Nimonic 75 is an 80/20 nickel-chromium alloy with controlled additions of titanium and carbon. First introduced in the 1940s for turbine blades in the prototype Whittle jet engines, it is now mostly used for sheet applications calling for oxidation and scaling resistance coupled with medium strength at high operating temperatures. It is still used in gas turbine engineering and also for industrial thermal processing, furnace components and heat-treatment equipment, It is readily fabricated and welded.
Common Trade Names:
Alloy 75 , NC20T, UNS NO6075, Nicrofer 7520, Nimonic 75, W.Nr. 2.4951&2.4630
Nimonic 75 Characteristic
Good corrosion resistance
Good heat resistance
High temperature static applications
Specifications：
| Rod, Bar, Wire and Forging Stock | BS HR 5, BS HR 504, DIN 17752, AECMA PrEN2306, AECMA PrEN2307, AECMA PrEN2306, AECMA Pr EN2307, AECMA PrEN2402, ISO 9723, ISO 9724, ISO 9725, MSRR 7004 |
|---|---|
| Plate, Sheet, Strip | BS HR 203, DIN 17750, AECMA PrEN2293, AECMA PrEN2302, AECMA PrEN2411, ISO 6208, MSRR 7104 |
| Pipe and Tube | BS HR 403, DIN 17751, AECMA PrEN2294, ISO 6207 |
| Other | DIN 17742, AECMA PrEN2308, Werkstoff Nr 2.4630, W. Nr 2.4951, UNS N06075, Nimonic 75 (tradename), MSRR 7104 and MSRR 7004, AFNOR NC 20T |
Nimonic 75 Chemical Composition
| Element | C | Si | Mn | S | Co | Cr | Cu | Fe | Pb | Ti | P | Al | Ni |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min % | 0.08 | – | – | – | – | 19 | – | – | – | 0.2 | – | – | - |
| Max % | 0.15 | 0.3 | 1 | 0.15 | 5 | 21 | 0.5 | 5 | 0.005 | 0.5 | 0.015 | 0.4 | balance |
Nimonic 75 Physical Properties
| Density | Melting range |
|---|---|
| 8.37 g/cm³ | 1340-1380°C |
Nimonic 75 Mechanical Properties
| Material | Test Temp °F | Ultimate Tensile Strength (ksi) | 0.2 % Yield Strength (ksi) | Elongation in 2" |
|---|---|---|---|---|
| Alloy 75 Sheet 1925°F Anneal | Room | 114.4 | 59.4 | 31 |
| Alloy 75 Sheet 1925°F Anneal | 1000 | 105.6 | 51.9 | 27 |
| Alloy 75 Sheet 1925°F Anneal | 1200 | 69.3 | 40 | 32 |
| Alloy 75 Sheet 1925°F Anneal | 1400 | 41.4 | 22 | 75 |
| Alloy 75 Sheet 1925°F Anneal | 1600 | 20.2 | 9.9 | 90 |
| Alloy 75 Sheet 1925°F Anneal | 1800 | 9.7 | 4.4 | 91 |
Nimonic 75 Available Shape
Bars & Rods & Foring Ring /Flanges
Sheet & Plate
Strip & Coil
Welding Wire &Spring wire
Seamless Tube & Welded Pipe
Nimonic 75 Size Range
»Round Bar & Square Bar & Hexagon Bar
● Diameter : φ8～φ300mm Length:10mm-6000mm
● Hot forging, Hot Rolling, Cold Drawing
● Bright Surface, Polished Surface, Black Surface
»Tube & Pipe:Seamless Tube& Welded Pipe
● Cold Drawing Seamless Pipe： φ1.0～φ220mm
● Hot Extrusion pipe: φ50～φ250mm
● Others : U Blend Tube and Elbow
»Hot Rolled Plate & Cold Rolled Sheet
● Cold Rolling Sheet Thickness: ≦2.0mm Width:≦1500m
● Hot rolling Plate Thickness: ≧4.0mm Width: ≦2500m
»Strip & Tape Ribbon
● Thickness: ≧ 0.01mm Width: 15mm-300mm
● Cold rolling BA Strip, Hard & Soft Condition
»Straight Length Wire & Spool Wire
● Welding Wire: φ 0.1mm～6.0mm Cut length Rod: φ1.0～φ8.0mm
● Package : 5-25kg/Spool or Box
Nimonic 75 Applications
Aerospace fasteners
Gas turbine engineering
Industrial furnace structural parts
Heat treatment equipments
Nuclear engineering.
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.
