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Monel400 corrosion resistant alloy

Monel400 is a kind of corrosion-resistant alloy with the largest amount and excellent comprehensive performance. This alloy has excellent corrosion resistance in hydrofluoric acid and fluorine gas medium, and also has excellent corrosion resistance to concentrated lye. At the same time, it is resistant to corrosion of neutral solution, water, sea water, atmosphere, organic compounds, etc. An important feature of this alloy is that it generally does not produce stress corrosion cracking and has good cutting performance.

Classification:

Product Details


Chemical Composition	Alloy	%	Nickel Ni		Copper Cu		Iron Fe	Carbon C		Mammoth Mn	Silicon Si		Sulfur P
	400	Min.	63		28		-	-		-	-
		Max.	-		34		2.5	0.3		2	0.5		0.024
Physical Characteristics	Density 8.83g/cm³
	Melting point 1300-1390℃
Minimum values of the mechanical properties of alloys at room temperature	Typical mechanical properties			Tensile strength Rm N/mm²		Yield strength RP0.2 N/mm²			Elongation A5%			Test temperature Test ℃
	solution treatment			480		170			35			Normal temperature
Characteristic	Monel400 is a kind of corrosion-resistant alloy with the largest amount and excellent comprehensive performance. This alloy has excellent corrosion resistance in hydrofluoric acid and fluorine gas medium, and also has excellent corrosion resistance to concentrated lye. At the same time, it is resistant to corrosion of neutral solution, water, sea water, atmosphere, organic compounds, etc. An important feature of this alloy is that it generally does not produce stress corrosion cracking and has good cutting performance.

Characteristics

Monel400 is a kind of the largest amount, the use of a wide range of excellent comprehensive performance of corrosion-resistant alloys. This alloy has excellent corrosion resistance in hydrofluoric acid and fluorine gas medium, and also has excellent corrosion resistance to concentrated lye. At the same time resistant to neutral solution, water, seawater atmospheric organic compounds such as corrosion. An important feature of the alloy is that it does not produce stress corrosion cracking and good cutting performance.

Corrosion resistance

Monel400 alloy has excellent corrosion resistance in fluorine gas, hydrochloric acid, sulfuric acid, hydrofluoric acid and their species. At the same time, it is more corrosion resistant than copper base alloy in seawater. Monel400 Monel400, which has corrosion resistance in the concentration of 85% of the magnetic quotient, is one of the few important materials that can withstand hydrofluoric acid. Water corrosion: under most water corrosion conditions, Monel400 alloys not only have excellent corrosion resistance, but also rarely find pitting corrosion and stress corrosion. the corrosion rate is less than 0.025mm/a. high temperature corrosion: the highest temperature for continuous operation of Monel400 in air is generally about 600°C. in high temperature steam, the corrosion rate is less than 0.026mm/a. due to the high nickel content of Monel400 alloys, therefore, it can resist corrosion under anhydrous ammonia and ammoniated conditions below 585°C.

Scope of application

Monel400 alloys are versatile materials that can be used in many industrial applications:

1. Seamless water pipes and steam pipes in power plants;

2. Seawater exchanger and evaporator;

3. Sulfuric acid and hydrochloric acid environment;

4. Distillation of crude oil;

5. Pump shaft and propeller of equipment used in seawater;

6. Equipment used in the nuclear industry for the manufacture of uranium extraction and isotope separation 7. Pumps and valves used in the manufacture of equipment for the production of hydrochloric acid.

Key words:

Monel400 corrosion resistant alloy

MonelK-500 alloy

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