Incoloy 800 and Inconel 600: Different Grades and Their Respective Advantages
Incoloy 800 and Inconel 600: Different Grades and Their Respective Advantages
Both Incoloy 800 and Inconel 600 are nickel-based alloys used in high-temperature environments, but Inconel 600 performs exceptionally well in acidic/chlorine-containing environments and possesses superior strength (e.g., in the nuclear industry), while Incoloy 800 (and its grades 800H/HT) exhibits better creep/rupture strength in carburizing/oxidizing furnace environments and is more cost-effective due to its higher iron content. Specifically, 800H/HT is designed with controlled carbon/titanium/aluminum content to achieve superior high-temperature strength.
What is the maximum operating temperature of Inconel 600?
The hot working temperature range for Inconel 600 alloy is 1600–2250°F (870–1230°C). Heavy working requires temperatures in the range of 1900–2250°F (1040–1230°C), while light working can be performed at temperatures as low as 1600°F (870°C).
1. What are Incoloy 800 and Inconel 600?
Incoloy 800
Incoloy 800 is a nickel-iron-chromium alloy known for its excellent oxidation resistance, carburization resistance, and high-temperature performance. This alloy is particularly noted for its strength and stability at high temperatures, making it ideal for use in industries such as chemical processing, heat exchangers, and nuclear reactors.
Inconel 600
Inconel 600 is a nickel-chromium alloy with excellent heat resistance and oxidation resistance. It is known for its high resistance to oxidation and carburization, making it particularly suitable for high-temperature applications. Inconel 600 is commonly used in applications requiring resistance to high-temperature oxidation and carburization, such as gas turbines, aerospace components, and chemical processing equipment.
2.Grade and Alloy Comparison
Both Incoloy 800 and Inconel 600 have various grades to meet different specific needs. Below is a comparison of some of their main grades.
Incoloy 800 Grades
Incoloy 800H: This grade is designed for high-temperature applications, offering higher strength and better creep resistance.
Incoloy 800HT: It exhibits excellent creep and stress rupture properties at high temperatures, making it ideal for more demanding conditions.
Incoloy 800: The standard grade offers good oxidation and carburization resistance, and good strength at both high and low temperatures.
Inconel 600 Grades
Inconel 600: This standard grade is heat-resistant, oxidation-resistant, and carburization-resistant, suitable for many high-temperature applications.
Inconel 601: Known for its superior oxidation resistance, it is ideal for applications requiring high-temperature stability and corrosion resistance.
Inconel 625: This grade offers higher fatigue, thermal fatigue, and thermal shock resistance.
Chemical composition of Inconel 600 and Incoloy 800
| Grade | Ni | Cr | C | S | Si | Mn | Cu | Fe | Al | Ti |
|---|---|---|---|---|---|---|---|---|---|---|
| Inconel 600 | 72.00 min | 14.00 – 17.00 | 0.15 max | 0.015max | 0.50 max | 1.00 max | 0.50 max | 6.00 – 10.00 | – | – |
| Incoloy 800 | 30.00 – 35.00 | 19.00 – 23.00 | 0.10 max | 0.015 max | 1.00 max | 1.50 max | 0.75 max | 39.50 min | 0.15 – 0.60 | 0.15 – 0.60 |
Inconel 600 Vs Incoloy 800 Mechanical properties
| Element | Tensile Strength | Yield Strength (0.2%Offset) | Melting Point | Density | Elongation |
|---|---|---|---|---|---|
| Inconel 600 | Psi – 95,000 , MPa – 655 | Psi – 45,000 , MPa – 310 | 1413 °C (2580 °F) | 8.47 g/cm3 | 0.4 |
| Incoloy 800 | Psi – 75,000 , MPa – 520 | Psi – 30,000 , MPa – 205 | 1385 °C (2525 °F) | 7.94 g/cm3 | 0.3 |
Equivalent grades of Alloy 600 Vs Incoloy 800
| STANDARD | UNS | DIN | JIS | AFNOR | GOST | BS | EN | OR |
|---|---|---|---|---|---|---|---|---|
| Inconel 600 | N06600 | 2.4816 | NCF 600 | NC15FE11M | МНЖМц 28-2,5-1,5 | NA 13 | NiCr15Fe | – |
| Incoloy 800 | N08800 | 1.4876 | NCF 800 | Z8NC32-21 | ЭИ670 | NA 15 | X10NiCrAlTi32-20 | Xh22T |
3.Comparison of High-Temperature Performance between Alloy 800 and Alloy 600
Compared to Alloy 600, Alloy 800 exhibits superior creep resistance and stress rupture resistance at high temperatures. Incoloy 800 alloy can withstand temperatures up to 1100°C, while Alloy 600 is suitable for temperatures up to 1093°C.
4. Advantages of Incoloy 800
Excellent oxidation and carburization resistance: Incoloy 800 exhibits excellent resistance to oxidation and carburization, making it suitable for chemical processing and heat exchangers.
High-temperature stability: It maintains its strength even at high temperatures, which is crucial for industries such as petrochemicals and nuclear power.
Corrosion resistance: It is resistant to corrosion in both oxidizing and reducing environments, ensuring durability under harsh conditions.
5. Advantages of Inconel 600
Excellent oxidation resistance: Inconel 600 exhibits excellent oxidation resistance at high temperatures, making it suitable for gas turbines and other high-temperature equipment.
Durability under high-temperature stress: Inconel 600 has high tensile strength and fracture resistance, making it highly durable in critical industrial processes.
Versatility in harsh environments: This alloy also performs well in environments involving oxidation, carburization, and chemical corrosion.
Why Choose Gnee as Your Nickel-Based Alloy Supplier
✅ Over 18 years of export experience, products sold to more than 80 countries
✅ Certified by ISO, SGS, and BV
✅ Global inventory of Inconel, Hastelloy, Incoloy, and Monel alloy tubing, plates, and bars
✅ Custom processing services available – including cutting, polishing, CNC machining, and packaging
✅ Fast delivery within 7-15 days, supported by global logistics partners
📦 Packaging and Shipping
All stainless steel products are packaged using the following methods:
Wooden pallets or crates
Moisture-proof packaging
Labels with furnace number, standard, and size labels
Shipped worldwide by sea, air, or express
Gnee Steel also supplies custom Inconel 600 products in various sizes and specifications. Please send us your drawings for a quote!
