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Nimonic Threaded Bars Overview
Aurum Overseas is a premier Nimonic Threaded Bars Supplier & Exporter, stocking precipitation-hardenable nickel-chromium superalloy fasteners for extreme thermal service. Engineered to maintain high tensile strength and creep resistance at operating temperatures up to 815 °C (1500 °F), these studs prevent thermal relaxation in gas turbines.
Our inventory includes certified Nimonic Alloy Threaded Bars across key grades including Nimonic 80A, Nimonic 90, and Nimonic 75. Formulated with high Nickel-Chromium matrices enriched with Titanium, Aluminum, and Cobalt, these studs withstand continuous cyclic stress in combustion zones.
Built for gas turbine bolting, nuclear hardware, and furnace supports, our studs deliver long-term joint reliability. Contact Aurum Overseas, a trusted Nimonic Threaded Bars Supplier & Exporter, for quotes and fast global delivery.
Technical Specifications
| Technical Parameter | Specification Standard |
|---|---|
| Material Specifications | BS 3076, BS HR1, BS HR601, ASTM B637, EN 10204 3.1 |
| Grade Options | Nimonic 80A (UNS N07080), Nimonic 90 (UNS N07090), Nimonic 75 (UNS N06075) |
| Thread Size Range | M6 to M64 (1/4" to 2.5" Nominal Diameter) |
| Thread Profiles | UNC, UNF, UNEF, Metric Coarse, Metric Fine, Precision Precision Threads |
| Length Options | 1,000 mm, 2,000 mm, Custom Cut-to-Length All-Thread Studs |
| Thermal Operating Range | Up to 815 °C (1500 °F) continuous service |
| HSN Code | 75089090 |
Chemical Composition & Grade Equivalents
Grade Equivalents
| Alloy Grade | Werkstoff Nr. | UNS Designation | Standard Specification |
|---|---|---|---|
| Nimonic 80A | 2.4631 | N07080 | ASTM B637 / BS 3076 |
| Nimonic 90 | — | N07090 | BS HR2 / BS HR502 |
| Nimonic 75 | — | N06075 | BS HR5 / BS HR504 |
Chemical Composition (%)
| Element | Nimonic 80A (UNS N07080) | Nimonic 90 (UNS N07090) | Nimonic 75 (UNS N06075) |
|---|---|---|---|
| Nickel (Ni) | Balance | Balance | Balance |
| Chromium (Cr) | 18.0 – 21.0 | 18.0 – 21.0 | 18.9 – 21.0 |
| Cobalt (Co) | — | 15.0 – 21.0 | — |
| Titanium (Ti) | 1.8 – 2.7 | 2.0 – 3.0 | 0.2 – 0.6 |
| Aluminum (Al) | 1.0 – 1.8 | 1.0 – 2.0 | — |
| Iron (Fe) | 3.0 max | — | 5.0 max |
| Carbon (C) | 0.10 max | 0.20 max | 0.08 – 0.15 |
| Manganese (Mn) | 1.0 max | 1.0 max | 1.0 max |
| Silicon (Si) | — | 1.0 max | — |
| Copper (Cu) | 0.2 max | 0.2 max | 0.5 max |
Key Advantages of Nimonic Threaded Rods
1500 °F Heat & Creep Defense
High Nickel-Chromium matrix prevents studs from stretching or losing tension under continuous high-temperature loads.
Cobalt-Strengthened High Stress (Nimonic 90)
15–21% Cobalt addition provides extra strength for extreme turbine stress environments.
Hot Combustion Gas Protection
18–21% Chromium forms a tight protective surface layer that stops hot gas oxidation and corrosion decay.
Thermal Fatigue Resistance
Sub-microscopic precipitation hardening stops micro-cracking and thread relaxation during rapid heat cycles.
Quality Testing & Inspection
Aurum Overseas subjects every batch of superalloy threaded rods to rigorous testing to ensure full compliance with international standards:
- Chemical & Material Verification (PMI): Spectro and XRF testing verifying precise elemental ratios against ASTM and BS specifications.
- Mechanical & High-Heat Testing: Tensile, yield, stress-rupture, and Rockwell C hardness testing mapped to operating heat requirements.
- Precision Thread Inspection: Thread micrometer and Go/No-Go gage checks ensuring 2A/3A and 6g fit tolerances.
- Certifications: Delivered with EN 10204 3.1 Material Test Reports certifying chemical heat analysis and physical property test results.
Global Export Markets
As an established Nimonic Threaded Bars Exporter, Aurum Overseas supplies fully certified Nimonic alloy threaded rods to global gas turbine, aerospace, and high-temperature applications:
USA
Canada
Mexico
Germany
United
Kingdom
France
Italy
Netherlands
Belgium
Spain
Poland
UAE
Saudi
Arabia
Qatar
Kuwait
Oman
Bahrain
Frequently Asked Questions
Nimonic 80A is a classic gamma-prime hardened alloy for high stress up to 815 °C; Nimonic 90 adds 15-21% Cobalt for even higher heat capability; Nimonic 75 is a ductile, solid-solution strengthened grade focused on oxidation resistance.
They are used in gas turbine rotor bolting, turbine blade studs, exhaust valve hardware, nuclear reactor cores, and high-temperature furnace structural supports.
Yes. As an established Nimonic Threaded Bars Exporter, we supply orders across the UAE, Saudi Arabia, Qatar, Oman, Kuwait, and Bahrain.
Yes. As a leading Nimonic Threaded Bars Supplier, we export certified Nimonic fasteners to power generation and aerospace customers across the USA, Canada, Germany, the UK, and Europe.
Contact Aurum Overseas
Contact Aurum Overseas, a premier Nimonic Threaded Bars Supplier & Exporter, for certified Nimonic 80A, 90, and 75 threaded rods, cut-to-length studs, and fast global shipping.