Inconel 600 (UNS N06600

Inconel 600 corrosion resistance overview:

Inconel600 alloy is resistant to various corrosive media. The composition of chromium makes this alloy have better corrosion resistance under oxidation conditions than nickel 99.2 (alloy 200) and nickel 99.2 (alloy 201, low carbon). At the same time, the higher nickel content makes the alloy have good corrosion resistance in reducing conditions and alkaline solutions, and can effectively prevent chloride-iron stress corrosion cracking. Inconel600 alloy has good corrosion resistance in organic acids such as acetic acid, acetic acid, formic acid, stearic acid, and medium corrosion resistance in inorganic acids. High purity water used in nuclear reactors for one and two cycles has excellent corrosion resistance. Inconel600 is particularly outstanding in its ability to resist the corrosion of dry chlorine and hydrogen chloride, with an application temperature of 650 ° C. At high temperatures, the alloys in the annealed and solution-treated state have good resistance to oxidation spalling and high strength in air. The alloy can also resist ammonia and nitriding and carburizing atmospheres, but when the redox conditions are changed alternately, the alloy will be corroded by some oxidizing media (such as green death fluid)

 

Inconel 600 chemical composition:

%	Ni	Cr	Fe	C	Mn	Si	Cu	P	S
Min.	72	14	6
Max.		17	10	0.15	1.0	0.5	0.5	0.015	0.015

 

Alloy% nickel chromium iron carbon manganese silicon copper phosphorus sulfur

600 minimum 72 14 6

Maximum 17 10 0.15 1 0.5 0.5 0.015 0.015

 

Inconel 600 physical properties:

Density	8.4 g/cm3
Melting point	1370-1425 ℃

 

 

The minimum value of the mechanical properties of Inconel 600 alloy at room temperature:

Alloy	tensile strength Rm N/mm2	yield strength RP0.2N/mm2	Elongation A5 %	Brinell hardness HB
Annealing treatment	550	240	30	≤195
Solution treatment	500	180	35	≤185

 

Inconel 600 alloy has the following characteristics:

1. Good resistance to reduction, oxidation, and corrosion of nitriding media

2. Good stress corrosion cracking resistance at room temperature and high temperature

3. Good resistance to corrosion by dry chlorine and hydrogen chloride gas

4. Good mechanical properties at sub-zero, room temperature and high temperature

5. It has good creep rupture strength and is recommended to be used in a working environment above 700 ° C.

 

Inconel 600 application areas are:

1. Thermowell in an aggressive atmosphere

2. Vinyl chloride monomer production: resistant to chlorine, hydrogen chloride, oxidation and carbonation corrosion

3. Oxidation of uranium to hexafluoride: resistance to hydrogen fluoride corrosion

4. Production and use of corrosive alkali metals, especially the environment where sulfides are used

5. Production of titanium dioxide by the chlorine gas method

6. Production of organic or inorganic chlorides and fluorides: resistance to corrosion by chlorine and fluorine gas

7. Nuclear reactors

8. Curved flasks and components in heat treatment furnaces, especially in carbonized and nitriding atmospheres