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N04400 WNRF Flanges ASTM B564 Compliant High-Performance Corrosion Resistant Flanges
N04400 WNRF Flanges ASTM B564 Compliant High-Performance Corrosion Resistant Flanges
N04400 WNRF Flanges ASTM B564 Compliant High-Performance Corrosion Resistant Flanges
N04400 WNRF Flanges ASTM B564 Compliant High-Performance Corrosion Resistant Flanges
N04400 WNRF Flanges ASTM B564 Compliant High-Performance Corrosion Resistant Flanges
N04400 WNRF Flanges ASTM B564 Compliant High-Performance Corrosion Resistant Flanges
N04400 WNRF Flanges ASTM B564 Compliant High-Performance Corrosion Resistant Flanges
N04400 WNRF Flanges ASTM B564 Compliant High-Performance Corrosion Resistant Flanges
Specifications
Brand Name :
YUHONG
Model Number :
ASTM B564 N04400
Certification :
API, PED
Place of Origin :
CHIAN
MOQ :
1PC
Price :
Negotiable
Payment Terms :
L/C,T/T
Supply Ability :
100 TONS PER MONTH
Delivery Time :
Depends on quantity
Packaging Details :
PLY-WOODEN CASE
Material Standard :
ASTM B564
Alloy Grade :
UNS N04400 / Monel 400
Flange Type :
WNRF (Weld Neck Raised Face)
Pressure Rating :
Class 150# / 300# / etc.
Size Range :
1/2" to 24" (DN15-DN600)
Temperature Range :
-200°F to 1000°F (-129°C to 540°C)
Corrosion Cert :
NACE MR0175 / MR0103
Face Finish :
125-250 AARH
Description


Monel 400 WNRF Flanges (ASTM B564 N04400) - High-Performance Corrosion Resistant Flanges



1. Introduction to Monel 400 WNRF Flanges


Monel 400 (UNS N04400) weld neck raised face (WNRF) flanges, manufactured under ASTM B564 standard, deliver


exceptional resistance to corrosive environments. As a nickel-copper alloy, Monel 400 maintains superior mechanical


properties from cryogenic temperatures up to 1000°F (540°C), making it ideal for critical applications in marine, chemical,


and oil & gas industries. These flanges ensure leak-proof performance under high-pressure conditions.


2. Monel 400 Chemical Composition (ASTM B564)


Element Composition (%) ASTM B564 Requirement
Nickel (Ni) 63.0 min 63.0 min
Copper (Cu) 28.0–34.0 28.0–34.0
Iron (Fe) 2.5 max 2.5 max
Manganese (Mn) 2.0 max 2.0 max
Carbon (C) 0.3 max 0.3 max
Silicon (Si) 0.5 max 0.5 max
Sulfur (S) 0.024 max 0.025 max


3. Equivalent Grades & Specifications


Monel 400 is globally recognized under multiple standards:


Standard Equivalent Designation
UNS N04400
EN NiCu30Fe (2.4360)
ASME SB-564, SB-127
ASTM B564, B127
NACE MR0175 Compliant


4. Monel 400 Mechanical Properties (WNRF Flange)


Flanges meet ASTM B564 minimum requirements for forged products:


Property Value Test Method
Tensile Strength 80 ksi min (550 MPa min) ASTM E8/E8M
Yield Strength (0.2% Offset) 35 ksi min (240 MPa min) ASTM E8/E8M
Elongation 30% min ASTM E8/E8M
Hardness 65–95 HRB ASTM E18
Impact Strength (Charpy) 70 ft-lb min (95 J min) ASTM E23


5. Key Advantages of Monel 400 WNRF Flanges


  • Corrosion Resistance: Excellent against seawater, hydrofluoric acid, alkalis, and sulfuric acid.


  • Thermal Stability: Maintains strength from -200°F to 1000°F (-129°C to 540°C).


  • Stress-Corrosion Cracking (SCC) Resistance: Superior to stainless steels in chloride-rich environments.


  • Fabrication Ease: Weldable via TIG/MIG methods (use ENiCu-7 filler).


  • Non-Magnetic: Essential for subsea and electronic applications.


6. Monel 400 Flange Applications


WNRF flanges in Monel 400 are specified for:


  • Marine Engineering: Seawater piping, pump shafts, propeller shafts.


  • Chemical Processing: Reactors, HF alkylation units, acid storage tanks.


  • Oil & Gas: Offshore platform components, umbilicals, subsea valves.


  • Power Generation: Feedwater heaters in nuclear/thermal plants.


  • Desalination Plants: Brine heaters, evaporator tubes.
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N04400 WNRF Flanges ASTM B564 Compliant High-Performance Corrosion Resistant Flanges

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Product Detail
Brand Name :
YUHONG
Model Number :
ASTM B564 N04400
Certification :
API, PED
Place of Origin :
CHIAN
MOQ :
1PC
Price :
Negotiable
Contact Supplier
N04400 WNRF Flanges ASTM B564 Compliant High-Performance Corrosion Resistant Flanges
N04400 WNRF Flanges ASTM B564 Compliant High-Performance Corrosion Resistant Flanges
N04400 WNRF Flanges ASTM B564 Compliant High-Performance Corrosion Resistant Flanges
N04400 WNRF Flanges ASTM B564 Compliant High-Performance Corrosion Resistant Flanges

Yuhong Group Co.,Ltd

Verified Supplier
13 Years
zhejiang, ningbo
Since 2007
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Stainless Steel Seamless Pipe, Stainless Steel Seamless Tube, Duplex Stainless Steel Pipe
Total Annual :
50M-70M
Employee Number :
50~850
Certification Level :
Verified Supplier
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