Sep 28, 2025 Leave a message

ASTM B165 UNS N04400 For Chemical And Industrial Applications

 
ASTM B165 UNS N04400 for chemical and industrial applications

ASTM B165 UNS N04400 for chemical and industrial applications

 

ASTM B165 UNS N04400 is a nickel-copper alloy pipe, also known as Monel 400 pipe, for cold-worked seamless tubing. It is a solid solution alloy that can only be strengthened by cold working and is widely used in chemical and industrial applications due to its high strength and excellent corrosion resistance.

What is ASTM B564 UNS N04400 material?

 

ASTM B564 UNS N04400 flanges, also known as Monel alloy 400, are a nickel-based alloy with a certain amount of copper added. ASTM B564 UNS N04400 flanges typically exhibit high tensile strength over a wide temperature range, up to 1000 degrees Fahrenheit (approximately 477 degrees Celsius).

UNS N04400 material

Features
Corrosion Resistance: Excellent corrosion resistance in a wide range of corrosive environments, including seawater, brine, hydrofluoric acid, sulfuric acid, and alkaline solutions.
Strength and Toughness: High strength and toughness are maintained over a wide temperature range, from sub-zero to 538°C (1000°F). Mechanical properties depend on the material condition (e.g., annealed or stress relieved).
Weldability: Good weldability is achieved, but proper cleaning is required before welding to prevent contamination and brittleness.
Fabrication: Fabrication is possible through both cold and hot working processes. Cold working is the only method for increasing strength and hardness.

 

Physical Properties:
Density: 8.8 g/cm³
Melting Point: 1300–1350°C (2370–2460°F)

 

ASTM B165 N04400 Nickel Alloy Pipe Chemical composition

element nickel copper iron manganese carbon silicon sulfur
Content(%) 63.0min 28min~34max 2.5max 2.0max 0.3max 0.5max 0.024max

 

Pressure Rating of ASTM B165 N04400 Nickel Alloy Pipe

Monel 400 Pipe O.D.
(in.)
Wall Thickness of Monel 400 Pipe (inches)
0.0035 0.0028 0.0049 0.0083 0.0095 0.0065 0.0109 0.0120
1/4 4800 3700 7000     9500    
1/8 10100 7900            
3/8 3100   4400     6100    
5/16 3700   5400     7300    
3/4     2200 4000 4600 3000    
1/2 2300   3200     4400    
1       2900 3400 2200 3900 4300


ASTM B165 N04400 Nickel Alloy Pipe Mechanical Properties

Shape Tensile strength

Yield strength

(0.2% Offset)

Elongation

(%)

Hardness      
  ksi MPa  

Brinell

(3000-kg)

Rockwell B    
stick 70-110 480-760 25-85 170-585 50-5 110min 60min
plate 70-95 482-655 28-75 193-517 50-30 110-215 60-96
sheet 70-120 482-827 30-110 207-758 45-2   65min
belt 70-140 482-965 25-130 172-896 50-2   68min
Seamless pipe 70-130 482-896 25-110 172-758 50-3   100max
Cold pull wire 70-180 482-1241 30-170 207-1172 45-2    

 

Industrial and Chemical Applications
UNS N04400 is suitable for applications requiring high performance in corrosive environments. Typical applications include:
Marine engineering:
Pump shafts and propeller shafts
Valves, pumps, and piping systems for seawater service
Marine fixtures and fasteners
Chemical processing:
Chemical reactors, process vessels, and piping
Equipment for producing chlorinated hydrocarbons
Uranium refining and isotope separation units for nuclear fuel production
Oil and gas:
Crude oil stills
Hydrocarbon processing equipment
Heat exchangers:
Boiler feedwater heaters
Brine heaters and evaporator bodies for desalination plants
Heat exchangers

Gnee Steel

 

About Gnee Steel

Gnee Steel specializes in the production and sale of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. Gnee Steel's products are widely used in aerospace, chemical, electric power, automotive, and nuclear energy applications. We also offer customized alloy solutions tailored to customer needs. For alloy pricing inquiries or customized alloy solutions, please contact us for a quote at ss@gneesteel.com.

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