Alloy 75 (UNS N06075, Nimonic 75) is a 80/20 nickel-chromium alloy with controlled additions of titanium and carbon. Nimonic 75 has good mechanical properties and oxidation resistance at high temperatures. Alloy 75 is most commonly used for sheet metal fabrications which require oxidation and scaling resistance together with medium strength at high operating temperatures. Alloy 75 (Nimonic 75) is also used in gas turbine engines, for components of industrial furnaces, for heat treating equipment and fixtures, and in nuclear engineering.
Chemical Composition
| Chemical Composition Limits | ||||||||
| Weight% | Ni | Cr | Ti | C | Si | Cu | Fe | Mn |
| Alloy 75 Nimonic 75 |
Bal | 18.9 - 21.0 | 0.2 / 0.6 | 0.08 / 0.15 | 1.0 max | 0.5 max | 5.0 max | 1.0 max |
Typical 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 | 40.0 | 32 |
| Alloy 75 Sheet 1925°F Anneal | 1400 | 41.4 | 22.0 | 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 |
Availability
Alloy 75 (Nimonic 75) is available in Bar, Round Bar, Flat Bar, Plate, Strip, Sheet, Wire, Tube, Rod, Forging Stock and Extruded Section. For all stock availability contact Sales for further availability.
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 |
Our product range
| Product Form | Standard Specifications | Typical Sizes / Dimensions | Common Standards (Examples) |
|---|---|---|---|
| Sheet & Plate | Thickness: 0.5mm – 50mm Width: 1000mm – 2000mm Length: 2000mm – 6000mm |
• Coils / Strips • Cut-to-Length Sheets • Heavy Plates |
ASTM B168, B906 ASME SB168 EN 10095, DIN 17752 |
| Bar & Rod | Diameter: 6mm – 300mm Length: 3000mm – 6000mm (straight) |
• Round Bars • Hexagonal Bars • Square Bars • Forging Billets |
ASTM B166 (rod/bar) ASTM B564 (forgings) |
| Pipe & Tube | Seamless Pipe: OD 6mm – 300mm, SCH 5S to XXS Welded Tube: OD 10mm – 500mm, Wall as required Heat Exchanger Tube: OD 12.7mm – 50mm |
• Hydraulic & Instrumentation Tubing • Boiler & Heat Exchanger Tubes • Mechanical Tubing |
ASTM B167, B163, B517/B75 ASTM B622 (seamless) ASTM B619/B626 (welded) |
| Fittings & Flanges | Class: 150 LBS to 2500 LBS Schedules: Matching pipe specifications |
• Elbows (90°/45°) • Tees, Reducers, Caps • Socket Weld & Butt-Weld Fittings • Slip-On & Weld Neck Flanges |
ASTM SB366 ASME B16.9 / B16.5 MSS-SP-43 / SP-75 |
| Wire & Electrodes | Diameter: 0.5mm – 5.0mm (Wire) Standard Sizes (Covered Electrodes) |
• Welding Wire (spool, coil) • Filler Metal Rods • SMAW Electrodes |
AWS A5.14 / A5.11 EN ISO 18274 / 14172 |
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Our factory
Our factory is equipped with state-of-the-art production facilities. The facility features advanced melting and thermo-mechanical processing lines, including Vacuum Induction Melting (VIM) furnaces and precision rolling mills, which transform raw materials into high-performance alloy products in forms such as plates, sheets, tubes, and bars. To ensure that every product meets the most stringent international standards and customer drawing requirements, we operate an in-house laboratory with comprehensive testing capabilities. Testing includes spectrometric chemical analysis, mechanical property testing, and non-destructive testing (NDT) methods such as ultrasonic and penetrant inspection. Governed by a certified quality management system, our integrated production process-from raw materials to finished products-ensures full traceability and consistent quality assurance.
