HY-industry technical research/UNS N04400/MONEL 400
-
UNS N04400/MONEL 400 is a single phase solid solution nickel-copper alloy with a density of 8.8 g/cm3. In China, HY-industry has extensive refining experience with Monel alloys(Monel 400 & Monel K500). We can provide customers with plates, belts, wires, rods, flanges, etc.
Material grades and equivalents：
China |
GB/T 5235-2007 |
NCu30 |
U.S.A. |
ASTM B127-2005ASTM B164-2003 |
N04400 |
Special Metals |
MONEL alloy 400 |
|
Japan |
JIS H4551:2000 |
NW4400 |
Germany |
DIN 17743:2002 |
2.4360（NiCu30Fe）2.4361（LC-NiCu30Fe） |
GRADES COMPARISON:
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 |
— |
≤0.50 |
≤0.50 |
Al |
— |
— |
Ti |
— |
≤0.30 |
≤0.30 |
Ti |
— |
— |
Material characteristics
-
has excellent tolerance to neutral and alkaline salts and has long been the standard material for salt production systems.
-
It has excellent corrosion resistance in hydrofluoric acid and fluorine gas media, and is one of a few materials which can be contacted with fluorine, hydrofluoric acid and hydrogen fluoride or a compound thereof.
-
Poor performance in highly oxidizing acids such as nitric acid or nitrous acid. In this environment, high chromium stainless steel should be considered.
-
Monel is more corrosion resistant than copper based alloys in seawater.
-
The maximum temperature for continuous operation in air is generally around 600 ° C. In high temperature steam, the corrosion rate is less than 0.026 mm / a.
-
According to the German VdTÜV material table, it can be used as a pressure vessel at -10~425 °C; in the ASME boiler and pressure vessel specification, the upper temperature limit is 480 °C.
-
The strength in the annealed state is very low, and the strength can be improved by tempering.
-
good processing and welding properties.
Application：
-
Monel 400 alloy is a corrosion-resistant alloy with excellent comprehensive properties. The alloy has excellent corrosion resistance in fluorine gas, hydrochloric acid, sulfuric acid, hydrofluoric acid and their derivatives. The alloy is widely used in marine, chemical and other fields. Typical applications include: pumps and propeller shafts; marine equipment and fasteners; chemical equipment; gasoline and fresh water tanks; crude oil distiller; processing vessels and pipelines; boiler feedwater heaters; Heater.
