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Product Overview
Introduction To Nimonic Alloys
MOKSH TUBES & FITTINGS LLP is a leading supplier, stockist, and exporter of high-performance Nimonic Alloys, known for their exceptional resistance to heat, oxidation, and corrosion. These nickel-chromium-based superalloys are engineered for extreme temperature applications where mechanical strength and structural stability are vital—especially in aerospace, gas turbines, nuclear reactors, and high-stress environments.
Nimonic Alloys are primarily composed of Nickel (Ni) and Chromium (Cr), often combined with Titanium (Ti) and Aluminum (Al) for precipitation hardening. Popular grades include Nimonic 75, 80A, 90, 105, 263, and others—each suited to specific mechanical and thermal requirements.
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Chemical Composition of Common Nimonic Grades
| Element | Nimonic 75 | Nimonic 80A | Nimonic 90 | Nimonic 105 | Nimonic 263 |
|---|---|---|---|---|---|
| Ni | ≤ 20% | ≤ 30% | ≤ 30% | ≤ 30% | ≤ 20% |
| Cr | ≤ 3% | ≤ 3% | ≤ 3% | ≤ 5% | ≤ 3% |
| Co | Present | ≥ 2.5% | ≤ 5% | ≤ 5% | ≤ 5% |
| Ti | ≥ 0.6% | ≤ 0.5% | ≤ 0.5% | ≤ 0.5% | ≤ 0.5% |
| Al | ≥ 0.6% | ≤ 0.5% | ≤ 0.5% | ≤ 0.5% | ≥ 1.0% |
| Mo | Present | Present | Present | ≤ 1.0% | ≤ 1.0% |
| Fe | ≥ 10% | ≥ 5% | ≥ 5% | ≥ 5% | ≥ 2% |
| Others | No C, Mn, Si, Cu, S | No B, Zr, C, Mn | No B, Zr, C, Mn | No B, Zr, C, Mn | Excludes C, Mn, Si; adds P, Sn |
📌 Composition varies by grade. Contact us for full datasheets of Nimonic 80A, 90, 105 & 263.
Mechanical Properties – Nimonic 75 (Typical)
| Property | Annealed | Hot-Finished | Cold-Drawn | Hot-Rolled | Sheet |
|---|---|---|---|---|---|
| Tensile Strength | 620–830 MPa | 896–1172 MPa | 1034–1379 MPa | 690–965 MPa | 620–896 MPa |
| Yield Strength (0.2%) | 414–620 MPa | 758–1034 MPa | 965–1240 MPa | 483–758 MPa | 414–620 MPa |
| Elongation | 15–30% | 8–15% | 5–10% | 15–25% | 20–30% |
| Brinell Hardness | 180–220 | 250–300 | 300–350 | 200–250 | 180–220 |
| Rockwell Hardness | 60–70 B | 80–90 B | 90–95 B | 70–80 B | 65–75 B |
Uses and Advantages
Superior resistance to heat creep and fatigue
Excellent oxidation and corrosion resistance at high temperatures
High strength-to-weight ratio
Good weldability and workability (especially Nimonic 263)
Long-term dimensional and structural stability
Applications of Nimonic Alloys
Chemical Processing
Oil & Gas
Marine
Pharmaceutical
Heat Exchangers
Power Plants
WHY CHOOSE US?
FAQ's
What are Nimonic Alloys used for?
Nimonic Alloys are used in turbine blades, combustion chambers, exhaust systems, gas turbines, nuclear reactors, high performance automotive components, and industrial furnace parts requiring superior heat and corrosion resistance.
Which grades of Nimonic Alloys are available?
Popular grades include Nimonic 75, 80A, 90, 105, and 263, each engineered for specific mechanical strength, thermal performance, and structural stability under extreme conditions.
What are the key properties of Nimonic Alloys?
Nimonic Alloys offer excellent heat creep resistance, oxidation and corrosion resistance, high strength to weight ratio, dimensional stability, and good weldability, especially in Nimonic 263.
In what forms are Nimonic Alloys supplied?
They are supplied as seamless and welded pipes, tubes, sheets, plates, coils, strips, round/flat/hex/square bars, pipe fittings, flanges, fasteners, and custom engineered components.
Why choose MOKSH TUBES & FITTINGS for Nimonic Alloys?
We provide ISO 9001:2015 certified Nimonic products with wide inventory availability, custom fabrication, CNC machining, fast turnaround, competitive pricing, and global shipping with export compliance.
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Contact Moksh Tubes & Fittings LLP — for expert support, MTC-certified materials, and custom solutions.
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