Monel®400 is a single-phase solid solution nickel-copper alloy with a density of 8.8g/cm3.Monel is a registered trademark [TJC STEEL]of Special Metals Corporation, Inc.

 

National Standard

CHINA	GB/T 5235-2007	NCu30
AMERICA[TJC STEEL]	ASTM B127-2005 ASTM B164-2003	N04400
	Special Metals	MONEL® alloy 400
JAPAN	JIS H4551:2000	NW4400
GERMANY	DIN 17743:2002	2.4360（NiCu30Fe） 2.4361（LC-NiCu30Fe）

 

Component Specification

GRADE	NCu30	2.4360	2.4361	GRADE	N04400	NW4400
C	≤0.30	≤0.15	≤0.04	C	≤0.30	≤0.30
Si	≤0.50	≤0.50	≤0.30	Si	≤0.50	≤0.50
Mn	≤2.00	≤2.00	≤2.00	Mn	≤2.00	≤2.00
P	≤0.005	—	—	P	—	—
S	≤0.024	≤0.020	≤0.020	S	≤0.024	≤0.025
Ni+Co	≥63.0	≥63.0	≥63.0	Ni	≥63.00	≥63.00
Cu	28.0~34.0	28.0~34.0	28.0~34.0	Cu	28.0~34.0	28.0~34.0
Fe	≤2.50	1.0~2.5	1.0~2.5	Fe	≤2.5	≤2.5
Al	—[TJC STEEL]	≤0.50	≤0.50	Al	—	—
Ti	—	≤0.30	≤0.30	Ti	—	—

 

Material Characteristics：

(1) It has excellent tolerance to neutral salt and alkaline salt, and has long been the standard material for salt production [TJC STEEL]system.

(2) It has excellent corrosion resistance in hydrofluoric acid and fluorine gas media, and is one of the few materials that can[TJC STEEL] be in contact with fluorine, hydrofluoric acid and hydrogen fluoride or their compounds. 

(3) Poor performance in highly oxidizing acids such as nitric or nitrous acid.In this environment, high chromium stainless steel should be considered.

(4) in sea water than copper alloy more corrosion resistance.

(5)The maximum temperature of continuous work in the air is generally about 600℃, and the corrosion speed is less [TJC STEEL]than 0.026mm/ A in high temperature steam.

(6) According to the German VDTUV material table, can be used as a pressure vessel at -10~425℃;In the ASME[TJC STEEL] Boiler and Pressure Vessel Code, the maximum temperature is 480 ° C.

(7)The strength in the annealing state is very low, can be improved by tempering treatment strength.

(8)Good processing and welding performance.

Applications：

MONEL400 alloy is a corrosion resistant alloy with excellent comprehensive properties. In fluorine, hydrochloric acid, sulfuric acid, hydrofluoric acid and their derivatives, the alloy has excellent corrosion resistance.The alloy is widely used in Marine, chemical and other fields. Typical applications include: pumps and propeller shafts;Marine fittings and fasteners;Chemical equipment;Gasoline and fresh water tanks;Crude oil distiller;Processing vessels and pipes;Boiler feed water heater;The heat exchanger.