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UNS N04400 Monel 400 Alloy Forged Block
UNS N04400 Monel 400 Alloy Forged Block
UNS N04400 Monel 400 Alloy Forged Block
UNS N04400 Monel 400 Alloy Forged Block
UNS N04400 Monel 400 Alloy Forged Block
UNS N04400 Monel 400 Alloy Forged Block
UNS N04400 Monel 400 Alloy Forged Block
UNS N04400 Monel 400 Alloy Forged Block
UNS N04400 Monel 400 Alloy Forged Block
UNS N04400 Monel 400 Alloy Forged Block
UNS N04400 Monel 400 Alloy Forged Block

UNS N04400 Monel 400 Alloy Forged Block

Product Name: Monel 400 forged steel block, 40Cr forging block, UNS N04400 forging block

Heigh: Max 1200mm

Length: 1200mm

Weight: 15Tons

Material: AISI4340, AISI4140, 42CrMo S45C, 100CR6, 34CRNIMO6, 316l, 304l, F22, F65, 4130, 4140, 4145, 4340, 8630; F51, 17-4PH, F55, F53, 904L, F44; monel 400, hastelloy C22, hastelloy c276....

Application: Mainly suitable for cranes, mechanical parts...

Lengthmax. 6.000 mm
Widthmax. 1.800 mm
Thicknessmax. 1.000 mm (in case of smaller thickness greater length and width)
Weightmax. 30.000 kg



The Monel 400 Alloy Forged Block represents the pinnacle of engineering precision and durability, meticulously crafted from Monel 400, a unique nickel-copper alloy renowned for its exceptional resistance to corrosion, high strength, and unmatched versatility. This forged block embodies excellence in design and performance, making it an indispensable component for a wide array of critical industrial applications.

Monel 400 Forgings

Monel 400 is a unique, high strength alloy of nickel and copper. Frequently employed in critical and high performance applications, Monel 400 exhibits excellent resistance to acids and alkalis, good thermal conductivity, and good ductility, and can be hardened only by cold-working.

Processing: Forging/casting- rough machining, heat treatment, finish machining,inspect


UNS N04400 Monel 400 Information

Monel 400 alloy (UNS N04400 or MCu-28-1.5-1.8 or Ni68Cu28Fe) is a kind of alloy in seawater, chemical solvents, ammonia sulfur chloride, hydrogen chloride, various acidic media such as sulfuric acid, hydrofluoric acid, hydrochloric acid, phosphoric acid, organic acid , Nickel-based alloy material with good corrosion resistance in alkaline medium, salt and molten salt.

Monel 400 is mainly used in chemical and petrochemical and marine development and other fields. It can be used to manufacture various heat exchange equipment, boiler feed water heaters, petroleum and chemical pipelines, containers, towers, tanks, valves, pumps, reactors, shafts, etc.

Physical Property

Density0.318 lb / in3
Modulus of Elasticity26 000 ksi
Heating Energy0.427 J/g-°C
Coefficient of expansion due to heat in./in./ F x 106
70 - 400 F8.6
70 - 800 F8.9
70 - 1000 F9.1

Mechanical Property

Tensile strength(ksi)Yield strength MPaExtensibility %HardnessRockwell B

Chemical Composition

Monel 400 ElementContent %



Nickel Forging Alloys

Monel 400 (UNS N04400/W.Nr.2.4360); Monel K500 (UNS N05500/W.Nr.2.4375), Monel R405 (UNS N04405)

Inconel 718 (UNS N07718/W.Nr.2.4668); Inconel X-750 (UNS N07750/W.Nr.2.4669); Inconel 690 (UNS N06690/W.Nr.2.4642); Inconel 625 (UNS N06625/W.Nr.2.4856); Inconel 600 (UNS N06600/W.Nr.2.4816); Inconel 601 (UNS N06601/W.Nr.2.4851);

Hastelloy B (UNS N10001); Hastelloy C276 (UNS N10276/W.Nr.2.4819); Hastelloy C (NS333); Hastelloy C22 (UNS N06022/W.Nr.2.4602)

Incoloy 926 (UNS N08926/W.Nr.1.4529); Incoloy 800HT (UNS N08811/W.Nr.1.4959); Incoloy 825 (UNS N08825/W.Nr.2.4858); GH4169(Inconel 718)

Stainless Steel Forging Alloys

F51(UNS S31803 W.Nr1.4462); 17-4PH(UNS S17400 SUS630 W.Nr1.4542); F55(UNS 32760 W.Nr1.4501); F53(UNS 32750 W.Nr1.4410 2205); 904L(UNS N08904 W.Nr1.4539); F44(UNS S31254 254SMo W.Nr1.4547)

Carbon Alloy Special Steels

F22, F65, 4130(UNS G41300, 30CrMo), 4140(UNS G41400, 42CrMo, 42CrMo4) , 4145(UNS G41500, 50CrMo4, 1.7228), 4340(UNS G43400, 36CrNiMo4, 40NCD3, 40CrNi2MoA), 8630(UNS G86300)


Hunan Jetvision Industrial Co.,LTD is a professional production of forging flanges, forgings rings, forged shaft, forged bar, customized forgings, etc. , products are widely used in mechanical equipment, new energy equipment, petrochemical pressure vessel equipment, aerospace and military special equipment and other fields.

Our company has strong technical strength and fully implements lean production management, It is equipped with a full set of production lines integrating forging processing, heat treatment, machining and performance testing.The material covers alloy steel, stainless steel, aluminum alloy, titanium alloy and superalloy and other difficult deformation materials.

Forging Line:



Monel 400 Alloy: Exclusively forged from Monel 400, an alloy composed of approximately 67% nickel and 30% copper, which synergistically combines these elements to create a material with extraordinary resistance to corrosive environments, including corrosive gases, acids, and seawater.

Uncompromised Strength: The Monel 400 Alloy Forged Block boasts remarkable tensile strength and mechanical stability, ensuring dependable performance under immense loads and harsh conditions.

Precision Forging: The forging process is meticulously executed to ensure an impeccable grain structure, enhancing the block's mechanical properties and overall integrity.

Thermal Stability: With a low coefficient of thermal expansion, the block maintains its dimensional stability across a wide temperature range, from sub-zero conditions to elevated heat levels.

Non-Magnetic Property: Its inherent non-magnetic nature expands the realm of potential applications, making it suitable for environments where magnetism is a concern.

Processing Service

Machining: Turning / Milling / Planing / Drilling / Boring / Grinding / Gear Cutting / CNC Machining

Deformation processing: Bending / Cutting / Rolling / Stamping



Unrivaled Corrosion Resistance: Monel 400's exceptional resistance to corrosion, stress corrosion cracking, and pitting corrosion guarantees prolonged service life even in the harshest chemical and marine environments.

Versatile Application Spectrum: From aerospace to chemical processing, from marine installations to oil refineries, the Monel 400 Alloy Forged Block finds its utility across a diverse range of industries, providing a steadfast foundation for critical systems.

Reduced Downtime and Maintenance: The block's inherent corrosion resistance significantly reduces maintenance needs and downtime, translating to enhanced operational efficiency.

Reliable Performance Under Pressure: With its robust mechanical properties, the block thrives under pressure, whether it's in heavy machinery or intricate engineering designs.



The Monel 400 Alloy Forged Block's remarkable attributes lend themselves to an array of industries:

Marine and Offshore: From shipbuilding to offshore platforms, Monel 400 ensures enduring performance in the corrosive marine environment.

Chemical Processing: In chemical plants, the block's corrosion resistance makes it a vital component in contact with aggressive chemicals.

Aerospace Engineering: The block meets the stringent demands of aerospace applications, where both strength and corrosion resistance are critical.

Oil and Gas: In oil rigs and refineries, Monel 400 is a stalwart defender against the damaging effects of hydrocarbons.

After sales Service

Our commitment extends beyond product delivery:

Technical Expertise: Our knowledgeable experts offer technical guidance, ensuring optimal utilization of the Monel 400 Alloy Forged Block.

Assured Quality: Backed by a warranty, the forged block represents the highest standards of quality and performance.

Replacement Assurance: Rapid access to replacement parts ensures continuous operations if the need arises.


What is Monel 400 alloy composed of?

Monel 400 is composed primarily of nickel and copper, resulting in exceptional corrosion resistance and strength.

Can it withstand corrosive environments?

Absolutely, Monel 400's composition imparts remarkable resistance to a wide range of corrosive substances, including seawater.

Is it suitable for high-temperature applications?

Yes, the block maintains its structural integrity and performance across a wide temperature spectrum.

What industries benefit from this forged block?

Industries including marine, chemical processing, aerospace, and oil and gas can leverage the advantages of the Monel 400 Alloy Forged Block.

How does it ensure reduced maintenance?

The block's innate corrosion resistance minimizes the effects of wear and tear, leading to reduced maintenance needs and extended operational life.

What is Monel 400 used for?

Monel 400 is widely used in the chemical, oil and marine industries. Corrosion resistance in an extensive range of marine and chemical environments. From pure water to nonoxidizing mineral acids, salts and alkalis.

Is Monel 400 better than nickel 400?

Monel 400, Alloy 400, UNS N04400

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.

What is the Rockwell hardness of Monel 400?

Monel alloy 400 has a specific gravity of 8.80, a melting range of 1300–1350 °C, an electrical conductivity of approximately 34% IACS, and (in the annealed state) a hardness of 65 Rockwell B. Monel alloy 400 is notable for its toughness, which is maintained over a considerable range of temperatures.

Is Monel 400 better than stainless steel?

Monel 400 vs Stainless Steel 316 - What's the Difference

While monel 400 and stainless steel 316 offer excellent resistance to corrosive environments, their properties have some key differences. Monel 400 is more robust than stainless steel 316 and offers excellent resistance to high-temperature environments.

Is Monel better than Inconel?

Difference Between Inconel And Monel Corrosion Resistance. Inconel has higher oxidation resistance than monel where the Monel grades have resistance against sea water and reducing media such as hydrofluoric acid, sulfuric acid and alkalis

Why is MONEL hard to weld?

Monel is also very corrosion resistant. This is due to its tenacious oxide coating, and while this is a desirable material trait, the oxide makes the material more challenging to weld.

What is the difference between Monel and Monel 400?

Monel (known formally as UNS N05500) is an alloy of nickel and copper with small amounts of other elements such as iron, manganese, carbon, silicon, sulfur, and magnesium. Compared to alloy 400, Monel offers greater strength and higher corrosion resistance when exposed to seawater or saline environments.

Other Forgings are Available

Hunan Jetvision Industrial Co.Ltd is a professional supplier&manufacturer which offer kinds of alloy and stainless steel forging, such as forging ring, shaft forging, forged cylinder, forged discs, forged hollow, forging block, forged round bar, etc, with top quality and low factory price.

SIZE/ WEIGHTCarbon, Alloy & ToolStainlessAluminumTitanium
FLAT BAR/BLOCKSMAX. WIDTH120”120”27”60”65”
MAX. WEIGHT60,000#60,000#15,000#10,000#15,000#
MAX. LENGTH108”108”65”96”65”
DISCS/HUBSMAX. DIA.96”96”50”80”65”
MAX. WEIGHT75,000#75,000#20,000#15,000#10,000#
MAX. LENGTH65”65”40”65”65”
ROUNDS/SHAFTS (with steps or flanges)MAX. LENGTH420”220”144”220”144”
MAX. WEIGHT75,000#75,000#20,000#10,000#10,000#


Material are avalible:

Stainless Steel: ASTM A182、F304/304L、 F316/316L、 F316H、F310、 F321、JB4728-2000 、OCR18Ni10Ti、JB4728-2000、OCR17NI12Mo2、2205、2507、2103、904L、254SMD、304LN、316LN、1CR13、2cr13、3cr13、4cr13、321、302、W1813N、W2014N、W2018N、W2020N、P550、Cr18Mn18N、06Cr19Ni10(S30408)、022Cr19Ni10(S30403)、06Cr17Ni12Mo2(S31608)、022Cr17Ni12Mo2(S31603)、06Cr25Ni20(S31008)、06Cr18Ni11Ti(S32168)、022Cr19Ni13Mo(S31703)、0Cr17Ni4Cu4Nb、06Cr19Ni10N、14Cr17Ni2、13Cr13Mo、06Cr13, etc stainless steel forgings.

Alloy Steel: 40Cr、15CrMo、20CrMo、25CrMo、30CrMo、35CrMo、35CrMoV、42CrMo、20Cr2Ni4、20CrNiMo、40CrNiMo、30Cr2Ni2Mo、35CrMoV、12Cr1MoV、38CrMoAl、18Cr2Nio4W、40CrNi2Mo、30CrMnSi、25Cr2MoV、17Cr2Ni2Mo、20MnMo、20MnMoNb、34CrNi3Mo、20CrMnTi、40CrMnMo、30Cr2Ni2Mo、34CrMo1、20CrMnMo、24CrMoV、30Cr2MoV、34CrNi1Mo、17Cr2Ni2Mo、34CrNi3MoV、20CrMnTi、A182F1、F5、F9、F11、F22、12Cr2Mo1、10Cr9Mo1VNbN(F91)、10Cr9MoW2VNbBN(F92)、12CrMoV、4140、4340、4330、4130、4150、9CR2MO、17NiCrMo6-4、18CrNiMo7-6、30CrNiMo8、34CRNIMO、34CrNiMo6、36CrNiMo4、34CrNi3Mo、40CRNIMO、40CrNiMoA、50CrMo4、Q345D、300M、17-4PH、PH13-8Mo、15-5PH、AerMet100, etc alloy steel forgings.


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