Unifit Fastener is a trusted manufacturer, stockist and global exporter of Monel 400 Fasteners offering exceptional resistance to seawater, acidic media and high-stress environments. As industries push the limits of engineering performance, choosing the right fastening material becomes mission-critical. That’s where Monel 400 fasteners, crafted from a solid-solution nickel-copper alloy step in as the corrosion-resistant, mechanically robust solution for the most demanding applications. Whether you operate in offshore drilling, chemical processing, power generation or aerospace, our precision-engineered UNS N04400 fasteners are your assurance of strength, longevity and international quality compliance.
Request QuoteWhat is Monel 400?
Monel 400, also known by its UNS number N04400 is a nickel-copper alloy composed primarily of 67% nickel and 23% copper. It offers excellent resistance to saltwater, hydrofluoric acid, alkalis and stress corrosion cracking. Due to its solid solution alloy structure, Monel 400 cannot be hardened by heat treatment but can be strengthened through cold working.
It’s this unique chemical structure and metallurgical balance that make Monel 400 fasteners highly suitable for applications where both mechanical strength and corrosion resistance are paramount.
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Why Choose Monel 400 Fasteners from Unifit?
When it comes to applications that demand strength, corrosion resistance and long-lasting performance, Monel 400 fasteners are a trusted choice. At Unifit, we bring together engineering excellence, global standards and customer-focused flexibility to deliver fasteners that perform under pressure, literally:
- In-House Forging and Precision Machining: Manufactured with advanced in-house forging and CNC machining for exceptional dimensional accuracy.
- ISO 9001:2015 Certified Facility: Our quality control processes align with globally recognized standards for consistent product integrity.
- Compliance with ASTM, ASME, DIN & ISO Standards: Each fastener meets stringent technical specifications ensuring compatibility with global systems.
- Rapid Global Dispatch: We ensure quick turnaround times and on-time deliveries worldwide.
- Custom Sizes & Threading Options Available: Need something specific? We offer custom-built fasteners to meet exact application needs.
Monel 400 Fasteners Equivalent Grades
Understanding the equivalent grades of Monel 400 helps ensure you can select the right material for your application while maintaining cost-efficiency and performance. Here’s a list of equivalent grades to Monel 400 across different international standards:
| Monel 400 | Equivalent Grades |
|---|---|
| UNS N04400 | ASTM B164, ASTM B564, DIN 2.4360 |
| Alloy 400 | BS 3075 NA 13, JIS NW 2200 |
| Monel 400 | EN 2.4360 |
| Monel Alloy 400 | AFNOR NC 22-2 |
Monel 400 Fastener Types Offered by Unifit
We manufacture and export a wide range of Monel 400 Fasteners in various forms:
- Monel 400 Structural Bolts
- Monel 400 Heavy Hex Bolts
- Monel 400 Hex Bolts
- Monel 400 Hexagon Head Bolts
- Monel 400 Machine Bolts
- Monel 400 T Bolts
- Monel 400 Eye Bolt
- Monel 400 Foundation Bolts
- Monel Alloy 400 J Bolts
- Monel 400 Button Head Bolt
- Monel 400 Anchor Bolts
- Monel 400 Long Bolts
- Monel 400 Carriage Bolt
- Monel 400 Elevator Bolt
- Monel 400 Timber Bolts
- Monel 400 Square Bolt
- Monel 400 Metric Bolt
- Monel 400 Plow Bolts
- Monel 400 U Bolts
- Monel 400 Flange Bolts
- Monel 400 Hex Nuts
- Monel 400 Heavy Hex Nuts
- Monel 400 Wing Nuts
- Monel 400 Hexagon Nuts
- Monel 400 Cap Nuts
- Monel 400 Square Nuts
- Monel 400 Coupling Nuts
- Monel 400 Hex Jam Nuts
- Monel Alloy 400 T-Nuts
- Monel Alloy 400 Eye Nuts
- Monel 400 Nylock Nuts
- Monel 400 High Tensile Nuts
- Monel 400 Cage Nuts
- Monel 400 Dome Nuts
- Monel 400 Knurled Nuts
- Monel 400 Keps-K Lock Nuts
- Monel 400 Machine Hex Nuts
- Monel 400 Slotted Nuts
- Monel 400 Plain Washers
- Monel 400 Spring Washers
- Monel 400 Locking Washer
- Monel 400 Split Washer
- Monel Alloy 400 Flat Washers
- Monel 400 Ogee Washers
- Monel 400 Fender Washer
- Monel 400 Conical Washers
- Monel 400 Serrated Washer
- Monel 400 Tab Washers
- Monel 400 Hex Washer
- Monel 400 Countersunk Washer
- Monel Alloy 400 Dock Washers
- Monel 400 Spring Lock Washer
- Monel 400 Star Washer
- Monel Bonded sealing Washer
- Monel 400 Square Washers
- Monel 400 Belleville Washer
- Monel 400 Socket Set Screw
- Monel 400 Self Drilling Screw
- Monel 400 Socket Head Cap Screw
- Monel 400 Hex Head Screws
- Monel 400 Wood Screw
- Monel 400 Eye Screw
- Monel 400 Wing Screw
- Alloy 400 Self Tapping Screws
- Monel 400 Roofing Screw
- Monel 400 Phillips Head Screw
- Monel 400 Decking Screw
- Monel 400 Machine Screw
- Monel 400 Thumb Screw
- Monel 400 Drywall Screws
- Monel 400 Metric Set Screws
- Monel 400 Sems Screw
- Monel 400 Thread Rolling Screw
Monel 400 Fasteners Chemical Composition
Monel 400 Fasteners are known for their excellent resistance to corrosion, especially in marine and chemical environments. Their performance and durability are largely due to their unique chemical composition. Below is the standard chemical composition of Monel 400 which gives it the mechanical strength and resistance properties it’s valued for:
| Element | Content (%) |
|---|---|
| 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 |
| Sulphur (S) | 0.024 max |
This precise chemical composition delivers uniform corrosion resistance and thermal stability even in harsh conditions.
Monel 400 Fasteners Mechanical Properties
Monel 400 fasteners combine high strength with excellent corrosion resistance, making them ideal for demanding applications in chemical processing, marine and aerospace industries. Below is a table summarizing the key mechanical properties:
| Property | Value |
|---|---|
| Tensile Strength | ≥ 550 MPa |
| Yield Strength (0.2% Offset) | ≥ 170 MPa |
| Elongation | ≥ 35% |
| Hardness | 65 HRB max |
| Melting Range | 1300–1350 °C |
Note: Cold-working can significantly improve yield strength based on application.
Monel 400 vs Monel K500 Fasteners
Below is a comparison between Monel 400 and Monel K500 fasteners, highlighting their key differences to help you choose the right material for your specific application:
| Property | Monel 400 Fasteners | Monel K500 Fasteners |
|---|---|---|
| Composition | Nickel-Copper alloy (approx. 67% Ni, 30% Cu) | Monel 400 + Aluminum & Titanium |
| Mechanical Strength | Moderate tensile strength (~70 ksi) | Higher tensile strength (~140 ksi, age-hardened) |
| Hardness | Lower hardness | Greater hardness due to precipitation hardening |
| Corrosion Resistance | Excellent in seawater, acids, and alkalis | Similar corrosion resistance, better in high-velocity water |
| Magnetic Properties | Slightly magnetic at room temperature | Non-magnetic in annealed condition |
| Applications | Heat exchangers, marine fasteners, chemical equipment | Pump shafts, marine propeller shafts, oil & gas equipment |
| Machinability | Moderate (gummy nature, work hardens) | More challenging due to higher strength |
| Weldability | Good with proper techniques | Fair; preheating and post-weld treatment recommended |
Monel 400 Fasteners Specifications
| Specification | Details |
|---|---|
| Standard | ASTM B164, ASTM F467, ASME SB-164 |
| UNS Designation | N04400 |
| W.Nr. | 2.4360 / 2.4361 |
| Forms | Forged, Machined, CNC-turned |
| Available Threads | Metric (MM), Unified (UNC/UNF), BSP, NPT |
Looking for DIN or ISO Monel 400 equivalents? We offer complete DIN 933, DIN 931 and ISO 4014 compatible options.
Industrial Applications of Monel 400 Fasteners
Monel 400 fasteners are essential in industries requiring high corrosion resistance and strength. Key applications include:
- Marine & Offshore
- Chemical Processing
- Aerospace
- Oil & Gas
- Power Generation
- Food & Beverage
- Pharmaceutical
- Marine & Chemical Equipment
Monel 400 fasteners excel in environments demanding durability and corrosion resistance.
Request a Quick Quote for Monel 400 Fasteners
Looking for Monel 400 fasteners for your next project? We offer fast, competitive quotes and provide customized solutions tailored to your specific needs. Our high-quality fasteners are made to meet industry standards and are delivered on time ensuring your project stays on track.
To get a quote, simply fill out the form below with your fastener type, required quantity and specifications. If you have specific delivery requirements include that information as well. Our team will respond promptly with the details you need. Let us help you find the perfect fastener solution for your project.
Request QuoteGlobal Manufacturer, Trusted Supplier & Exporter of Monel 400 Fasteners
At Unifit Fasteners, we don’t just manufacture, we deliver performance you can trust. As a leading Monel 400 Fasteners manufacturer, supplier and exporter we serve global industries with precision-engineered UNS N04400 fasteners built for extreme conditions.
Backed by decades of expertise and advanced facilities in India, we cater to both large-scale and custom requirements with full traceability and international compliance. From marine and offshore to chemical and energy sectors, Unifit ensures fast turnaround, reliable quality and export-ready documentation tailored to your region.
Choose Unifit - your dependable link in the global fastener supply chain!
Frequently Asked Questions About Monel 400 Fasteners
What is the HS Code of Monel 400 Fasteners?
The typical HS Code is 75051200 (Nickel Bars, Rods, Profiles, and Wires) and 731815 (Bolts, Nuts of other Base Metal).
What is the price of Monel 400 Fasteners?
Prices vary based on size, quantity, and certification requirements. Reach out to us for a custom quote with best bulk pricing.
Are Monel 400 Fasteners Magnetic?
No, Monel 400 is generally non-magnetic at room temperature, making it suitable for instrumentation and sensitive assemblies.
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