Custom N04400 Copper Nickel Alloy Flange For Petrochemical Industry Equipment Forged Monel 400 Flange
Custom N04400 Copper-Nickel Alloy Flange | Monel 400 Forged Flange for Petrochemical Equipment | SSM
SSM is a trusted manufacturer and global supplier of custom N04400 Copper-Nickel (Monel 400) flanges, designed for corrosion-resistant and high-performance industrial piping systems. These forged Monel 400 flanges are widely used in petrochemical, marine, and chemical processing industries.
1. Product Overview
The N04400 Monel 400 flange is engineered to withstand harsh environments including seawater, acidic solutions, and high-temperature processes. Available in a range of custom sizes and designs, it provides reliable, leak-proof connections for critical pipelines and equipment.
Standard: ASME B16.5 / ASME B16.47 / Custom
Material: Monel 400 (N04400) Copper-Nickel Alloy
Type: Weld Neck (WN), Slip-On (SO), Blind (BL), or Custom Forged Flanges
Applications: Petrochemical, Marine, Chemical Processing, Offshore Platforms
Pressure Rating: Class 150 – Class 2500
2. Material Composition (Monel 400 / N04400)
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 63 min |
| Copper (Cu) | 28 – 34 |
| Iron (Fe) | 2.5 max |
| Manganese (Mn) | 2 max |
| Carbon (C) | 0.3 max |
| Silicon (Si) | 0.5 max |
Monel 400 provides:
Exceptional corrosion resistance in seawater, hydrofluoric acid, and sulfuric acid
Excellent resistance to stress-corrosion cracking and pitting
Suitable for high-temperature and high-pressure applications
3. Mechanical Properties (Typical)
| Property | Value |
|---|---|
| Tensile Strength | 690 – 850 MPa |
| Yield Strength | 240 – 380 MPa |
| Elongation | 30 – 45% |
| Hardness | ≤ 250 HB |
| Service Temperature | -200°C to +550°C |
4. Key Features
✅ High Corrosion Resistance: Ideal for marine, offshore, and chemical environments
✅ Customizable Design: WN, SO, BL, or any forged flange configuration
✅ Durable & Strong: Maintains mechanical integrity under pressure and temperature
✅ Reliable Seal: Ensures leak-proof connections in critical pipelines
✅ Standard Compliance: Can be manufactured according to ASME, ASTM, or customer specifications
5. Advantages and Limitations
Advantages:
Resistant to pitting, crevice corrosion, and oxidizing conditions
Long service life in harsh chemical and marine environments
Excellent weldability and machinability
Limitations:
Higher material cost than carbon steel or standard stainless steel
Requires specialized machining and handling due to nickel-copper alloy properties
6. Applications
Petrochemical Processing Plants
Offshore Oil & Gas Platforms
Marine Piping Systems
Desalination and Seawater Systems
Chemical and Corrosive Process Equipment
7. Why Choose SSM
30+ years of experience in Nickel-Copper Alloy and Monel 400 flanges
Certified under ISO 9001 and EN 10204 3.1
Compliance with ASME B16.5, B16.47, ASTM B564, and customer standards
Advanced forging, CNC machining, and NDT inspection
Fast global delivery and custom design services available
8. Conclusion
The SSM N04400 Monel 400 Forged Flange is engineered for superior corrosion resistance, mechanical strength, and durability, making it ideal for petrochemical, marine, and chemical processing applications.
It ensures secure, leak-proof, and long-lasting pipeline connections in the harshest environments.
📩 Contact SSM today for a quotation or custom design for your Monel 400 flange.
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