Monel 400 Tubes Supplier in India

What Are Monel 400 Tubes?

Monel 400 Tubes are nickel-copper alloy tubes known for their excellent corrosion resistance, high strength, toughness and reliable performance in marine and chemical environments. Monel 400, designated as UNS N04400, is one of the most widely used Monel alloys for demanding industrial applications.

Monel 400 Tubes offer excellent resistance to seawater, hydrofluoric acid, alkalis, salt solutions and chloride-containing environments. The alloy also provides good mechanical strength, toughness and resistance to stress corrosion cracking, making it suitable for applications where both corrosion resistance and mechanical reliability are required.

These tubes are used in marine equipment, chemical processing, oil and gas systems, heat exchangers, power generation, petrochemical equipment and offshore applications. The required grade, tube dimensions, wall thickness, length and finish are selected according to the application and operating conditions.

Kamal Steels is a reliable Monel 400 Tubes Supplier and Exporter in India, supplying tubes in different sizes, wall thicknesses, lengths and finishes according to customer and project requirements. We also cater to international requirements with suitable export packaging and documentation.

Monel 400 Tubes

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Monel 400 Tube Specifications

Monel 400 Tubes are supplied according to applicable material standards and customer requirements. The alloy combines nickel and copper with controlled additions of iron, manganese, carbon and silicon.

Specification Monel 400 Tubes
Material Nickel-Copper Alloy
Grade Monel 400
UNS N04400
ASTM Tube Standard ASTM B163
ASME Standard ASME SB163
Tube Type Seamless / As specified
Outside Diameter As per requirement
Wall Thickness As per requirement
Length Random, Fixed or Customized
Finish Annealed / Pickled / As required

Monel 400 Tube Size Chart

Monel 400 Tubes are available in different outside diameters and wall thicknesses. Standard and customized dimensions can be supplied according to customer drawings, specifications and project requirements.

Tube Size Outside Diameter (mm) Wall Thickness Length
1/4"6.35As requiredAs required
1/2"12.70As requiredAs required
3/4"19.05As requiredAs required
1"25.40As requiredAs required
1-1/2"38.10As requiredAs required
2"50.80As requiredAs required
3"76.20As requiredAs required
4"101.60As requiredAs required
6"152.40As requiredAs required

Monel 400 Tube Weight Chart

The theoretical weight of Monel 400 Tubes depends on outside diameter, wall thickness and length. The following values are approximate reference values calculated using the typical density of Monel 400.

Outside Diameter (mm) Wall Thickness (mm) Inside Diameter (mm) Approx. Weight (kg/m)
12.701.0010.700.36
19.051.5016.050.84
25.402.0021.401.55
31.752.5026.752.44
38.103.0032.103.44
50.803.0044.804.76
63.503.0057.506.08
76.204.0068.209.71
101.605.0091.6015.80

Note: The values shown are approximate theoretical weights. Actual weight may vary according to dimensions, tolerances, density and manufacturing conditions.

ASTM B163 Monel 400 Tube

ASTM B163 Monel 400 Tubes are seamless nickel-alloy tubes intended for applications such as condensers and heat exchangers where corrosion resistance and reliable mechanical performance are required. Monel 400 is identified by UNS N04400.

Specification Details
ASTM StandardASTM B163
ASME StandardASME SB163
GradeMonel 400
UNSN04400
MaterialNickel-Copper Alloy
ProductSeamless Tube

Monel 400 Tube Features

Monel 400 Tubes provide an excellent combination of corrosion resistance, strength and toughness, particularly in marine and chemical environments.

  • Excellent resistance to seawater and marine environments
  • Excellent resistance to hydrofluoric acid
  • Good resistance to alkalis and salt solutions
  • Good mechanical strength
  • Excellent toughness
  • Good resistance to stress corrosion cracking
  • Good resistance to chloride-containing environments
  • Reliable performance across a wide temperature range
  • Good resistance to erosion and cavitation in suitable conditions
  • Suitable for demanding chemical and marine applications

Monel 400 Tube Chemical Composition

Monel 400 is primarily a nickel-copper alloy with controlled amounts of iron, manganese, carbon and silicon. Its composition provides the alloy with excellent corrosion resistance and good mechanical properties.

Element Composition (%)
Nickel + Cobalt63.0 min.
Copper28.0 - 34.0
Iron2.50 max.
Manganese2.00 max.
Carbon0.30 max.
Silicon0.50 max.

Monel 400 Tube Mechanical Properties

The mechanical properties of Monel 400 Tubes depend on product condition, dimensions and heat treatment. The following values provide general reference information.

Property Typical Value
Tensile StrengthApprox. 550 MPa
Yield StrengthApprox. 240 MPa
ElongationApprox. 35%
DensityApprox. 8.80 g/cm³
Melting RangeApprox. 1300 - 1350°C

Note: Actual mechanical properties vary according to temper, product form, dimensions, heat treatment and applicable specification. Certified material test reports should be used for final verification.

Monel 400 Tube Equivalent Grades

Designation Monel 400
UNSN04400
EN2.4360 / 2.4361
Trade NameMonel 400
Material TypeNickel-Copper Alloy

Monel 400 Tube vs Other Monel Grades

Monel grades are selected according to the required combination of corrosion resistance, strength, hardness and operating conditions. Monel 400 is widely used because of its balanced corrosion resistance and mechanical performance.

Grade Main Characteristics Typical Applications
Monel 400 Excellent corrosion resistance and good mechanical strength Marine, chemical processing, heat exchangers and oil & gas
Monel K500 Higher strength and hardness with good corrosion resistance Marine, pumps, shafts and oil & gas equipment

Monel 400 Tube Applications

Monel 400 Tubes are used in applications requiring excellent corrosion resistance and dependable mechanical performance in marine, chemical and industrial environments.

Marine Equipment

Used in seawater systems, marine piping components, offshore equipment and other applications exposed to marine environments.

Chemical Processing

Used in chemical processing equipment handling corrosive chemicals and selected acidic or alkaline solutions.

Heat Exchangers

Used in heat-transfer and condenser systems where corrosion resistance is an important requirement.

Oil & Gas Equipment

Used in selected oil and gas equipment exposed to corrosive fluids and demanding service conditions.

Power Generation

Used in selected power-generation equipment, condensers and components requiring corrosion-resistant nickel alloys.

Petrochemical Equipment

Used in selected process equipment and tubular systems exposed to corrosive operating environments.

Industries Using Monel 400 Tubes

Kamal Steels supplies Monel 400 Tubes to industries requiring corrosion-resistant nickel-copper alloy tubing for demanding operating environments.

Marine Industry

Used in marine and offshore systems where resistance to seawater corrosion is required.

Chemical Industry

Used in chemical processing equipment exposed to selected corrosive chemicals and solutions.

Oil & Gas Industry

Used in selected oil and gas equipment requiring corrosion resistance and mechanical reliability.

Power Generation Industry

Used in condensers, heat-transfer systems and selected power-generation equipment.

Petrochemical Industry

Used in process equipment and tubular systems exposed to demanding corrosive environments.

Industrial Engineering

Used for specialized components and equipment requiring corrosion-resistant nickel-copper alloys.

Frequently Asked Questions

Monel 400 Tubes are high-performance nickel-copper alloy tubes manufactured from Monel Alloy 400 (UNS N04400 / WNR 2.4360). They are designed for applications requiring exceptional corrosion resistance, especially in marine and chemical processing environments.

Our Monel 400 Tubes are manufactured according to ASTM B163, ASTM B165, ASTM B725, ASTM B730, ASME SB163, and ASME SB165 standards.

Monel 400 Tubes provide exceptional resistance to seawater corrosion, hydrofluoric acid, alkalis, pitting, crevice corrosion, excellent mechanical strength, outstanding weldability, and long service life.

They are widely used in marine engineering, offshore oil & gas platforms, chemical processing plants, heat exchangers, condensers, desalination systems, hydrofluoric acid processing, and power generation facilities.

Yes. Monel 400 offers outstanding resistance to flowing seawater, seawater corrosion, and marine environments, making it one of the preferred alloys for offshore and marine applications.

Each tube undergoes PMI Testing, Chemical Analysis, Mechanical Testing, Hydrostatic Testing, Ultrasonic Testing (UT), Eddy Current Testing (ECT), Flattening, Flaring, Dimensional Inspection, and Visual Inspection.

Yes. Monel 400 exhibits excellent resistance to hydrofluoric acid, alkalis, reducing acids, seawater, and numerous aggressive chemical environments.

Yes. Every shipment includes EN 10204 3.1/3.2 Mill Test Certificates, inspection reports, complete material traceability, and third-party inspection certificates upon request.

Yes. Kamal Steels exports Monel 400 Tubes worldwide with export-standard packaging, complete documentation, and timely international delivery.

Kamal Steels offers ASTM-compliant Monel 400 Tubes with ready stock, certified quality, competitive pricing, stringent quality control, export-standard packaging, complete documentation, and dependable worldwide delivery for critical industrial applications.