Hunan Dinghan New Material Technology Co., LTD
| Payment Terms | T/T |
| Supply Ability | Negotiable |
| Delivery Time | (Sample order) 7 days |
| Packaging Details | According to customers' requests |
| Product Name | High-Performance Monel 400 Forged Flange for Marine and Chemical Applications |
| Material | Nickel Alloy |
| Grade | Monel |
| Dimention | As Per Your Demands |
| Features | High Temperature&Corrosion Resistance |
| Flange Types | WNRF, SORF, BLRF, SWRF, Lap Joint, Threaded, Orifice, Spectacle Blind |
| Face Type | Raised Face, Flat Face, Ring Type Joint |
| Application | Marine Engineering，Chemical Processing Equipment，Oil & Gas Industry，Energy & Desalination Systems |
| Brand Name | DINGSCO |
| Model Number | According to customers' requirements |
| Certification | ISO 9001:2015,PED 2014/68/EU,API 6A,API-20B,TSG,NORSOK |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T | Supply Ability | Negotiable |
| Delivery Time | (Sample order) 7 days | Packaging Details | According to customers' requests |
| Product Name | High-Performance Monel 400 Forged Flange for Marine and Chemical Applications | Material | Nickel Alloy |
| Grade | Monel | Dimention | As Per Your Demands |
| Features | High Temperature&Corrosion Resistance | Flange Types | WNRF, SORF, BLRF, SWRF, Lap Joint, Threaded, Orifice, Spectacle Blind |
| Face Type | Raised Face, Flat Face, Ring Type Joint | Application | Marine Engineering，Chemical Processing Equipment，Oil & Gas Industry，Energy & Desalination Systems |
| Brand Name | DINGSCO | Model Number | According to customers' requirements |
| Certification | ISO 9001:2015,PED 2014/68/EU,API 6A,API-20B,TSG,NORSOK | Place of Origin | China |
| High Light | High Temperature Resistance Monel 400 Flange ，Corrosion Resistance Nickel Alloy Flange ，Precision Machined Forged Flange | ||
High-Performance Monel 400 Forged Flange for Marine and Chemical Applications
The Monel 400 forged flange is a premium product designed for demanding industrial environments that require both mechanical strength and exceptional corrosion resistance.
Nickel-copper alloy Monel 400 (UNS N04400) flange through precision hot forging and CNC machining, resulting in a highly dense and uniform microstructure with superior sealing performance.
The smooth and polished surface enhances its resistance to corrosion and ensures excellent fitting accuracy in pipeline and valve systems.
Monel 400 is a solid-solution alloy composed primarily of nickel and copper, making it highly resistant to a wide range of corrosive environments.
It maintains outstanding strength, ductility, and stability under both cryogenic and elevated temperatures.
Main Characteristics:
Excellent corrosion resistance in marine and alkaline environments
High toughness and durability at both low and high temperatures
Resistance to stress corrosion cracking and cavitation
Suitable for hot forming, welding, and machining
Material Preparation:
High-purity Monel 400 alloy billets are prepared using vacuum melting technology.
Hot Forging Process:
Heated and forged between 900°C–1150°C to achieve a fine-grain, defect-free structure.
Heat Treatment:
Solution annealing at 870°C improves mechanical uniformity and corrosion performance.
Precision Machining:
The sealing face, inner bore, and bolt holes are precisely processed with CNC lathes.
Quality Control:
Each piece undergoes dimensional inspection, ultrasonic testing, and penetrant testing to ensure flawless integrity.
Finishing:
Final polishing and protective coating enhance both appearance and corrosion resistance.
| Property | Typical Value |
|---|---|
| Material | Monel 400 (UNS N04400) |
| Density | 8.8 g/cm³ |
| Tensile Strength | ≥480 MPa |
| Yield Strength | ≥170 MPa |
| Elongation | ≥35% |
| Hardness | 120–180 HB |
| Working Temperature | -100°C to +550°C |
Monel 400 forged flanges are widely used in:
Offshore & Marine Systems: Seawater pumps, condensers, and heat exchangers
Chemical & Petrochemical Plants: Alkali production, acid handling pipelines, reactor connectors
Power Generation: Condenser tubes and corrosion-resistant fittings
Desalination & Water Treatment Equipment
Monel 400 Chemical Compositions
| S | C | Cu | Ni | Si | Mn | Fe |
| 0.024 | 0.3 | 34 | - | 0.5 | 2 | 2.5 |
| - | - | 28 | 63 | - | - | - |
With years of expertise in nickel-based alloy forging, DINGSCO® provides customized Monel 400 forged products tailored to international standards such as ASTM B564 / ASME SB564.
Each product is strictly tested, ensuring long service life and reliability in harsh operating conditions.
Company Details
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 to produc... 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 to produc...
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