Monel 400 Pipe Factory Direct Sales
Core Features
- Excellent Corrosion Resistance:
Demonstrates exceptional performance in seawater,steam,and solutions of salt and caustic soda. - High strength:
Maintains good strength across a wide temperature range from extremely low (sub-zero) to approximately 538°C (1000°F). - Processing Characteristics:
As a solution-strengthened alloy,it can only be hardened through cold working (e.g., cold rolling) and cannot be hardened by heat treatment.
Monel 400 Pipe Equivalent Designations
- UNS N04400
- W.Nr. 2.4360 , 2.4361
- EN NiCu30Fe
- JIS NW 4400
- BS NA 13
- AFNOR NU-30M
- GOST МНЖМц 28-2,5-1,5
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Chemical Composition of Monel 400 Pipe, wt.%
| Element | Ni(+Co) | Cu | Fe | Mn | C | Si | S |
|---|---|---|---|---|---|---|---|
| Monel 400 | 63.0 Min | 28.0 – 34.0 | 2.5 Max | 2.0 Max | 0.3 Max | 0.5 Max | 0.024 Max |
Key Point Explanation
- Ni + Co:
Standards typically permit small amounts of cobalt to be accounted for within the nickel content,as their chemical properties are extremely similar. - Iron Content:
Although present in low quantities,controlled iron content enhances the alloy’s resistance to corrosion. - Low Impurities:
Extremely low sulfur and carbon content ensure the pipeline’s stability during welding and in high-temperature environments.
Why are “Ni” and “Co” Listed Together in The Composition of Monel 400?
Mechanical Properties of Monel 400 Pipe
| Supply Condition | Tensile Strength | Yield Strength | Elongation | Hardness |
|---|---|---|---|---|
| Annealed | 517 – 620 MPa | 172 – 345 MPa | 35% – 60% | 60 – 80 HRB |
| Hot-Finished | 552 – 758 MPa | 276 – 690 MPa | 30% – 60% | 75 – 100 HRB |
| Cold-Drawn/SR | 579 – 827 MPa | 379 – 690 MPa | 22% – 40% | 85 HRB – 20 HRC |
Other Key Mechanical Parameters
- Young’s Modulus:Approximately 179–182 GPa at 20°C.
- Poisson’s Ratio:Approximately 0.32.
- Shear Strength:Approximately 65% of tensile strength in the annealed state.
- Low-Temperature Performance:Strength and hardness increase at subzero temperatures with minimal reduction in toughness and no brittle transition, making it highly suitable for cryogenic applications.
Can Monel 400 be Strengthened Through Heat Treatment, Such As Quenching?
Applications of Monel 400 Pipe
- HF Alkylation Units
- Marine Engineering
- Desalination Plants
- Offshore Splash Zone Sheathing
- Power Plant Feedwater Heaters
- Caustic Soda Processing
- Crude Oil Distillation
- Cryogenic Piping
- Salt Production
- Chlorinated Solvent Production
FAQs About Monel 400 Pipe
Its most prominent feature is its multifunctional corrosion resistance.It performs well in both reducing media (such as hydrofluoric acid and sulfuric acid) and oxidizing media (such as seawater).Notably,it is one of the most ideal metals for handling hydrofluoric acid.
At room temperature,Monel 400 exhibits slight magnetic properties.Its Curie point (magnetic transition temperature) is very close to room temperature,causing its magnetism to fluctuate with minor variations in temperature and composition.For applications requiring complete magnetic neutrality (such as certain electronic devices), Monel K-500 is typically selected.
Yes.It exhibits excellent weldability.Common welding methods include GTAW (TIG) and GMAW (MIG).
Note:
The weld joint must be thoroughly cleaned prior to welding to remove impurities such as sulfur,lead,and phosphorus,otherwise hot cracks may easily form. ERNiCu-7 welding wire or ENiCu-7 welding rod is typically used.
Many metals resist corrosion in stationary seawater but suffer erosion corrosion in high-velocity seawater flows.Monel 400 forms a dense protective film that maintains an extremely low corrosion rate even in environments with extremely high flow velocities,such as pump pipes and propeller areas.
We supply seamless pipes ranging from 1/2“ to 24” / 6 mm to 610 mm,and welded pipes from 6“ to 104” / 159 mm to 2800 mm.Equipped with state-of-the-art facilities and over a decade of manufacturing expertise,we offer fast and flexible delivery schedules.We accept small-batch orders and can integrate with other products to provide comprehensive solutions.
Contact Us
- RM901 No.22 Tangjiaqiao Road Wenzhou China
- +86 577 8551 1171
- [email protected]
- https://www.kaysuns.com/
