Monel 400 Oil & Gas Pipe
In the demanding environments of the oil and gas industry, where corrosive elements and high pressures are a constant challenge, material selection is paramount. Monel 400 (UNS N04400) oil pipe stands out as a premier choice for critical applications that exceed the capabilities of standard stainless steels.
1. Standard: ASTM B165, ASTM B725, ASME SB-165/SB-725
2. Diameters: 4.0 - 1219.2 mm
3. Wall thickness: 0.5 to 20mm
4. Length: Single Random Length, Double Random Length and Customized
+86 19937075488
susan@lorkgroup.com

Lork Group is a specialized supplier and exporter of high-performance nickel alloys for critical industries. We understand the stringent requirements and certifications needed for oil and gas applications.
We provide Monel 400 Pipe in forms suitable for the Oil & Gas sector:
- Seamless Pipe (ASTM B165): Preferred for high-pressure applications like downhole tubing and wellhead components.
- Electric Fusion Welded (EFW) Pipe (ASTM B474): An economical and robust solution for larger diameter process piping, transfer lines, and slurry transport.
- Standard Specifications: ASTM B165, ASTM B163 (Tubing), ASTM B474, ASTM B725
- Sizes: We can supply a wide range of diameters and wall thicknesses to meet process piping specifications.
Monel 400 Chemical Composition
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | 63.0 min |
| Copper (Cu) | 28.0-34.0 |
| Iron (Fe) | 2.5 max |
| Manganese (Mn) | 2.0 max |
| Silicon (Si) | 0.5 max |
| Carbon (C) | 0.3 max |
| Sulfur (S) | 0.024 max |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 517-620 MPa (75-90 ksi) |
| Yield Strength (0.2% offset) | 172-345 MPa (25-50 ksi) |
| Elongation | 35% min |
| Hardness | 65-80 HRB |
Applications in the Oil, Gas, and Petrochemical Industries
- Downhole Components: Production tubing, casing, wireline components, and tools.
- Wellhead and Christmas Tree Components: Valves, stems, fasteners, and fittings.
- Process Piping: For handling sulfuric acid, hydrofluoric acid, and other corrosive process streams in refineries.
- Alkylation Unit Piping: Transfer lines, risers, and downcomers in HF alkylation units.
- Heat Exchanger and Condenser Tubes: For cooling and condensing corrosive process fluids.
- Marine and Offshore Applications: Seawater piping, pump shafts, and ballast systems on platforms and FPSOs (Floating Production Storage and Offloading units).
Contact Lork Group today to discuss your specific requirements, request a quote, or get technical data sheets. Our experts are ready to assist you in selecting the right material for your critical needs.
Click the contact icon below to communicate with our team online.

Do You Have Any Question?
Would you provide samples for free?
Yes. We provide samples for Free.
What Is The Minimum Order Quantity?
No Minimum Order Quantity
About product prices?
Prices vary from period to period due to cyclical changes in the price of raw materials.
How long does your delivery time take?
In general, our delivery time is within 5-21 days, and may be delayed if the demand is extremely large or special circumstances occur.
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