Kanakratna Steelage Private Limited

Introduction

Monel 400 round bars are among the most widely used nickel-copper alloy products in engineering and manufacturing. Known for their exceptional corrosion resistance, strength, and durability, Monel 400 bars are essential in industries such as marine, oil & gas, chemical processing, aerospace, and power generation.

Being a solid-solution alloy of about 67% nickel and 23–30% copper, Monel 400 maintains excellent mechanical properties across a wide range of temperatures and shows remarkable resistance to seawater, acidic, and alkaline environments.

Round bars of Monel 400 are manufactured in various sizes, diameters, and finishes to suit applications ranging from pump shafts and marine hardware to heat exchanger tubesheets and fasteners.

Chemical Composition of Monel 400

. Mechanical Properties

Typical values for hot-rolled & annealed condition:

Physical Properties

• Melting Range: 1300 – 1350 °C

• Thermal Conductivity: 21.8 W/m·K

• Electrical Resistivity: 5.95 μΩ·cm

• Magnetic Permeability: Very low (essentially non-magnetic)

• Modulus of Elasticity: ~179 GPa

Standards & Specifications

• ASTM B164: Nickel-Copper Alloy Rods, Bars, and Wire.

• ASME SB164: Pressure vessel applications.

• AMS 4675, AMS 4676: Aerospace quality standards.

• DIN 17752, EN 12163: European standards.

Sizes & Finishes

• Diameter Range: 3 mm to 350 mm (custom up to 600 mm).

• Lengths: 3m, 6m, cut-to-length, custom.

• Finishes: Black, bright, polished, ground, centerless ground, machined.

Testing & Inspection

• Chemical Analysis (Spectrometer).

• Tensile & Hardness Testing.

• Ultrasonic Testing (UT).

• Eddy Current Inspection.

• Dimensional & Visual Check.

• Pitting & Corrosion Tests (ASTM G48).

Packaging & Handling

• Packed in wooden boxes or bundles.

• Ends capped to avoid damage.

• Export packing with seaworthy protection.

• Marking: Heat no., size, alloy grade, manufacturer.

Additional Information:

• Item Code: Monel400
• Production Capacity: 100 Tons in Ready Stock
• Delivery Time: Ready Stock
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes

Monel 400 Hex Bars (UNS N04400) are high-performance nickel-copper alloy products with a unique hexagonal cross-section, making them especially suitable for fasteners, marine components, and precision machined parts where superior strength and corrosion resistance are required. Monel 400, the base alloy, is a solid-solution alloy composed primarily of nickel (≈ 67%) and copper (≈ 23–30%), offering exceptional toughness, ductility, and resistance to both acidic and alkaline environments.

Unlike stainless steels, Monel 400 is not prone to chloride stress-corrosion cracking, making it ideal for seawater and brine service. Hex bars, in particular, are widely demanded for nuts, bolts, threaded rods, valve components, and fittings, where precise geometry and machinability are critical.

Typical annealed condition properties:

• Density: 8.8 g/cm³

• Melting Range: 1300 – 1350 °C

• Thermal Conductivity: 21.8 W/m·K

• Electrical Resistivity: 5.95 μΩ·cm

• Magnetic Permeability: Very low (essentially non-magnetic)

• Elastic Modulus: ~179 GPa

• Across Flats (AF): 6 mm to 150 mm.

• Length: 3 m, 6 m, cut length, or custom.

• Tolerances: h9/h11 depending on application.

• Finishes: Black, bright, polished, centerless ground.

• Annealing: 1600–1800 °F (870–980 °C), followed by rapid cooling.

• Stress relief annealing helps avoid distortion in machined hex bars.

• Export seaworthy packing: wooden boxes, bundles with protective coatings.

• Hex bars are end-capped to prevent damage.

• Each bar is marked with heat no., alloy grade, dimensions, and manufacturer.

Additional Information:

• Production Capacity: IN TONS
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes

Monel 400 (UNS N04400, W.Nr. 2.4360/2.4361) is a nickel-copper alloy with excellent resistance to seawater, salt solutions, hydrofluoric acid, and alkalis. It offers high strength over a wide temperature range and outstanding toughness, even at sub-zero temperatures.

Monel 400 flanges are forged or cast connecting components used to join pipes, valves, pumps, and other equipment. They play a crucial role in offshore, marine, oil & gas, desalination, and chemical processing industries where corrosion resistance is paramount.

Due to their durability, non-magnetic properties, and resistance to chloride-induced corrosion, Monel 400 flanges are widely used in harsh industrial and marine conditions.

• Density: 8.8 g/cm³

• Melting Point: 1300 – 1350 °C

• Thermal Conductivity: 21.8 W/m·K

• Electrical Resistivity: 5.7 µΩ·cm

• Magnetic Properties: Essentially non-magnetic

• Weld Neck Flanges (WN) – For high-pressure systems.

• Slip-On Flanges (SOF) – Easy to install, moderate strength.

• Blind Flanges (BLRF) – For sealing pipe ends.

• Socket Weld Flanges (SWF) – For small-diameter, high-pressure piping.

• Threaded Flanges (THF) – No welding required, used in low-pressure systems.

• Lap Joint Flanges (LJ) – Used with stub ends for frequent dismantling.

• Orifice Flanges – For flow measurement.

• Long Weld Neck Flanges – Extended neck for vessel and equipment connections.

• Chemical Analysis (Spectro test)

• Mechanical Tests (Tensile, Hardness, Impact)

• Corrosion Resistance Testing (ASTM G28, G48)

• Non-Destructive Testing (Ultrasonic, Radiography, MPI)

• Hydrostatic & Pneumatic Testing

• Dimensional Inspection (ASME/ANSI compliance)

Additional Information:

• Production Capacity: IN TONS
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes

Monel 400 is a solid-solution nickel-copper alloy (UNS N04400) renowned for its excellent resistance to corrosion, high mechanical strength, and toughness over a wide temperature range. First developed by the International Nickel Company in the early 20th century, Monel 400 continues to be a vital material in the chemical processing, marine, oil and gas, and aerospace sectors.

This document explores the properties and applications of Monel 400 Pipes, one of the most widely used forms of this alloy. These pipes are integral to systems that demand high corrosion resistance and structural integrity under extreme environmental and chemical conditions.

Monel 400 is a single-phase solid-solution alloy that gains its strength and corrosion resistance from the synergistic properties of nickel and copper.

Monel 400 is generally annealed to restore ductility and reduce internal stresses post-fabrication. The annealing temperature typically ranges from 850–1000°C, followed by rapid cooling.

Monel 400 Pipes are available in a wide variety of configurations:

Monel 400 pipes are readily available through specialty metal suppliers and are usually supplied with mill test certificates (MTCs) and NACE compliance reports.

Additional Information:

• Production Capacity: IN TONS
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes

Monel 400 is a solid-solution nickel-copper alloy (UNS N04400) renowned for its excellent resistance to corrosion, high mechanical strength, and toughness over a wide temperature range. First developed by the International Nickel Company in the early 20th century, Monel 400 continues to be a vital material in the chemical processing, marine, oil and gas, and aerospace sectors.

This document explores the properties and applications of Monel 400 Pipes, one of the most widely used forms of this alloy. These pipes are integral to systems that demand high corrosion resistance and structural integrity under extreme environmental and chemical conditions.

Monel 400 is a single-phase solid-solution alloy that gains its strength and corrosion resistance from the synergistic properties of nickel and copper.

Monel 400 is generally annealed to restore ductility and reduce internal stresses post-fabrication. The annealing temperature typically ranges from 850–1000°C, followed by rapid cooling.

Monel 400 Pipes are available in a wide variety of configurations:

Monel 400 pipes are readily available through specialty metal suppliers and are usually supplied with mill test certificates (MTCs) and NACE compliance reports.

Additional Information:

• Production Capacity: 20 TONS
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes

Monel 400, also designated as UNS N04400 (WNR 2.4360), is a nickel-copper solid-solution alloy renowned for its excellent corrosion resistance, mechanical toughness, and thermal stability. Developed by International Nickel Company (INCO) in the early 20th century, it remains one of the most widely used nickel alloys in marine engineering, chemical processing, oil & gas, power generation, and aerospace.

When produced in the form of sheets, Monel 400 offers exceptional fabricability, durability, and weldability. These sheets are used in tanks, marine structures, heat exchangers, pump components, pressure vessels, chemical processing equipment, and cladding materials where resistance to seawater, hydrofluoric acid, alkalis, and non-oxidizing acids is essential.

Monel 400’s unique performance comes from its nickel-copper balance, with minor additions for strength and impurity control.

Monel 400 sheets provide an excellent combination of strength, ductility, and toughness across a wide temperature range.

Monel 400 sheets are manufactured as per international standards:

• ASTM B127 / ASME SB127 – Sheets, plates, and strips

• ASTM B564 / SB564 – Forged fittings & flanges

• AMS 4544 – Aerospace specifications

• UNS: N04400

• Werkstoff Nr.: 2.4360

Additional Information:

• Production Capacity: 10 TONS
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes

Monel 400 Circles (UNS N04400) are precision-engineered components manufactured from nickel-copper alloy Monel 400, a material known for its exceptional corrosion resistance, mechanical strength, and thermal stability. The “circle” refers to round, disk-shaped forms of Monel 400, commonly cut from plates or sheets, and used in flanges, gaskets, pressure vessels, and marine equipment.

Unlike conventional stainless steels, Monel 400 Circles resist chloride-induced corrosion, seawater attack, and acidic/alkaline environments, making them indispensable in marine, oil & gas, chemical, and power generation industries.

• Density: 8.8 g/cm³

• Melting Range: 1300 – 1350 °C

• Thermal Conductivity: 21.8 W/m·K

• Electrical Resistivity: 5.95 μΩ·cm

• Magnetic Permeability: Low (essentially non-magnetic)

• Thickness Range: 2 mm – 100 mm

• Diameter Range: 10 mm – 2000 mm (custom cut)

• Surface Finish: Hot rolled, cold rolled, polished, machined

• Tolerances: As per ASTM/ASME or customer requirements

• Annealing: Performed at 1600–1800 °F (870–980 °C) with rapid cooling.

• Restores ductility after heavy working.

Additional Information:

• Production Capacity: IN TONS
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes

Monel 400 Pipes (UNS N04400) are high-performance nickel-copper alloy pipes known for their excellent resistance to seawater, acidic, and alkaline environments. With a composition of roughly 67% nickel and 23% copper, Monel 400 is among the most versatile alloys used in marine, oil & gas, chemical, and power generation industries.

Unlike stainless steels, Monel 400 pipes offer immunity to stress corrosion cracking (SCC) and resistance to hydrofluoric acid and saltwater corrosion, making them one of the most reliable choices for critical industrial piping systems.

• Density: 8.8 g/cm³

• Melting Point: 1300 – 1350 °C

• Thermal Conductivity: 21.8 W/m·K

• Electrical Resistivity: 5.47 µΩ·cm

• Modulus of Elasticity: 179 GPa

• Magnetic Properties: Slightly magnetic at room temperature

• Performs well up to 550 °C in oxidizing atmospheres.

• Excellent mechanical properties at cryogenic to moderate temperatures.

• Used in heat exchangers, steam generators, and furnace components.

• End capped and plastic-wrapped.

• Wooden cases or pallets.

• Markings include grade, size, schedule, heat number.

Additional Information:

• Production Capacity: IN TONS
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes