Inconel 600 is a nickel-chromium alloy known for its excellent resistance to oxidation and corrosion at high temperatures. The alloy has good mechanical properties and is resistant to corrosion in various environments.
Tesla states that the main battery pack contactors in its Model S use Inconel instead of steel. This allows them to remain resilient under the high temperatures of strong currents. SpaceX uses Inconel in the Merlin engine manifolds that power the Falcon 9 launch vehicle. Inconel is commonly used in applications that require heat and corrosion resistance.
What is inconel 600 material?
Inconel 600 primarily consists of nickel (minimum 72%), substantial amounts of chromium (14-17%), iron (6-10%), and small quantities of other elements such as carbon, manganese, silicon, and copper.
Equivalent Materials for Inconel 600
| Standard/Designation | Equivalent Material | Description |
| UNS | N06600 | Unified Numbering System designation for Inconel 600 |
| Werkstoff Number | 2.4816 | German DIN standard number for Inconel 600 |
| EN | NiCr15Fe8 | European standard designation |
| ASTM | B166, B168, B163, B167, B564 | ASTM standards covering different product forms of Inconel 600 |
| JIS | NCF 600 | Japanese Industrial Standard designation |
| AFNOR | NC15Fe | French AFNOR designation |
| BS | NA14 | British Standard designation |
| SAE | AMS 5540, AMS 5665, AMS 5687 | Aerospace material specifications |
| ISO | NiCr15Fe8 | International Standards Organization designation |
Inconel 600 Chemical Composition
| Element | Composition (%) |
| Nickel (Ni) | Min. 72.0 |
| Chromium (Cr) | 14.0 – 17.0 |
| Iron (Fe) | 6.0 – 10.0 |
| Carbon (C) | Max. 0.15 |
| Manganese (Mn) | Max. 1.0 |
| Silicon (Si) | Max. 0.5 |
| Copper (Cu) | Max. 0.5 |
| Sulfur (S) | Max. 0.015 |
Inconel 600 Physical Properties
| Density | 8.47 g/cm³ (0.306 lb/in³) |
| Melting Range | 1354–1413°C (2470–2575°F) |
| Thermal Conductivity (at 20°C) | 14.8 W/m·K |
| Thermal Conductivity (at 500°C) | 21.5 W/m·K |
| Specific Heat Capacity (at 20°C) | 427 J/kg·K |
| Electrical Resistivity (at 20°C) | 1.03 µΩ·m |
| Thermal Expansion Coefficient | |
| – 20°C to 100°C | 13.3 x 10⁻⁶/°C |
| – 20°C to 500°C | 14.6 x 10⁻⁶/°C |
| Hardness | Typically around 85 HRB (Rockwell B) |
| Additional Characteristics | |
| Creep and Rupture Strength | Good at high temperatures |
| Oxidation Resistance | Excellent up to 1093°C (2000°F) |
| Corrosion Resistance | Good in various corrosive environments, especially chloride-ion and sulfur compounds |
Inconel 600 Tensile Properties
| Nominal room-temperature tensile-property ranges of material in standard forms and conditions are given in Table. 【1】 | ||||||
| Fom and Conditlon | Tensile Strength |
Yield Strength (0.2%Offset) |
Eongation,% | Hardness,Rockwell | ||
| ksi | MPa | ksi | MPa | |||
| Rod and Bar | ||||||
| Cold-Drawn | ||||||
| Annealed | 80-100 | 550-690 | 25-50 | 170-345 | 55-35 | 65-85B |
| As-Drawn | 105-150 | 725-1035 | 80-125 | 550-860 | 30-10 | 90B-300 |
| Hot-Finished | ||||||
| Annealed | 80-100 | 550-690 | 30-50 | 205-345 | 55-35 | 65-85B |
| Hot-Finished | 85-120 | 585-830 | 35-90 | 240-620 | 50-30 | 75-95B |
| Plate | ||||||
| Hot-Rolled | ||||||
| Annealed | 80-105 | 550-725 | 30-50 | 205-345 | 55-35 | 65-85B |
| As-Rolled | 85-110 | 580-760 | 35-65 | 240-450 | 50-30 | 80-95B |
| Sheet | ||||||
| Cold-Rolled | ||||||
| Annealed | 80-100 | 550-690 | 30-45 | 205-310 | 55-35 | 88B max. |
| Hard | 120-150 | 830-1035 | 90-125 | 620-860 | 15-2 | 24C min. |
| Strip | ||||||
| Cold-Rolled | ||||||
| Annealed | 80-100 | 550-690 | 30-45 | 205-310 | 55-35 | 84B max |
| Spring Temper | 145-170 | 1000-1170 | 120-160 | 830-1100 | 10-2 | 30C min. |
| Tube and Pipe | ||||||
| Hot-Finished | ||||||
| Hot-Finished | 75-100 | 520-690 | 25-50 | 170-345 | 55-35 | |
| Annealed | 75-100 | 520-690 | 25-50 | 170-345 | 55-35 | |
| Cold-Drawn | ||||||
| Annealed | 80-100 | 550-690 | 25-50 | 170-345 | 55-35 | 88B max. |
| Wire【2】 | ||||||
| Cold-Drawn | ||||||
| Annealed | 80-120 | 550-830 | 35-75 | 240-520 | 45-20 | |
| No.1 Temper | 105-135 | 725-930 | 70-105 | 480-725 | 35-15 | |
| Spring Temper | 170-220 | 1170-1520 | 150-210 | 1035-1450 | 5-2 | |
【1】Values shown are composites for various product sizes and therefore are not suitable for specification purposes 【2】Properties shown are for sizes 0.0625- to 0.250-in. (1.6 to 6.4 mm) dia. Properties for other sizes may vary from these. |
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Inconel 600 VS Inconel 601
| Feature | Inconel 600 | Inconel 601 |
| Temperature Capability | Effective up to around 1093°C (2000°F) | Can withstand temperatures up to 1204°C (2200°F) |
| Corrosion Resistance | Good resistance to oxidation and corrosion; good resistance to chloride-ion stress-corrosion cracking | Superior resistance to oxidation and carburization; suitable for severe oxidation or carburization environments |
| Applications | Commonly used in chemical processing and aerospace applications | Preferred for high-temperature furnace components and environments with severe oxidation or carburization |
| Strength | Good strength at high temperatures but may exhibit work hardening | Generally has better creep and rupture strength at high temperatures |
Application of Inconel 600
Inconel 600 is resistant to high-temperature corrosion because of its high nickel and chromium content and the stable oxide layer it forms at high temperatures. This makes it particularly well-suited for applications in chemical processing, aerospace, and nuclear reactors that require high temperature and corrosion resistance.
Inconel 600 can also be used to manufacture connectors for cable assemblies and wire harnesses. This alloy provides good mechanical strength and durability, ensuring connector reliability under harsh conditions.
Inconel 600 pipe
Inconel 600 pipe fittings
Inconel 600 flanges
Inconel 600 fasteners
Inconel 600 plate
Inconel 600 steel bar
Summary
SSM offers high-quality Inconel 600 alloy products designed for use in high-temperature and corrosive environments. We maintain an extensive inventory and provide professional technical support to ensure that we meet our customers’ needs. Feel free to consult with us and make a purchase to learn more about Inconel 600 and its application to your project.
Related resource references:
https://en.wikipedia.org/wiki/Inconel
https://www.specialmetals.com/documents/technical-bulletins/inconel/inconel-alloy-600.pdf
