The characteristics of Inconel Alloy 600
The characteristics of Inconel Alloy 600
Inconel 600 alloy (UNS N06600) is a versatile nickel-chromium-iron alloy designed for excellent high-temperature oxidation and corrosion resistance, operating effectively in a temperature range from low temperatures to 2000°F (1093°C). It features a high nickel content for enhanced resistance to stress corrosion cracking and contains chromium for stable operation in oxidizing environments. This non-magnetic alloy exhibits excellent weldability and machinability and is commonly used in nuclear, chemical, and aerospace applications.
What are the differences between Inconel 600 and Inconel 718?
Inconel 600 offers excellent corrosion resistance and formability, making it suitable for chemical and marine applications. Inconel 718, on the other hand, boasts superior high-temperature strength and creep resistance, making it the preferred material for aerospace and oil and gas applications.
1. Inconel 600's excellent chemical composition and functions
| Inconel 600 | |
| Ni | 72.0 min |
| Cr | 14.0 – 17.0 |
| Fe | 6.0 – 10.0 |
| C | 0.15 max |
| Mn | 1.0 max |
| S | 0.015 max |
| Si | 0.5 max |
| Cu | 0.5 max |
Inconel 600's superior performance stems from its high nickel content (minimum 72%). This chemical composition provides its key advantage: resistance to chloride stress corrosion cracking (SCC).
Nickel (minimum 72%): Provides resistance to alkaline environments and SCC.
Chromium (14-17%): Provides high-temperature oxidation resistance and resistance to sulfide corrosion.
Iron (6-10%): Balances the alloy composition for cost-effective strength.
2. Physical and Thermal Properties (2026 Technical Data)
For engineers designing pressure vessels or furnace components, the thermal stability of Inconel 600 is its most valuable advantage.
| Property |
Metric Units |
|
Density |
8,470 kg/m³ @ 20°C |
|
Melting Point |
1354-1413°C |
|
Electrical Resistivity |
103 micro-ohm . m @ 20°C |
|
Specific Heat |
444 J/kg . °C @ 20°C |
|
Mean Coefficient of Expansion |
10.4 x 10-6 / °C @ 20°C |
|
Thermal Conductivity |
14.9 W / m . °C @ 20°C |
|
Curie Temperature |
-192°C |
|
Tension |
214 GPa @ 20°C |
|
Torsion |
80.8 GPa @ 20°C |
|
Poisson's Ratio |
0.324 @ 20°C |
|
Relative Permeability |
1.010 @ 200 Oe |
Melting Point Range: 2470-2575°F (1354-1413°C).
Thermal Conductivity: Excellent heat transfer properties, making it a key material for heat exchanger tubes.
Oxidation Resistance: Alloy 600 forms a dense oxide scale that resists spalling even at temperatures up to 2000°F (1095°C).
Carburization Resistance: Unlike many alloys, it maintains its integrity in carburizing atmospheres, which is crucial for heat treatment furnaces and rotary kilns.
Available Product Forms
Pipes:
Seamless Pipes (compliant with ASTM B167): Essential material for nuclear steam generator piping and chemical reactor coils.
Bars:
Round Bars (compliant with ASTM B166): Precision-ground bars suitable for high-strength fasteners and pump shafts.
Plates:
Cold-Rolled Plates (compliant with ASTM B168): Suitable for precision gaskets and heat shields.
Hot-Rolled Plates: Suitable for the manufacture of large pressure vessels.
Fits and Fittings:
Welded Pipe Fittings: Elbows, Tees, and Reducers to complete your piping loops.
Custom Flanges: Compliant with ANSI/ASME, DIN, and JIS standards, ensuring strong, leak-proof connections.
3. Inconel 600 Mechanical & Physical Properties
Inconel 600 maintains excellent mechanical properties in both low-temperature environments and the high temperatures of jet engines. It possesses high tensile strength and exceptional toughness, facilitating the machining of various complex shapes.
|
Element |
Inconel 600 |
|
Density |
8.47 g/cm3 |
|
Melting Point |
1413 °C (2580 °F) |
|
Tensile Strength |
Psi – 95,000 , MPa – 655 |
|
Yield Strength (0.2%Offset) |
Psi – 45,000 , MPa – 310 |
|
Elongation |
40 % |
Annealed tensile strength: Approximately 80,000 psi (550 MPa).
Yield strength: Approximately 30,000 psi (205 MPa).
Ductility: High elongation (approximately 45%) enables it to remain stable and less prone to cracking during harsh cold forming processes.
4. Key Performance Characteristics
A. Excellent Oxidation Resistance
Inconel 600 operates over a temperature range from low temperatures to 2000°F (1093°C). It forms a tightly adhering oxide scale, preventing further oxidation, making it an indispensable material for furnace components and heat treatment furnaces.
B. Corrosion Resistance
In addition to its high-temperature resistance, Inconel 600 exhibits excellent corrosion resistance, including:
Dry chlorine and hydrogen chloride: It is one of the few materials capable of withstanding these gases at high temperatures.
Caustic alkalis: It has excellent resistance to sodium hydroxide (caustic soda).
Organic and inorganic acids: It has good resistance to acetic acid and formic acid.
C. Machining Properties
Unlike some special high-temperature alloys that are extremely difficult to machine, Inconel 600 has excellent cold forming and welding properties. Even after prolonged exposure to high temperatures, it remains stable and does not become brittle.
5. Global Market Demand: Buyer's Guide
In my 18 years of export experience, I've observed significant differences in sourcing trends across different regions:
North America (USA/Canada): A strong focus on nuclear and aerospace standards. Our Inconel 600 products typically require compliance with ASTM B166 (bars) or ASTM B167 (seamless tubes).
Europe (Germany/Italy): High demand for pressure vessel (VdTÜV) certification. Compliance with the Pressure Equipment Directive (PED) is often non-negotiable.
Middle East (UAE/Saudi Arabia): Primarily used in natural gas processing and desalination plants. Here, cost-effectiveness and fast MRO (maintenance, repair, and operation) delivery cycles are crucial.
Southeast Asia: Rapidly growing demand from the chemical production industry. Buyers here value comprehensive Material Testing Certificates (MTCs) conforming to EN 10204 3.1.
6. Inconel 600 vs. Inconel 625: Which Should You Choose?
This is the question I get asked most often.
If your primary concern is high-temperature oxidation resistance and resistance to nitriding or carburizing, choose Inconel 600.
If you require higher mechanical strength at extreme temperatures or superior resistance to pitting and crevice corrosion in seawater, choose Inconel 625.
Ready to source Inconel 600 for your next project?
Gnee Steel, a leading supplier of nickel-based alloys, offers the Inconel 600 series, including plates, bars, tubes, and fittings.
Contact us now for a free quote on the Inconel 600
Why Choose Gnee as Your Nickel-Based Alloy Supplier
✅ Over 18 years of export experience, products sold to more than 80 countries
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All stainless steel products are packaged using the following methods:
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About Gnee Steel
Gnee Steel is a professional manufacturer of nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy 800, Incoloy 800H/HT, Incoloy 825, Monel 400, Monel K500, and other high-temperature alloy materials. We specialize in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power generation, automotive, nuclear energy, and other fields, and we can provide customized alloy material solutions according to customer needs. For inquiries about alloy material prices or customized alloy material solutions, please feel free to contact us via email at ss@gneemetal.com for a quote.
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FAQ
Q: What are the material specifications for Inconel 600?
A: Inconel (nickel-chromium-iron) alloy 600 (UNS N06600/W.Nr. 2.4816) is a standard engineering material suitable for applications requiring corrosion and heat resistance. This alloy also possesses excellent mechanical properties, combining high strength with good machinability.
Q: What is the difference between Inconel 600 and Alloy 600?
A: Alloy 600 is non-magnetic, possesses excellent mechanical properties, combining high strength with good machinability, and is easy to weld. Inconel 600 exhibits the typical cold-forming characteristics of chromium-nickel stainless steel.
Q: What is the difference between Inconel 600 and Inconel 718?
A: Inconel 600 performs exceptionally well in terms of corrosion resistance and formability, making it suitable for chemical and marine applications. On the other hand, Inconel 718 possesses excellent high-temperature strength and creep resistance, making it a preferred material for the aerospace and oil and gas industries.
Q: Is Inconel 600 ferromagnetic?
A: Inconel 600 is generally paramagnetic at room temperature; however, it exhibits ferromagnetism at chromium-depleted grain boundaries. This indicates that Inconel 600 can be non-destructively tested using magnetic sensitization techniques.
Q: What are some names for Inconel 600?
A: Inconel 600, Alloy 600, Nickel 600, Vacuum Nickel 600, Iron-Nickel Alloy 600, etc., are common trade names. Iron-chromium Alloy 600. INCONEL 600 Alloy (UNS N06600 W.Nr. 2.4816) is a standard engineering material suitable for applications requiring corrosion resistance and heat resistance.
Q: What is the maximum temperature of Inconel 600? A: 2000°F (1093°C)
A：Inconel 600 alloy (UNS N06600) is a nickel-chromium alloy designed for use in a wide range of environments from low to high temperatures, with a maximum temperature range of 2000°F (1093°C).
