Monel 400 Alloy Bar / Rod / Wire / Pipe With Corrosion Protection
Product Description
Monel 400/Alloy 400/Nickel 400/UNS N04400/Wr.No.2.4360
Monel 400(UNS N04400/2.4360) is a nickel-copper alloy with high strength and excellent resistance to a range of media including seawater, dilute hydrofluoric and sulfuric acids, and alkalies.
Monel 400 containing about 30-33% copper in a nickel matrix has many similar characteristics of commercially pure nickel, while improving upon many others. Addition of some iron significantly improves the resistance to cavitation and erosion in condenser tube applications. The main uses of Monel 400 are under conditions of high flow velocity and erosion as in propeller shafts, propellers, pump-impeller blades, casings, condenser tubes, and heat exchanger tubes. Corrosion rate in moving seawater is generally less than 0.025 mm/year. The alloy can pit in stagnant seawater, however, the rate of attack is considerably less than in commercially pure alloy 200. Due to its high nickel content (approx. 65%) the alloy is generally immune to chloride stress corrosion cracking. The general corrosion resistance of Monel 400 in nonoxidizing mineral acids is better compared to nickel. However, it suffers from the same weakness of exhibiting very poor corrosion resistance to oxidizing media such as ferric chloride, cupric chloride, wet chlorine, chromic acid, sulfur dioxide, or ammonia. In unaerated dilute hydrochloric and sulfuric acid solution the alloy has useful resistance up to concentrations of 15% at room temperature and up to 2% at somewhat higher temperature, not exceeding 50°C. Due to this specific characteristic, Monel 400 produced by NiWire is also used in processes where chlorinated solvents may form hydrochloric acid due to hydrolysis, which would cause failure in standard stainless steel.
Monel 400 possesses good corrosion resistance at ambient temperatures to all HF concentration in the absence of air. Aerated solutions and higher temperature increase the corrosion rate. The alloy is susceptible to stress corrosion cracking in moist aerated hydrofluoric or hydrofluorosilic acid vapor. This can be minimized by deaeration of the environments or by stress relieving anneal of the component in question.
Typical applications are valve and pump parts, propeller shafts, marine fixtures and fasteners, electronic components, chemical processing equipment, gasoline and freshwater tanks, petroleum processing equipment, boiler feedwater heaters and other heat exchangers
Chemical Composition
| Grade |
Ni% |
Cu% |
Fe% |
C% |
Mn% |
C% |
Si% |
S% |
| Monel 400 |
Min 63 |
28-34 |
Max 2.5 |
Max 0.3 |
Max 2.0 |
Max 0.05 |
Max 0.5 |
Max 0.024 |
Specifications
| Grade |
UNS |
Werkstoff Nr. |
| Monel 400 |
N04400 |
2.4360 |
Physical Properties
| Grade |
Density |
Melting Point |
| Monel 400 |
8.83 g/cm3 |
1300°C-1390°C |
Mechanical Properties
| Alloy |
Tensile Strength |
Yield Strength |
Elongation |
| Monel 400 |
480 N/mm² |
170 N/mm² |
35% |
Our Production Standard
| Standard |
Bar |
Forging |
Pipe/Tube |
Sheet/Strip |
Wire |
Fittings |
| ASTM |
ASTM B164 |
ASTM B564 |
ASTM B165/730 |
ASTM B127 |
ASTM B164 |
ASTM B366 |
Size Range
Monel 400 wire, bar, rod, strip, forging, plate, sheet, tube, fastener and other standard forms are available.
Shangahi Tankii Alloy Material Co., Ltd. is a manufacturer of various alloy wire and stainless steel with many years experience. Monel 400 Alloy is a kind of corrosion-resistant alloy. We can supply a full range of this material to fit your requirements.
Monel 400 Physical Properties
Density |
8.83 g/cm³ |
Melting point |
1300-1390 °C |
Monel 400 Chemical Composition
CHEMICAL COMPOSITION % |
C |
Cu |
Ni |
Fe |
Mn |
Si |
S |
≤0.30 |
28.034.0 |
≥63.0 |
≤2.5 |
≤2.0 |
≤0.5 |
≤0.024 |
Monel 400 Usage
Mainly used in chemical, petrochemical, oil exploration, nuclear industry,
electronic industry and other fields.
Monel 400 Corrosion resistance
Monel 400 alloy in the fluoride gas, hydrochloric acid, sulfuric acid and their derivatives have a very good corrosion resistance property, and possess better corrosion resistance more than the copper alloy in the sea water. Acid medium: Monel 400 has corrosion resistance in less than 85% consistency of sulfuric acid. Monel 400 is an important material that resistant to . Water corrosion: Monel 400 alloy in most corrosion cases of water, not only excellent corrosion resistance, but also less pitting, stress corrosion, the corrosion rate less than 0.025mm / a. High temperature corrosion: Monel 400 for the work of the highest temperature at about 600 °C in general in the air, in the high temperature steam, the corrosion rate less than 0.026mm / a. Ammonia: Monel 400 can be resistant to an hydrous ammonia and aminate conditions corrosion below 585 °C due to the high nickel.
Monel 400 Application field
Monel 400 alloy is a multi-purpose material in many industrial applications:
1. Seamless water pipe in the power factory
2. Sea-water exchanger and evaporator
3. Sulfuric acid and hydrochloric acid environment
4. Crude distillation
5. Sea-water in the use of equipment and propeller shaft
7. Manufacturing hydrochloric acid equipment used in the production of pump and valve
Monel 400 Standard
Material |
Sheet/plate |
Round bar |
Welded Pipe/Tube |
Seamless Pipe/Tube |
Forgings |
Alloy 400/Monel 400
/UNS N04400/2.4360 |
ASTM B127 |
ASTM B164 |
ASTM B725
ASTM B730 |
ASTM B165
ASTM B163 |
ASTMB564
|
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