A nickel-chromium grade, Alloy 600, often referred to as Inconel 600, is perfect for use in the heat treating industry.
Alloy 600 (Inconel 600) is a high-performance nickel-chromium-iron alloy designed to perform in elevated temperature and corrosive environments. It combines excellent oxidation resistance with outstanding mechanical properties, making it ideal for a wide range of industrial applications.
Its high nickel content provides superior resistance to chloride stress corrosion cracking, while chromium enhances performance in oxidising conditions. The alloy also shows good resistance to carburisation and nitriding environments, with long-term thermal stability up to 1093°C.
We stock Alloy 600 in a variety of product forms, including flanges, seamless pipe, pipe fittings, plate, round bar, round tube, and sheet. These options support a wide range of industrial applications and fabrication requirements.
To explore available sizes and specifications, please use the dropdown menu below and add your chosen items to your enquiry basket.
| % | Ni+Co | Cr | Cu | C | Mn | Si | S | Fe |
|---|---|---|---|---|---|---|---|---|
| Min | 72 | 14 | 0 | 0 | 0 | 0 | 0 | 6 |
| Max | - | 17 | 0.5 | 0.15 | 1 | 0.5 | 0.015 | 10 |
Alloy 600 is valued for its consistent performance under extreme thermal and chemical stress. The following physical and mechanical properties contribute to its versatility:
Alloy 600 (Inconel® 600) has been widely trusted across industry sectors for decades. Its high nickel content delivers resistance to chloride-ion stress corrosion cracking, while its chromium content protects against oxidising environments. Notably, the alloy remains stable under prolonged thermal exposure, nitriding atmospheres, and fluctuating mechanical stress.
It is not recommended for use in environments where red heat and sulphur are present unless stress relieving is conducted. Full stress relief at 982–1010°C for 1 hour is typically advised to reduce cracking risk in caustic environments. Inconel® is a registered trademark of Special Metals Corporation.
| Mechanical & Physical Properties | 21°C | 538°C | 649°C | 760°C | 871°C | 982°C | 1093°C |
|---|---|---|---|---|---|---|---|
| Ultimate Tensile Strength /MPa | 641.2 | 579.2 | 448.2 | 189.6 | 103.4 | 51.7 | - |
| 0.2% Yield Strength /MPa | 255.1 | 196.5 | 182.7 | 117.2 | 62 | 27.6 | - |
| Charpy Impact V-notch /J | 61 | 63.7 | 52.9 | 62.4 | 108.5 | 160 | - |
| Coefficient of Thermal Expansion µm/m⁰C | - | 15.1 | 15.5 | 15.6 | 16.4 | - | 16.7 |
| Thermal Conductivity /kcal/(hr.m.°C) | 12.8 | 19.6 | 21.3 | 19.3 | 23.8 | - | - |
| Modulus of Elasticity / x105 MPa | 2.1 | 1.77 | 1.69 | 1.63 | 1.53 | - | 1.4 |
| Temperature °C | 400°C | 500°C | 580°C | 680°C |
|---|---|---|---|---|
| Alloy 201 | 0.9 | 1.3 | 2.5 | 37.8 |
| Alloy 400 | 1.8 | 5.1 | 17.6 | - |
| Alloy 600 | 1.1 | 2.4 | 5.1 | 66.4 |
Alloy 600 is chosen for its excellent structural integrity and corrosion resistance in elevated temperature environments. Its versatility makes it a preferred choice in numerous industries.
Commonly used in heat exchangers and steam generator tubing, Alloy 600 pipe offers high strength, pressure resistance, and long-term corrosion performance, particularly in the power generation and chemical sectors.
Alloy 600 tubing is ideal for nuclear and chemical processing plants due to its resistance to pitting, stress corrosion cracking, and aggressive chemicals.
Used for furnace components, reactor linings, and other structural parts, Alloy 600 plate provides a strong and corrosion-resistant base material in high-heat environments.
Round bars in Alloy 600 are frequently selected for fixtures, fittings, and support structures requiring workability and resistance to carburising atmospheres.
Alloy 600 is primarily composed of nickel (min. 72%), with chromium (14–17%), iron (6–10%), and smaller amounts of carbon, silicon, and manganese.
No, Alloy 600 is non-magnetic in its annealed condition, making it suitable for applications requiring low magnetic permeability.
It is widely used in high-temperature, corrosive environments — including furnaces, heat exchangers, nuclear reactors, and chlorination systems.
They are the same material. Inconel® 600 is the trademarked name used by Special Metals Corporation for Alloy 600.
Alloy 625 offers higher strength and better performance in marine environments. Read our comparison
Looking for high-quality Alloy 600 suppliers? NeoNickel offers extensive stock, fast turnaround, and precision services. Get a Quote by enquiring with this alloy today or speak with one of our experts.
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