Monel 400 Plate
It is highly valued across heavy industries for its exceptional corrosion resistance,high mechanical strength,and excellent durability in punishing environments—particularly in marine engineering and chemical processing.
Key Performance Strengths
- Marine Corrosion Resistance:
Immune to chloride stress corrosion cracking.Resists rapidly flowing, turbulent seawater.Defies bio-fouling in splash zones. - Acid and Alkali Defense:
Survives hydrofluoric acid across all concentrations.Withstands boiling hydrochloric and sulfuric acids.Resists severe non-oxidizing alkaline salts. - Broad Temperature Window:
Maintains high ductile strength in cryogenic subzero temperatures.Resists oxidation and scaling up to 1,000°F (538°C).Does not undergo a brittle transition when cold. - High Mechanical Toughness:
Exhibits excellent impact strength and fatigue resistance.Hardens effectively through cold working processes.Maintains structural shape under high-pressure loads.
Applications of Monel 400 Plate
- Offshore Cladding
- Marine Pumps
- Chemical Tanks
- Distillation Towers
- Heat Exchangers
- Boiler Components
- Brine Chambers
- Vessel Linings
- Nuclear Processing
- Desalination Parts
- Alkylating Units
- Chlorine Piping
- Subsea Fasteners
- Tower Trays
- Splash Shields
- Pump Impellers
Chemical Composition of Monel 400 Plate
| Ni + Co | Cu | Fe | Mn | Si | C | S |
|---|---|---|---|---|---|---|
| ≥ 63.0 | 28.0 – 34.0 | ≤ 2.5 | ≤ 2.0 | ≤ 0.5 | ≤ 0.3 | ≤ 0.024 |
Why is Cobalt Included in The Nickel Percentage?
Can Monel 400 Suffer From Sensitization Like Stainless Steel?
Does The Sulfur Content Affect Weldability?
Monel 400 Standards & Equivalent Designations
| Monel 400 Alloy | |
|---|---|
| Standard / System | Equivalent Designation |
| UNS Number | UNS N04400 |
| DIN / German Werkstoff | W.Nr. 2.4360 |
| EN Chemical Name | NiCu30Fe |
| JIS | NW 4400 |
| AFNOR | Nu-30 |
| Generic Trade Name | Alloy 400, Monel 400 |
- Plate, Sheet & Strip:ASTM B127 / ASME SB127
- Seamless Pipe & Tube:ASTM B165 / ASME SB165
- Welded Pipe & Tube:ASTM B725 / ASME SB725
- Rod, Bar & Wire:ASTM B164 / ASME SB164
- Forgings & Forged Flanges:ASTM B564 / ASME SB564
- Pipe Fittings:ASTM B366 / ASME SB366
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Mechanical Properties of Monel 400 Plate
| Temper | Annealed | Stress-Relieved | Hard / Cold-Rolled |
|---|---|---|---|
| Tensile Strength | ≥ 480 MPa ≥ 70 ksi | ≥ 585 MPa ≥ 85 ksi | ≥ 690 MPa ≥ 100 ksi |
| Yield Strength | ≥ 195 MPa ≥ 28 ksi | ≥ 380 MPa ≥ 55 ksi | ≥ 620 MPa ≥ 90 ksi |
| Elongation | ≥ 35 % | ≥ 15 % | ≥ 2 % |
| Hardness | 60 – 75 HRB | 85 – 95 HRB | ≥ 95 HRB |
Elastic and Shear Modulus
- Elastic Modulus:
179 GPa to 182 GPa, 26.0 × 10³ to 26.4 × 10³ ksi - Shear Modulus:
65.5 GPa, 9.5 × 10³ ksi - Poisson’s Ratio:
0.32
Modulus Variation with Elevated Temperatures
| Temperature | Elastic Modulus | Shear Modulus |
|---|---|---|
| 70°F (20°C) | 179 GPa (26.0 × 10³ ksi) | 65.5 GPa (9.5 × 10³ ksi) |
| 200°F (100°C) | 180 GPa (25.4 × 10³ ksi) | 64.1 GPa (9.3 × 10³ ksi) |
| 400°F (205°C) | 174 GPa (24.7 × 10³ ksi) | 62.1 GPa (9.0 × 10³ ksi) |
| 600°F (315°C) | 168 GPa (24.0 × 10³ ksi) | 60.0 GPa (8.7 × 10³ ksi) |
| 800°F (425°C) | 161 GPa (23.3 × 10³ ksi) | 57.9 GPa (8.4 × 10³ ksi) |
| 1000°F (540°C) | 154 GPa (22.2 × 10³ ksi) | 55.2 GPa (8.0 × 10³ ksi) |
Our Advantages in Manufacturing Monel 400 Plate
Advanced Vacuum Melting
Utilizing Vacuum Induction Melting and Vacuum Arc Remelting ensures exceptionally clean steel with minimal gas content.
Eliminates non-metallic inclusions to maximize the material’s structural integrity.
Guarantees precise balancing of nickel and copper ratios to maximize uniform corrosion resistance.
High-Precision Gauge & Planarity Control
Advanced rolling mills achieve dimensional tolerances well exceeding baseline ASTM B127 standards.
Integrated hydraulic leveling technologies eliminate internal residual stresses and edge waves.
Continuous automated thickness checking guarantees zero variation across massive structural plates.
Customized Heat Treatment & Tempers
Capable of supplying plates customized to precise client requirements across Annealed,Stress-Relieved,or Hard tempers.
Utilizing bright annealing furnaces with protective atmospheres ensures a clean,oxide-free surface finish.
Programmed thermal profiling guarantees uniform mechanical properties from the plate surface down to its core.
Stringent Non-Destructive Testing
Level III certified technicians perform 100% ultrasonic testing to detect internal laminations or micro-voids.
Utilizing dye penetrant testing ensures zero microscopic surface cracks before shipment.
Every plate is issued with a complete mill test report covering chemical,mechanical,and grain-size analysis.
FAQs About Monel 400 Plate
No.Monel 400 lacks chromium,making it highly vulnerable to oxidizing environments like nitric acid,nitrous gases,and ferric chloride.It is best suited for reducing environments.
It is virtually immune to chloride-induced SCC.However,it can experience stress cracking in the presence of mercury or moist hydrofluoric acid vapor if high internal tensile stresses are present.
Use AWS ERNiCu-7 for Gas Tungsten Arc Welding (GTAW/TIG) and Gas Metal Arc Welding (GMAW/MIG),or ENiCu-7 covered electrodes for Shielded Metal Arc Welding (SMAW/Stick).
We offer Monel 400 sheet metal that complies with the ASTM B127 / ASME SB127 standards.The most common delivery condition is hot-rolled,annealed,and pickled;however,we can also provide cold-rolled,annealed,and polished/bright-finished,stress-relieved,and hardened conditions.
We use strict export-grade protective packaging to ensure that the panels remain free of warping, scratches,and rust during both ocean and land transport.Before shipment,the panels are fully covered with protective film to prevent surface scratches.We also use high-density industrial waterproof fabric and include desiccants inside the packaging.Steel straps are used to reinforce the pallets.For high-precision thin sheets and small-sized cut pieces,we exclusively use sealed plywood crates designed specifically for export.
Contact Us
- RM901 No.22 Tangjiaqiao Road Wenzhou China
- +86 577 8551 1171
- [email protected]
- https://www.kaysuns.com/
