium (Cr)

14.0 – 17.0

Improves oxidation resistance and moderate corrosion resistance

Iron (Fe)

6.0 – 10.0

Strengthens the alloy and stabilizes the austenitic structure

Carbon (C)

≤ 0.15

Allows limited carbide formation; higher carbon variants available for specific creep needs

Manganese (Mn)

≤ 1.0

Deoxidizer; improves hot workability

Silicon (Si)

≤ 0.50

Deoxidizer; contributes to surface stability

Sulfur (S)

≤ 0.015

Controlled to avoid hot shortness and welding issues

Copper (Cu)

≤ 0.50

Residual element


Melting Point and Basic Physical Properties

Property

Value

Note

Density

8.47 g/cm³ (0.306 lb/in³)

Typical for nickel-base alloys

Melting Range

1354 – 1413 °C (2470 – 2575 °F)

Determines annealing and hot-working windows

Electrical Resistivity

1.03 µΩ·m (at 20 °C)

Relevant for electrical and heating elements

Specific Heat

444 J/kg·°C (at 20 °C)

Used in thermal energy calculations

Curie Point

Approximately –124 °C (–192 °F)

Explains essentially non-magnetic behavior at room temperature


Coefficient of Thermal Expansion (CTE)

Inconel 600 has a moderate and relatively stable coefficient of thermal expansion, which is useful in components exposed to thermal cycling.

Temperature Range (°C)

Mean CTE (µm/m·°C)

20 – 100

13.3

20 – 200

13.8

20 – 300

14.2

20 – 400

14.5

20 – 500

14.9

20 – 600

15.3

20 – 700

15.8

20 – 800

16.1

20 – 900

16.4

20 – 1000

16.4 – 17.1


Thermal Conductivity

Thermal conductivity of Inconel 600 increases with temperature, which benefits heat transfer in certain furnace and exchanger applications.

Temperature (°C)

Thermal Conductivity (W/m·°C)

20

14.9

100

15.9

200

17.3

300

19.0

400

20.5

500

22.1

600

23.9

700

25.7

800

27.5

900

1000

31.6


Elastic Modulus and Shear Modulus

Designers must account for the gradual decrease in elastic modulus at elevated temperatures.

Temperature (°C)

Elastic Modulus (GPa)

Shear Modulus (GPa)

20

207 – 214

~77 – 80

100

~210

200

~205

300

~199

400

~193 – 199

500

~187

600

~177 – 180

700

~172

800

~164

900

~154

1000

~143


Mechanical Properties (Room Temperature, Annealed Condition)

Inconel 600 is usually supplied in the annealed or solution-treated condition. It can also be strengthened by cold working, but it cannot be precipitation hardened.

Property

Typical Value

ASTM B168 Minimum

Tensile Strength (Rm)

550 – 690 MPa

≥ 550 MPa

Yield Strength (Rp0.2)

240 – 345 MPa

≥ 240 MPa

Elongation (A5)

30 – 55 %

≥ 30 %

Hardness (HRB / HB)

65 – 100 HRB / 150 – 200 HB

≤ 100 HRB


Mechanical Properties at Elevated Temperatures

Temperature (°C)

Tensile Strength (MPa)

Yield Strength (MPa)

Elongation (%)

20

550 – 690

240 – 345

30 – 55

200

500 – 600

200 – 280

30 – 50

400

480 – 560

180 – 240

28 – 45

600

450 – 520

170 – 210

25 – 40

800

280 – 350

120 – 150

20 – 35

1000

140 – 200

80 – 120

15 – 30


Key Characteristics and Applications

  • Chloride Stress Corrosion Cracking Resistance:​ Superior to 300-series stainless steels in chloride-containing aqueous environments.

  • High-Temperature Oxidation Resistance:​ Performs well in air up to approximately 1150 – 1200 °C, forming a protective oxide scale.

  • Caustic Corrosion Resistance:​ Excellent resistance to sodium hydroxide (NaOH) and potassium hydroxide (KOH) solutions, especially at elevated temperatures.

  • Weldability and Formability:​ Can be welded using common techniques (TIG, MIG, SMAW) with matching or overalloyed fillers such as ERNiCr-3. Good cold-forming characteristics in the annealed condition.

Typical Applications:

  • Heat treatment furnaces: radiant tubes, muffles, retorts, annealing baskets, and fixtures

  • Chemical processing: nitric acid concentrators, reactors, and heat exchangers

  • Nuclear power: steam generator tubing and related components

  • Aerospace and thermal processing: combustion chambers, ducting, and high-temperature fasteners


Available Product Forms and Supply Condition

Shanghai COCESS Special Alloys Co., Ltd​ supplies Inconel 600 in the following forms:

Product Form

Standard

Typical Condition

Plate / Sheet / Strip

ASTM B168 / ASME SB168

Annealed, pickled, or bright annealed

Round Bar / Forging Stock

ASTM B166 / ASME SB166

Annealed or solution treated

Seamless Tube / Pipe

ASTM B167 / B163 / ASME SB167 / SB163

Annealed or bright annealed

Welded Pipe

ASTM B517 / ASME SB517

Welded, solution treated, pickled

Custom Machined Parts

According to customer drawing

Rough or finish machined

All products are delivered with EN 10204 3.1 mill test certificates. Third-party inspection (SGS, TÜV, DNV, BV) and additional testing (UT, PT, ET) are available upon request.


Why Choose Shanghai COCESS Special Alloys Co., Ltd?

  • Reliable Inventory:​ Plates, bars, and tubes are stocked for fast delivery.

  • Custom Processing:​ Cutting, machining, drilling, bending, and surface treatment can be arranged in-house.

  • Documented Quality:​ Full traceability, chemical analysis, mechanical test reports, and heat treatment records are provided with each shipment.

  • Global Export Experience:​ We regularly serve customers in Europe, Southeast Asia, the Middle East, and North America with seaworthy packaging and complete export documentation.


If you need Inconel 600 plates, round bars, seamless tubes, or custom-machined parts, please contact Shanghai COCESS Special Alloys Co., Ltd​ for stock availability, technical data sheets, and a formal quotation. Our team is ready to support your engineering and procurement requirements with professional service and dependable materials.

Website: https://en.cocessalloys.com
Email: sales@cocessalloys.com

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