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Monel 400 Sheet: Premium Quality from China Manufacturer
Monel 400 Sheet is a nickel-copper alloy celebrated for its outstanding corrosion resistance and strength. With ~67% nickel and ~23% copper, this Monel 400 plate thrives in harsh seawater and acidic environments, making it a go-to for marine, chemical, and oil/gas applications. Its durability and adaptability shine through every sheet.
Price: Contact Us for a Custom Quote
Curious about Monel 400 Sheet pricing? Reach out at sales for a personalized quote. Our Monel 400 plate offers competitive rates with exceptional performance.
Specifications of Monel 400 Sheet
Our Sheet comes in various configurations:
- Standards: ASTM B127, ASME SB127, UNS N04400
- Thickness: 0.018″ – 3″ (0.46 mm – 76.2 mm)
- Width: Up to 48″ (1219 mm)
- Length: Customizable, up to 144″ (3658 mm)
- Surface Finish: Annealed, polished, or as-rolled
Key Features (Advantages)
- Exceptional resistance to seawater and acids
- High strength and toughness at sub-zero temps
- Easy to weld and machine
- Non-magnetic with excellent thermal conductivity
- Reliable in extreme conditions
Applications of Monel 400 Sheet
- Marine: Shipbuilding, heat exchangers
- Chemical: Acid storage tanks, piping
- Oil & Gas: Offshore platform components
- Aerospace: Exhaust system parts
- Power: Steam generator tubing
Chemical Composition of Monel Alloy 400
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | 63.0 - 70.0 |
| Copper (Cu) | 28.0 - 34.0 |
| Iron (Fe) | ≤ 2.5 |
| Manganese (Mn) | ≤ 2.0 |
| Carbon (C) | ≤ 0.3 |
| Silicon (Si) | ≤ 0.5 |
| Sulfur (S) | ≤ 0.024 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 480 - 600 MPa |
| Yield Strength | 172 - 345 MPa |
| Elongation | ≥ 35% |
| Hardness (HB) | 110 - 150 |
Chemical Properties
Monel 400 Plate resists hydrochloric and hydrofluoric acids in de-aerated conditions and handles alkalis well. It struggles in oxidizing environments like nitric acid or ammonia-rich settings, where corrosion accelerates.
Things to Note (Limitations)
- Loses strength above 538°C (1000°F)
- Vulnerable to nitric acid attack
- Work-hardens quickly, needing careful machining
- Pricier than stainless steel alternatives
Corrosion Data for Monel Metal 400
| Environment | Corrosion Rate (mm/year) | Test Conditions | Factors Affecting Corrosion |
|---|---|---|---|
| Atmospheric (Air) | 0.002 – 0.01 | Ambient, 20-25°C, 50% humidity | Humidity, sulfur presence |
| Seawater (Flowing) | < 0.05 | 25°C, aerated, high velocity | Velocity, fouling |
| Seawater (Stagnant) | 0.1 – 0.3 | 25°C, stagnant, under deposits | Stagnation, crevice conditions |
| Sulfuric Acid (10%) | 0.1 – 0.2 | 25°C, de-aerated | Aeration, temperature |
| Hydrochloric Acid (10%) | 0.1 – 0.25 | 25°C, de-aerated | Concentration, aeration |
| Hydrofluoric Acid (50%) | 0.05 – 0.15 | 25°C, unaerated, up to boiling | Aeration, temperature |
| Nitric Acid (10%) | 0.5 – 1.0 | 25°C, oxidizing environment | Concentration, oxidizing agents |
| Caustic Soda (50%) | 0.02 – 0.05 | 100°C, de-aerated | Temperature, concentration |
Welding and Manufacturing Tips
- Welding: TIG/MIG with ERNiCu-7 filler; clean post-weld to prevent embrittlement.
- Forming: Hot-work at 648-1176°C; cold-work for shaping.
- Machining: Use sharp tools, low speeds—Monel 400 Sheet hardens rapidly.
Customer Reviews
Frequently Asked Questions
Q: How does Monel 400 compare to stainless steel?
A: Monel 400 outperforms stainless steel in corrosion resistance—especially in seawater and acids—and holds up better at sub-zero temps, making it ideal for tough environments.
Q: What’s the best use for Monel 400 Plate?
A: Marine and chemical applications—think heat exchangers and acid tanks. Our factory in China supplies Monel 400 plate perfect for these demanding settings.
Q: Is Monel 400 better than titanium?
A: Monel 400 excels in acid resistance and ductility (≥ 35% elongation) compared to titanium’s higher strength but lower formability—great for corrosive, not lightweight, needs.
Q: Can Monel 400 Plate withstand high temperatures?
A: Yes, up to 538°C—beyond that, Monel 400 Sheet loses strength, so it’s best for moderate heat scenarios.
Q: How weldable is Monel 400?
A: Very! TIG with ERNiCu-7 filler keeps your Monel 400 plate strong and corrosion-resistant—just clean post-weld for top results.