Table of Contents
- Monel Fasteners Overview
- Monel Fasteners Specifications
- What are Monel 400 Nuts?
- Monel Fasteners Technical Properties & Composition
- Why Industries Prefer Monel 400 Nuts
- Types of Monel 400 Nuts
- Key Advantages of Monel 400 Nuts
- Key Applications of Monel 400 Nuts
- Quality Testing & Inspection
- Global Export Markets
- Frequently Asked Questions
- Contact Aurum Overseas
Monel 400 Nuts Suppliers & Exporters
Aurum Overseas is a prominent Monel 400 Nuts Supplier and Monel 400 Nuts Exporter, supplying solid-solution nickel-copper fasteners engineered for marine, chemical, and offshore environments.
Manufactured to ASTM B164 UNS N04400 Nuts standards, these high-strength components deliver resistance to rapidly flowing seawater, hydrofluoric acid, sulfuric acid, and alkaline streams across sub-zero to elevated temperature applications.
As an established Monel 400 Nuts Exporter, Aurum Overseas supplies fully certified and traceable bolting materials across North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy, Netherlands, Norway), the Middle East (UAE, Saudi Arabia, Qatar, Kuwait, Oman), and Asia-Pacific (Singapore, Malaysia, Australia).
Monel Fasteners Specifications
| Parameter | Specification / Technical Range |
|---|---|
| Material Grade | Monel 400 / Alloy 400 |
| UNS Number | UNS N04400 |
| Werkstoff Number | 2.4360 |
| Common Trade Names | Monel Alloy 400 / Nickel-Copper 400 / N04400 |
| Manufacturing Standards | ASTM B164, ASME SB164, DIN 934, ISO 4032, ANSI B18.2.2 |
| Size Range | M3 to M100 | 3/16" to 4" | Custom Dimensions |
| Thread Configuration | ASME B1.1 2A/3A - 2B/3B Unified (UNC, UNF, 8UN) & B1.13M Metric |
| Nut Formats | Hex Head, Heavy Hex, Square, Lock, Slotted, Coupling, Flange Nuts |
| Testing Standards | ASTM E8, SAE J411, EN 14399, ASME B1.2, ISO 7090, DIN 125 |
What are Monel 400 Nuts?
UNS N04400 Nuts are nickel-copper binary alloy fasteners crafted for structural fastening in brackish water, marine splash zones, and non-oxidizing acid processing operations.
Produced in full compliance with ASTM B164 UNS N04400 Nuts standards, this alloy consists of approximately 63% minimum nickel and 28% to 34% copper. This composition provides immunity to chloride-induced stress corrosion cracking and prevents biofouling in submerged marine infrastructure.
Monel Fasteners Technical Properties & Composition
Chemical Composition of Monel 400 Nuts (%)
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 63.00 min |
| Copper (Cu) | 28.00 – 34.00 |
| Iron (Fe) | 2.50 max |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 0.50 max |
| Carbon (C) | 0.30 max |
| Sulfur (S) | 0.024 max |
Physical & Mechanical Properties of Monel 400
| Property / Parameter | Value |
|---|---|
| Density | 8.8 g/cm³ |
| Melting Point | 1350°C (2460°F) |
| Tensile Strength | 550 MPa / 80,000 Psi |
| Yield Strength (0.2% Offset) | 240 MPa / 35,000 Psi |
| Elongation (%) | 40% |
Equivalent Grade Standards
| Grade | Standard | Werkstoff Nr. | UNS | EN / ISO | JIS |
|---|---|---|---|---|---|
| Monel 400 | ASTM B164 | 2.4360 | N04400 | NiCu30Fe | NW 4400 |
Why Industries Prefer Monel 400 Nuts
Marine and chemical process engineers choose Monel 400 Nuts for their toughness across cryogenic temperatures and resistance to fast-moving seawater velocity.
As a leading Monel 400 Nuts Supplier, Aurum Overseas delivers precision fasteners that maintain mechanical toughness down to sub-zero temperatures without undergoing a ductile-to-brittle transition, making them suitable for liquid gas processing and cold-climate offshore rigs.
Types of Monel 400 Nuts
Aurum Overseas supplies a comprehensive range of Monel 400 nut configurations manufactured according to standard DIN, ASME, and ISO dimensional tolerances for multiple engineering assemblies.
Monel 400 Hex Head Nuts
Monel 400 Square Nuts
Monel 400 Lock Nuts
Monel 400 Eye Nuts
Monel 400 Wing Nuts
Monel 400 T Nuts
Monel 400 Panel Nuts
Monel 400 Coupling Nuts
Monel 400 Dome Nuts
Key Advantages of Monel 400 Nuts
Resistance to Flowing Seawater
Resists erosion, cavitation, and pitting in high-velocity marine currents.
Hydrofluoric Acid Service
Performs in hydrofluoric acid alkylation plants under non-aerated conditions.
Cryogenic Impact Toughness
Retains high mechanical strength and ductility in sub-zero operational environments.
Resistance to Alkalies
Resists caustic soda, anhydrous ammonia, and alkaline chemical solutions.
Non-Magnetic Properties
Exhibits low magnetic permeability, preventing interference in sensitive marine navigational equipment.
Key Applications of Monel 400 Nuts
| Industry Sector | Primary Fastener Application | Key Service Environment |
|---|---|---|
| Marine & Offshore Engineering | Propeller shaft mountings, pump impellers, seawater piping | High-velocity seawater, splash zones, and submerged hull assemblies |
| Chemical Processing | Hydrofluoric (HF) acid alkylation units, reboilers | Anhydrous hydrofluoric acid, organic solvents, and caustic streams |
| Oil & Gas Extraction | Subsea riser clamps, heat exchanger bolting | Sour gas wells, brine solutions, and high-pressure hydrocarbon streams |
| Desalination Plants | High-pressure brine pumps, evaporator vessel flanges | Concentrated hot salt brine and aggressive marine chemical feeds |
Quality Testing & Inspection
Aurum Overseas implements rigorous quality control measures for all shipments delivered as a trusted Monel 400 Nuts Supplier and Monel 400 Nuts Exporter.
- Chemical Verification: XRF spectrometry and Positive Material Identification (PMI) to confirm exact nickel and copper ratios.
- Mechanical Testing: Room and sub-zero tensile, yield, and elongation testing per ASTM E8 standards.
- Dimensional Precision: Thread fit verification per ASME B1.2, ANSI B18.2.2, and ISO standards.
- Traceable Documentation: Complete EN 10204 3.1 Material Test Reports supplied with every order, confirming chemical heat analysis and physical properties.
Global Export Markets
As a global Monel 400 Nuts Exporter, Aurum Overseas supplies fully certified nickel-copper hardware to shipbuilding, oil gas, and desalination facilities worldwide.
USA
Canada
Mexico
Germany
United Kingdom
France
Italy
Netherlands
Norway
UAE
Saudi Arabia
Qatar
Kuwait
Oman
Singapore
Malaysia
Australia
Frequently Asked Questions
Monel 400 nuts are nickel-copper alloy fasteners containing a minimum of 63% nickel and 28% to 34% copper.
UNS N04400 Nuts are manufactured from nickel-copper alloy rod and bar conforming to ASTM B164 UNS N04400 Nuts material standards.
Yes, Monel 400 nuts offer resistance to rapidly flowing seawater, pitting, and biofouling in marine and subsea environments.
Yes, as a global Monel 400 Nuts Exporter, Aurum Overseas ships certified fasteners across North America, Europe, the Middle East, and Asia-Pacific.
We supply Unified imperial threads (UNC, UNF, 8UN) and Metric threads (M3 to M100) per ASME B1.1 and ISO specifications.
Contact Aurum Overseas
Aurum Overseas delivers precision Monel 400 Nuts manufactured to strict international quality standards with rapid global delivery options.
Contact our technical sales department today for project inquiries and prompt price quotations.