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Monel 400 Threaded Bars Overview
Aurum Overseas is a trusted Monel 400 Threaded Bars Supplier & Exporter, stocking solid-solution nickel-copper alloy fasteners manufactured to ASTM B164 specifications. Designed for harsh marine and chemical processing environments, these alloy studs deliver excellent toughness and corrosion resistance from sub-zero temperatures up to 538 °C (1000 °F).
Our inventory of ASTM B164 UNS N04400 Threaded Bars contains a high Nickel matrix (63.00% min) alloyed with 28.00–34.00% Copper. This precise ratio gives Monel 400 Threaded Rods immunity to chloride-induced stress corrosion cracking and superior resistance to rapidly flowing seawater, hydrofluoric acid, and alkalis.
Built for marine propulsion shafting, crude oil distillation towers, desalination pumps, and HF alkylation units, our UNS N04400 Threaded Rods deliver reliable, leak-tight joints under continuous dynamic loading. Contact Aurum Overseas for factory quotes, custom length sawing, and fast global delivery.
Technical Specifications
| Technical Parameter | Specification Standard |
|---|---|
| Material Specifications | ASTM B164, ASME SB164, EN 10204 3.1 |
| UNS Designation | UNS N04400 (Monel 400) |
| Thread Size Range | M6 to M100 (1/4" to 4.0" Nominal Diameter) |
| Thread Profiles | UNC, UNF, UNEF, Metric Coarse, Metric Fine, Acme Threads |
| Length Options | 1,000 mm, 2,000 mm, 3,000 mm, Custom Cut-to-Length All-Thread Studs |
| Thread Class / Fit | Class 2A / 3A (Imperial) & 6g / 6h (Metric Profile Tolerances) |
| HSN Code | 75089090 |
Chemical Composition & Mechanical Properties
Equivalent Standards
| Grade | Standard | W.Nr. | UNS | JIS | EN |
|---|---|---|---|---|---|
| Monel 400 | ASTM B164 | 2.4360 | N04400 | NW 4400 | NiCu30Fe |
Chemical Composition (%)
| Chemical Element | Monel 400 (UNS N04400) |
|---|---|
| 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 |
Mechanical & Physical Properties
| Property Parameter | Monel 400 (UNS N04400) |
|---|---|
| Density | 8.80 g/cm³ |
| Melting Point | 1350 °C (2460 °F) |
| Tensile Strength (Min) | 550 MPa (80,000 Psi) |
| Yield Strength (0.2% Offset, Min) | 240 MPa (35,000 Psi) |
| Elongation (Min) | 40 % |
Key Advantages of Monel 400 Threaded Rods
Seawater & Salt Protection
Resists rust, biofouling, and pitting in rapidly flowing seawater and splash zone environments.
Fights Strong Hydrofluoric Acid
Handles pure hydrofluoric acid and tough caustic alkalis without cracking or eroding.
Immunity to Stress Cracking
High Nickel content prevents studs from snapping under heavy load in salty or chloride environments.
Smooth & Secure Threading
Precision roll-threaded design prevents thread stripping and jamming during high-torque tightening.
Quality Testing & Inspection
Aurum Overseas subjects every shipment to full Quality Assurance protocols to ensure adherence to global fastener standards and customer specifications:
- Positive Material Identification (PMI): Spectro / XRF analysis confirming exact elemental composition per ASTM B164 specs.
- Dimensional & Thread Pitch Inspection: Go/No-Go gage testing and optical comparator checks ensuring 2A/3A and 6g thread fit tolerances.
- Mechanical Batch Testing: Tensile strength, yield strength, and elongation verification certified via EN 10204 3.1 Material Test Reports.
- Optional Specialized Inspections: Ultrasonic testing, proof load testing, or hardness verification provided upon request.
Global Export Markets
As an established Monel 400 Threaded Bars Exporter, Aurum Overseas supplies fully certified ASTM B164 UNS N04400 threaded rods to global marine, chemical processing, offshore, and desalination facilities:
USA
Canada
Mexico
Germany
United
Kingdom
France
Italy
Netherlands
Belgium
Spain
Poland
UAE
Saudi
Arabia
Qatar
Kuwait
Oman
Bahrain
Frequently Asked Questions
Monel 400 excels in hydrofluoric acid, non-oxidizing mineral acids, caustic alkalis, neutral salts, and rapidly flowing marine seawater.
No. Monel 400 is a reducing-environment alloy and experiences increased corrosion rates in strong oxidizing acids like nitric acid or in the presence of ferric/cupric salts.
They are used in marine propulsion hardware, offshore oil platforms, desalination plants, HF alkylation units in petroleum refining, and chemical heat exchangers.
Yes. As a leading Monel 400 Threaded Bars Exporter, we supply desalination plants, offshore drilling rigs, and refineries across the UAE, Saudi Arabia, Qatar, Oman, Kuwait, and Bahrain.
Contact Aurum Overseas
Contact Aurum Overseas, a premier Monel 400 Threaded Bars Supplier & Exporter, for certified ASTM B164 threaded rods, cut-to-length studs, and fast worldwide shipping.