Inconel 600 contains higher amount of Nickel, Whereas Incoloy 800 contains higher amount of iron. Alloy 600 offers superior resistance to oxidation and heat whereas Alloy 800 known for its resistance in carburization, oxidation, and high-temperature environments

Inconel 600 has higher nickel content than Incoloy 800

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

Alloy 800 exhibits better weldability

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

Nickel 600 can withstand temperature upto 1,093°C

Temperature Resistance of Alloy 800 vs Alloy 600

Alloy 800 offers superior creep and stress rupture at high temperatures as comapred to Alloy 600. Incoloy 800 can withstand up to 1100°C whereas Alloy 600 is suitable for temperature upto 1093°C.

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
Incoloy 800 and Inconel 600 offers superior corrosion resistance and strength

Nickel 600 Vs Nickel 800 Corrosion Resistance

Both Inconel 600 and Nickel 800 exhibit excellent corrosion resistance, but Alloy 600 can withstand acidic environments and Incoloy 800 are knwon for resisting carburisation and oxidation at elevated temperatures. Alloy 600 are widely used in Chemical industry whereas Nickel 800 mostly used in heat furnace applications.

Price difference of Inconel 600 Vs Incoloy 800

Since Alloy 600 has higher nickel content therefore its expensive than Incoloy 800.

Advantages of Incoloy 800 and Inconel 600

Alloy 800 provides high temperature stability and corrosion resistance. It also offers resistance against Oxidation and Carburization. While Alloy 600 is known for its superior oxidation resistance and durability, It can withstand high temperature and acidic media.

Inconel 600 can be used in aggressive enviroments while Alloy 800 widely used in high temperature conditions

How to choose right Alloy for your application

If your project requires high temperature resistance and carburization properties then you should choose Incoloy 800, It has higher creep resistance which makes it suitalbe choice for furnances and heat exchangers. But if its harsh enviroments like acid or chemicals then you should go for Inconel 600 as it provides better corrosion and temperature resistance properties in those enviroments.

Conclusion

Both of them works really well in high temperature and corrosive condition, for heat resistance and structural integrity one should choose Alloy 800, Whereas for corrosion and oxidation resistance you should choose Inconel 600.

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