What is Nimonic 75 mainly used for?
Sheet/plate and fabricated components in gas turbines, industrial furnaces and heat-treatment equipment where oxidation resistance and formability are priorities.
Is Nimonic 75 weldable?
Yes, when annealed, it is weldable with suitable nickel-based filler metals and qualified procedures. Post-weld anneal may be recommended for some applications.
What are the maximum continuous service temperatures?
Service ranges are typically up to ~600–700 °C for continuous service; brief excursions higher are possible depending on loading and environment.
Can it be heat-treated for additional strength?
Nimonic 75 is primarily solution-strengthened and frequently strengthened by cold work; it is not an age-hardenable alloy in the same way as some other Nimonic grades.
What is the chemical composition?
Ni balance; Cr 18–21%; Ti 0.2–0.6%; C 0.08–0.15%; Fe ≤5%; Si, Mn ≤1% each; Cu ≤0.5%. Confirm with MTC.
Is Nimonic 75 the same as Nimonic 80A?
No, 80A generally provides higher creep/strength at elevated temperatures; 75 favors formability and oxidation resistance. Choose based on required mechanical/cyclic life.
How should stock be specified for procurement?
State UNS/EN designation, product form, heat treatment condition, required mechanical properties, MTC level and any NDT requirement.
Typical density?
8.37 g/cm³ (≈ 8370 kg/m³). Useful for weight and cost conversions.
Can Nimonic 75 be cold-formed?
Yes - in annealed condition it forms well, but it work-hardens quickly; plan intermediate anneals for heavy forming.
Is it economical?
Relative to high-strength, age-hardenable superalloys, Nimonic 75 is cost-effective for oxidation-sensitive sheet/formed parts; however, it's a specialty nickel alloy so cost per kg remains significantly higher than steels. Market prices vary widely by region and certification.
Our product range
Our company specializes in the export of high-performance nickel-based alloys and special metal materials, offering a product line that covers diverse industrial applications such as high-temperature, corrosion-resistant, and high-strength scenarios. Our core products include nickel-based superalloys like Hastelloy, Inconel, and Incoloy, as well as super austenitic stainless steels, duplex steels, Monel alloys, cobalt-based alloys, and precision alloy series. These materials deliver exceptional performance under extreme conditions-such as high temperatures, strong corrosion, and high pressure-and are widely used in aerospace, energy and chemical engineering, marine engineering, and high-end equipment manufacturing. We provide global clients with reliable material solutions and technical support.
Our factory
Our factory is equipped with an advanced system of production and testing equipment, enabling full-process manufacturing capabilities from smelting and hot working to precision finishing. At the core of production, we utilize vacuum induction melting (VIM) and electroslag remelting (ESR) furnaces to ensure high purity and uniform composition of alloy materials. We also employ multi-directional forging presses, precision rolling mills, and continuous annealing lines to achieve precise forming of plates, tubes, bars, and wires. Quality assurance relies on testing equipment such as direct-reading spectrometers, scanning electron microscopes (SEM), high-temperature mechanical testing machines, and corrosion test chambers, which rigorously monitor compositional structure, mechanical properties, and corrosion resistance. Adhering to international standards such as ISO, ASTM, and ASME, our factory implements an intelligent management and control system throughout the entire production process, delivering high-performance, traceable premium alloy products to our clients.
