Nimonic 75 Round Bars for Industrial Furnaces, Turbines & High-Heat Process Plants
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When a Mumbai heat-treatment shop kept losing fixtures every six months in a carburizing furnace above 1000°C, the bottleneck was not their process—but the material: standard stainless baskets scaling and warping under load, forcing costly shutdowns. Switching to Nimonic 75 Round Bars for fixtures and support grids tripled campaign life, cut unscheduled stoppages by nearly 40%, and stabilized product quality for aerospace and oil & gas customers. For procurement heads, engineers, and hardware stores serving chemical, marine, pharma, and power plants, Alloy 75 has become the practical upgrade when traditional stainless or basic nickel alloys fail in the hot zone.
Nimonic 75 (UNS N06075, W.Nr. 2.4951 / 2.4630) is an 80/20 nickel-chromium alloy with controlled additions of titanium and carbon, originally developed for gas turbine blades in the 1940s. Its chemistry delivers excellent oxidation and scaling resistance together with medium-to-high strength at temperatures up to about 650–900°C, far beyond the safe range of many stainless grades. This makes it especially valuable in power-plant exhaust systems, industrial furnace muffles and liners, and land-based gas turbine structural components where temperature and flue chemistry punish conventional steels.
Compared with Inconel 600, Nimonic 75’s higher chromium and tailored titanium-carbon levels give stronger scale adherence and significantly better hot-corrosion behavior in some studies, with up to ~160% improved resistance versus other nickel alloys in aggressive environments. Because of its composition and thermal conductivity characteristics, Nimonic 75 can also transfer heat slightly differently than Inconel 600, improving stability of furnace internals in continuous-duty lines. For procurement teams balancing capex and downtime, this translates into longer intervals between changeouts and lower life-cycle cost per kilogram compared to “cheaper” but short-lived options.
As a trusted supplier, manufacturer, and stockist, Aurico Alloys LLP provides affordable, best-quality, authentic Nimonic 75 Round Bars with full traceability for chemical, oil & gas, marine, pharma, and power generation projects, as well as hardware and industrial supply stores. Positioned as Nimonic 75 round bar suppliers in Mumbai and exporters from India to abroad, we support clients with MTC EN 10204 3.1, project-wise heat mapping, and cut-to-length bar solutions aligned to furnace, turbine, and process-equipment drawings.
High-quality Nimonic 75 Round Bars ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP – Nimonic 75 round bar suppliers in Mumbai |
|---|---|
| Grade | Nimonic 75 (Alloy 75, UNS N06075, W.Nr. 2.4951 / 2.4630) |
| Standards | BS HR 5, BS HR 504, DIN 17752, ISO 9723-25 |
| Diameter Range | 6mm – 200mm (larger diameters on request) |
| Length | 100mm – 6000mm, cut-to-size for furnace and turbine parts |
| Finish | Hot rolled, peeled, centreless ground, machined |
| Certification | MTC EN 10204 3.1, PMI, heat treatment chart, as applicable |
| Price | INR 3,000 – 5,500 per kg. Indicative USD 35 – 65 per kg; quoted against grade, form, size and quantity. |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N06075 |
| Werkstoff / EN number | 2.4951 / 2.4630 |
| Density | 8.37 g/cm3 |
| Melting range | 1340-1380 °C |
| Specific heat (20 °C) | 461 J/kg·°C |
| Thermal conductivity (20 °C) | 11.7 W/m·°C |
| Electrical resistivity (20 °C) | 1.09 µΩ·m |
| Rod and bar specification | BS HR 5 / HR 504 / DIN 17752 |
Identifiers and physical constants for Nimonic 75. A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico Alloys LLP maintains Nimonic 75 bar stock in popular furnace and turbine sizes, with Nimonic 75 bar price per kg in Mumbai optimized for high-volume users in heat-treating fixtures and baskets. Custom cut-to-size Nimonic 75 rods are supplied for oil refinery heater support structures, power-plant exhaust hanger bars, and thermocouple protection tube blanks using UNS N06075 nickel alloy rods in India.
Chemical Composition (UNS N06075)
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | — | Balance |
| Chromium (Cr) | 18.0 | 21.0 |
| Titanium (Ti) | 0.2 | 0.6 |
| Carbon (C) | 0.08 | 0.15 |
| Iron (Fe) | — | 5.0 |
| Manganese (Mn) | — | 1.0 |
| Silicon (Si) | — | 1.0 |
| Copper (Cu) | — | 0.5 |
Composition limits for Nimonic 75. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Mechanical & Physical Properties
| Property | Typical Value (Bar, F65 / Annealed) |
|---|---|
| Tensile Strength (RT) | ≥650–750 MPa |
| Yield Strength (0.2% offset) | ≥240–275 MPa |
| Elongation | ≥25–42% |
| Hardness | ≤230 HBW |
| Stress Rupture (650°C, 100 h) | ≈70–130 MPa depending on product form |
| Max Service Temperature | ≈650°C continuous; higher for short-term exposure |
Applications & Benefits
Why this grade
Nimonic 75 is an 80/20 nickel-chromium alloy with titanium stabilisation, and it is solid-solution strengthened only — it cannot be significantly age-hardened. That is precisely why it is chosen: it forms and welds readily with no solution-treat-and-age cycle and no strain-age cracking risk, which makes it the sheet-metal grade for gas turbine combustion hardware, furnace parts and heat-treatment fixtures.
- Industrial Furnaces & Power Plants: Nimonic 75 round bar suppliers in Mumbai for industrial furnace muffles and liners; high-temperature oxidation resistant Alloy 75 bars for power plant exhaust systems and stack internals.
- Gas Turbine & Aerospace: BS HR 5 Nimonic 75 round bars for land-based gas turbine structural components and brackets; Nimonic 75 round bar stockist in Mumbai for aircraft engine exhaust ducting and weldable combustion-chamber hardware.
- Marine & Naval: Marine grade Alloy 75 round bars for offshore platform turbine hot-sections and corrosion-resistant Nimonic 75 rods for high-heat naval propulsion parts in exhaust and uptakes.
- Chemical, Pharma & Oil & Gas: Nimonic 75 bars for chemical reactors requiring resistance to carbonization, durable Alloy 75 round bars for pharmaceutical high-heat sterilization tunnels, and custom cut-to-size Nimonic 75 rods for oil refinery heater support structures.
- Instrumentation & Reliability: UNS N06075 nickel alloy rods for specialized thermocouple protection tubes in India, offering stable performance in carburizing and oxidizing atmospheres.
- Certification & Supply Chain: Verified Nimonic 75 stockholders in India with MTC EN 10204 3.1 certification; Nimonic 75 round bar exporters in Mumbai serving global jet engine MRO facilities and process OEMs.
FAQ & Search Trends
Global Export Destinations
We ship worldwide from Mumbai. See every destination we export to on our export markets page.
Domestic Supply Network
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Nimonic 75 Round Bars from Aurico Alloys LLP provide proven high-temperature strength, oxidation resistance, and fabrication flexibility that help chemical, oil & gas, marine, pharma, and power plants run hotter for longer with fewer unplanned shutdowns so are your furnaces, turbines, and reactor supports still relying on commodity alloys instead of upgrading to Nimonic 75 performance?