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Monel 400 Seamless Pipe | ASTM B165 UNS N04400 Seamless Pipes

Monel 400 Seamless Pipe is a nickel-copper alloy pipe manufactured according to ASTM B165 UNS N04400 specifications and widely used in marine, chemical, and offshore industries due to its exceptional corrosion resistance and mechanical strength. These seamless pipes are produced without welded joints, providing superior structural integrity and high pressure resistance in demanding environments. ASTM B165 UNS N04400 Seamless Pipes, also known as Alloy 400 Seamless Pipes, offer excellent resistance to seawater, hydrofluoric acid, and alkaline solutions, making them an ideal material for heat exchangers, chemical processing equipment, and offshore piping systems.

Manufacturer and Supplier of ASTM B165 UNS N04400 Seamless Pipes

We are a leading Manufacturer of Alloy 400 Seamless Pipe supplying high-quality Monel Alloy 400 Seamless Pipe in India for various industrial sectors. Our seamless pipes are manufactured using premium nickel-copper alloy raw materials and undergo strict quality inspection to ensure excellent durability, corrosion resistance, and dimensional accuracy.

Our inventory includes a wide range of ASTM B165 400 Monel Seamless Pipe, 2.4360 Monel 400 Seamless Pipe, and DIN 2.4375 Seamless Pipe products designed to meet international standards such as ASTM, ASME, and DIN.

Industries worldwide rely on UNS N04400 Hot Finished Seamless Pipe products for applications requiring resistance to aggressive environments and high mechanical stress.

What is ASTM B165 UNS N04400 Seamless Pipe?


ASTM B165 UNS N04400 Seamless Pipe is a corrosion-resistant nickel-copper alloy pipe manufactured according to ASTM B165 specifications. The alloy consists primarily of nickel and copper with small amounts of iron, manganese, carbon, and silicon.

The seamless manufacturing process ensures uniform strength and eliminates weld seams, making the pipe suitable for high-pressure and high-temperature environments.

Key characteristics include:

  •   High resistance to seawater corrosion
  •   Excellent mechanical strength
  •   Resistance to hydrofluoric acid and alkalis
  •   Good thermal conductivity
  •   Superior durability in marine environments

Table of Content


Key Features of Monel Alloy 400 Seamless Pipe


  •   Excellent Corrosion Resistance: Monel 400 alloy offers superior resistance to seawater corrosion, making ASTM B165 UNS N04400 Seamless Pipes ideal for marine and offshore applications.
  •   High Mechanical Strength: The seamless construction provides exceptional structural integrity and allows Alloy 400 Seamless Pipe to withstand high pressure and temperature conditions.
  •   Thermal Stability: UNS N04400 Hot Finished Seamless Pipe maintains strength across a wide temperature range.
  •   Good Fabrication Properties: Despite its strength, 2.4360 Monel 400 Seamless Pipe can be easily machined and fabricated.

Manufacturing Process of ASTM B165 UNS N04400 Seamless Pipes


The manufacturing of Monel 400 Seamless Pipe involves several advanced metallurgical processes:

  •   Raw material melting and alloy preparation
  •   Hot piercing of billets to form hollow tubes
  •   Hot rolling and cold drawing for dimensional accuracy
  •   Heat treatment and annealing
  •   Non-destructive testing and inspection

These processes ensure that b165 uns n04400 pipes meet strict international quality standards.

ASTM B165 UNS N04400 Seamless Pipes Specifications

Specification

Specification

Details

ASTM B165 / ASME SB165
Material Grade
Monel 400
UNS Number
N04400
DIN Number
2.4360 / 2.4375
Pipe Type
Seamless
Manufacturing Process
Hot Finished / Cold Drawn
Outer Diameter
6 mm – 610 mm
Wall Thickness
SCH 10 to SCH XXS
Length
Single Random, Double Random, Custom Length

Mechanical Properties of ASTM B165 400 Monel Seamless Pipe


Typical Values for ASTM A210 Grade A1 Economizer Tubes

PropertyValue
Tensile Strength480 MPa
Yield Strength170 MPa
Elongation35%
Hardness65 HRB

Chemical Composition of Monel 400 Seamless Pipe


ElementComposition (%)
Nickel63.0 min
Copper28 – 34
Iron2.5 max
Manganese2.0 max
Carbon0.3 max
Silicon0.5 max
Sulfur0.024 max

Industries Using Monel 400 Seamless Pipes


ASTM B165 UNS N04400 Seamless Pipes are widely used in:

  •   Marine engineering
  •   Offshore oil and gas platforms
  •   Chemical processing plants
  •   Heat exchangers
  •   Power generation plants
  •   Desalination plants
  •   Petrochemical refineries

Monel 400 Seamless Pipe Price in India


The price of Monel Alloy 400 Seamless Pipe in India depends on several factors:

  •   Pipe diameter
  •   Wall thickness
  •   Material grade
  •   Manufacturing process
  •   Order quantity

Because nickel-based alloys fluctuate with global metal prices, the cost of ASTM B165 400 Monel Seamless Pipe may vary based on market conditions.

Quality Testing of ASTM B165 UNS N04400 Pipes


All ASTM B165 UNS N04400 Seamless Pipes undergo strict quality testing procedures such as:

  •   Ultrasonic testing
  •   Hydrostatic pressure testing
  •   Eddy current testing
  •   Chemical analysis
  •   Mechanical property testing

Each pipe is supplied with mill test certificates confirming compliance with ASTM standards.

Why Choose Our Monel 400 Seamless Pipes


Key advantages include:

  •   Large inventory of ASTM B165 UNS N04400 Seamless Pipes
  •   Strict quality testing procedures
  •   Competitive pricing
  •   Fast global shipping
  •   Compliance with ASTM / ASME standards