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Material

Nimonic 75 UNS N06075 2.4951 2.4630 Alloy






Nimonic Alloy 75 (UNS N06075) is a nickel-chromium alloy with good mechanical properties and oxidation resistance at high temperature. Alloy 75 is most commonly used for sheet metal fabrications which require oxidation and scaling resistanc together with medium strength at high operating temperature.  Alloy 75 is also used in gas turbine engines, for components of industria furnaces, for heat treating equipment and fixtures, and in nuclear engineering.

Alloy Wire International Ltd. is a U.K. wire manufacturer specialising in the production of high performance alloys, mainly Nickel Alloys, but including Cobalt and Titanium Alloys. These alloys might be used in any environment that requires resistance to heat and corrosion but where the mechanical properties of the metal must be retained. Nimonic 75 Nimonic 75 is a Nickel-Chromium alloy with good corrosion resistance and heat resistance.

Nimonic 75 is a grade of Nimonic that is used in applications where corrosion resistance and heat resistant is key. Aerospace fasteners, for instance, include Nimonic 75 because it can withstand the huge amounts of pressure and high temperature found in such applications.It is often used for sheet-metal fabrications in gas-turbine engines, for components of industrial furnaces, for heat treating equipment and fixtures, and in nuclear engineering.

NIMONIC® alloy 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 temperature. It is still used in gas turbine engineering and also for industrial thermal process, furnace component and heat-treatment equipment. It is readily fabricated and welded.


GB 14992 GB 15062 GH3030 Chemical composition (%)
KhN78T ( ХН78Т ) - Hidh-temperature or heat-resistant alloy
Grade C Si Mn Ti S Ni Cr Cu Fe
GH3030 ≤0.12 ≤0.8 ≤ 0.7 0.15~0.35 ≤0.015 Bal. 19~22 ≤0.2 ≤1.5


Nimonic 75 UNS N06075 Chemical Composition
Weight % Ni Cr Ti C Si Cu Fe Mn
Alloy 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

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
Plate, Sheet, Strip BS HR 203, DIN 17750, AECMA PrEN2293, AECMA PrEN2302, AECMA PrEN2411, ISO 6208
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

Typical Mechanical Properties Alloy 75
Rupture Strength (1000 h)
Temperature psi MPa
760°C / 1400° F 6000 40
815°C / 1500°F 3500 24
870°C / 1600°F 2200 15
925°C / 1700°F 1500 10
980°C / 1800°F 1200 8
This material was Annealed
Properties of Supplied Materials and Heat Treated Materials

Condition of Supply Heat Treatment (After Forming)
Annealed/Spring Tempered
Stress relieve at 450 - 470°C (840 - 880°F) for 30 - 60 minutes and air cool.
Condition Approx Tensile Strength Approx Service Temp.
Solution Annealed
700 - 800 N/mm2
102 - 116 ksi
-200 to +1100°C -330 to +2010°F
 
(for lightly stressed applications)
Cold Drawn
1200 - 1500 N/mm2
174 - 218 ksi
-200 to +1100°C -330 to +2010°F
 
 
 
(for lightly stressed applications)


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