ASTM B163, Monel 400 Pipe, Alloy 400 Pipe, Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes, Seamless Tube, Nickel Alloy Tubes, UNS N02200, UNS N02201, UNS N04400, UNS N06025, UNS N06045, UNS N06600, UNS N06601, UNS N06603, UNS N06686, UNS N06690, UNS N06696, UNS N08120, UNS N08800, UNS N08801, UNS N08810, UNS N08811, UNS N08825, Monel400, Monel 400, 2.4360, Ni68Cu28Fe, FH, Nickel and Nickel Alloy Tubes, Heat Exchanger Tubes, U Bent Tube, Fin Tubes, ASTM B163 UNS N04400 (Monel 400), ASTM B163 UNS N06600 (Inconel 600), ASTM B163 UNS N08800 (Inconel 800), ASTM B163 UNS N08810 (Incoloy 800H), ASTM B163 UNS N08811 (Incoloy 800HT), ASTM B163 UNS N08825 (Incoloy 825), Standard ASTM B163, Heat Exchanger, Shell and Tube Heat Exchanger

ASTM B163 Standard Specification for Seamless Nickel and Nickel Alloy Condenser and Heat Exchanger Tubes

Standard: ASTM B163

Material: UNS N04400
Equivalent Material: Monel 400, 2.4360, Ni68Cu28Fe

Chemistry Composition

Ni, %	Cu, %	Fe, %	Mn, %	C, %	Si, %	S, %
63.0 min	28.0-34.0	2.50 max	2.00 max	0.30 max	0.50 max	0.024 max

Mechanical Properties

Tensile Strength , MPa	Yield Strength, MPa	Elongation, %	Hardness, HRB
483 min	193 min	35 min	-	+A
586 min	379 min	15 min	75 max	SR

Outside Diameter & Tolerance

Outside Diameter, mm	Tolerance, mm
12.7≤OD＜15.9	+0.13/-0
15.9＜OD≤38.1	±0.13
38.1＜OD≤76.2	±0.25

Wall thickness & Tolerance

Outside Diameter, mm	Tolerance, %
Outside Diameter, mm	Average Wall	Minimum Wall
12.7≤OD＜15.9	±12.5	+25.0/-0
15.9＜OD≤38.1	±10.0	+20.0/-0
38.1＜OD≤76.2	±10.0	+22.0/-0

Length: 5800mm; 6000mm; 6096mm; 7315mm; 11800mm; 12000mm; and so on.
Max developed length: 32 meters, also U bending can be offered, each leg length can be 15.24 meters.

Keyword: ASTM B163, Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes, Nickel-copper Alloy Tube, Seamless Tube, Nickel Alloy Tubes, UNS N02200, UNS N02201, UNS N04400, UNS N06025, UNS N06045, UNS N06600, UNS N06601, UNS N06603, UNS N06686, UNS N06690, UNS N06696, UNS N08120, UNS N08800, UNS N08801, UNS N08810, UNS N08811, UNS N08825, Monel 400, Alloy 400

More information about Monel 400

Monel 400, also named as Alloy 400 is a nickel-copper alloy (about 67% Ni – 23% Cu) that is resistant to sea water and steam at high temperatures as well as to salt and caustic solutions. Alloy 400 is a solid solution alloy that can only be hardened by cold working. This nickel alloy exhibits characteristics like good corrosion resistance, good weldability and high strength. A low corrosion rate in rapidly flowing brackish or seawater combined with excellent resistance to stress-corrosion cracking in most freshwaters, and its resistance to a variety of corrosive conditions led to its wide use in marine applications and other non-oxidizing chloride solutions. This nickel alloy is particularly resistant to hydrochloric and hydrofluoric acids when they are de-aerated. As would be expected from its high copper content, alloy 400 is rapidly attacked by nitric acid and ammonia systems.

Monel 400 has great mechanical properties at subzero temperatures, can be used in temperatures up to 1000° F, and its melting point is 2370-2460° F. However, alloy 400 is low in strength in the annealed condition so, a variety of tempers may be used to increase the strength.

The characteristics of Monel 400

- Resistant to seawater and steam at high temperatures
- Excellent resistance to rapidly flowing brackish water or seawater
- Excellent resistance to stress corrosion cracking in most freshwaters
- Particularly resistant to hydrochloric and hydrofluoric acids when they are de-aerated
- Offers some resistance to hydrochloric and sulfuric acids at modest temperatures and concentrations, but is seldom the material of choice for these acids
- Excellent resistance to neutral and alkaline salt
- Resistance to chloride induced stress corrosion cracking
- Good mechanical properties from sub-zero temperatures up to 1020° F
- High resistance to alkalis

Corrosion Resistant of Monel 400

Monel 400 is virtually immune to chloride ion stress corrosion cracking in typical environments. Generally, its corrosion resistance is very good in reducing environments, but poor in oxidizing conditions. It is not useful in oxidizing acids, such as nitric acid and nitrous. Nevertheless, it is resistant to most alkalis, salts, waters, food products, organic substances and atmospheric conditions at normal and elevated temperatures.
This nickel alloy is attacked in sulfur-bearing gases above approximately 700° F and molten sulfur attacks the alloy at temperatures over approximately 500° F.
Monel 400 offers about the same corrosion resistance as nickel but with higher maximum working pressures and temperatures and at a lower cost due to its superior ability to be machined.

The applications of Monel 400

- Marine engineering
- Chemical and hydrocarbon processing equipment
- Gasoline and freshwater tanks
- Crude petroleum stills
- De-aerating heaters
- Boiler feed water heaters and other heat exchangers
- Valves, pumps, shafts, fittings, and fasteners
- Industrial heat exchangers
- Chlorinated solvents
- Crude oil distillation towers

Fabrication with Monel 400

Monel 400 can easily be welded by gas-tungsten arc, gas metal arc or shielded metal arc processes using appropriate filler metals. There is no need for post weld heat treatment, however, thorough cleaning after welding is critical for optimum corrosion resistance, otherwise there is the risk of contamination and embrittlement.
Finished fabrications can be produced to a wide range of mechanical properties when proper control of the amount of hot or cold working and the selection of appropriate thermal treatments is done.
Like most other nickel alloys, Monel 400 is typically tough to machine and will work harden. However, excellent results can e obtained if you make the correct choices for tooling and machining.

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