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Monel 400 nickel alloy concentric reducers are manufactured from UNS N04400 nickel-copper alloy, offering excellent resistance to seawater, acids, alkalis and various corrosive media. Designed for smooth transition between different pipe sizes, they provide high strength, toughness and long-term reliability, making them widely used in marine engineering, nuclear industry, oil & gas and fine chemical piping systems in harsh corrosive environments.
Key Features
Excellent resistance to seawater, acids, alkalis and various corrosive media.
Excellent resistance to stress corrosion cracking.
Good machinability and weldability for easy fabrication and installation.
Compact design with smooth flow transition between different pipe diameters.
High dimensional accuracy with reliable sealing performance.
Designed for demanding applications in marine, chemical, oil & gas and energy industries.
Long service life with reduced maintenance requirements.
Typical Applications
Used in seawater piping, offshore platforms, ship piping and desalination equipment.
Applied in oil & gas pipelines, refining equipment and corrosive media processing systems.
Suitable for piping systems handling acids, alkalis, salt solutions and other corrosive media.
Used in nuclear power auxiliary systems, energy equipment and high-reliability piping connections.
Used in heat exchangers, pressure vessels and industrial circulation systems.
Applied in ship piping systems, offshore production platforms and corrosion-resistant equipment.
Used for connecting different pipe sizes to ensure smooth transition and reliable fluid transportation.
Chemical Composition (wt%)
Element
Ni
Cu
Fe
Mn
C
Si
S
Range
≥63.0
28.0–34.0
≤2.50
≤2.0
≤0.30
≤0.50
≤0.024
Mechanical Properties (Annealed Condition)
Property
Value
Tensile Strength (Rm)
≥ 480 MPa (70 ksi)
Yield Strength (Rp0.2)
≥ 170 MPa (25 ksi)
Elongation (A5)
≥ 35 %
Density
8.80 g/cm³
Hardness
≤140 HB
Modulus of Elasticity
179 GPa
Max Service Temperature
400℃-538°C(752°F-1000°F)
Precautions
Prevent galvanic corrosion when connecting with dissimilar metals by applying proper isolation methods.
Avoid excessive installation stress to ensure long service life and reliable operation.
Keep surfaces clean and free from oil, contaminants and iron particles to preserve corrosion resistance.
Operate within specified temperature and pressure limits to prevent performance degradation.
Perform regular inspection of connections, welds and surface conditions during long-term service.
Quality Assurance
All DINGSCO Monel 400 concentric reducers are subject to strict inspections, including PT (ASTM E165), tensile testing (ASTM E8), OES chemical analysis, hardness testing (ASTM E18), ultrasonic testing and dimensional verification. Full traceability is maintained throughout the production process from raw material to finished reducers. MTRs, heat certificates and NDT reports can be provided upon request.
Contact our sales team today for a competitive quote, technical datasheet, or to discuss your custom forging requirements.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1998
Total Annual:
70 million-100 million
Employee Number:
50~60
Ecer Certification:
Verified Supplier
Hunan Dinghan New Material Technology Co.,Ltd. (DINGSCO) specialized in Nickel Based Corrosion Resistant and High Temperature alloys products which used in the world’s most technically demanding industries and applications.
We have complete advanced technology facilities t... Hunan Dinghan New Material Technology Co.,Ltd. (DINGSCO) specialized in Nickel Based Corrosion Resistant and High Temperature alloys products which used in the world’s most technically demanding industries and applications.
We have complete advanced technology facilities t...