Characteristic: long service life
Standard: ASME, ASTM, EN, UNS, GB, DIN, JIS
Certification: ISO, CE, ROHS,
Payment Terms: T/T, L/C, Paypal, Western Union
This alloy is widely used in aeroengine in foreign countries and the ground gas turbine under 650 ℃ work rotating parts and fasteners, a longer service life. It is also used in aviation engines, and is a mature alloy that has been tested.
Alloy forging, if the process parameter is selected or operated not right, its performance will show the obvious direction, and may cause the notch sensitivity, but as long as the strict process, this phenomenon will not occur. The expansion coefficient of the alloy is close to that of the iron alloy steel, so that the two materials can be connected to the heat account without special provisions.
Nimonic 901 | |||||||
Chemical Composition | |||||||
C | Cr | Ni | Mo | Al | Ti | Fe | B |
0.02~0.06 | 11.0~14.0 | 40.0~45.0 | 5.0~6.5 | ≤0.30 | 2.8~3.1 | remainder | 0.01~0.02 |
Mn | Si | P | S | Cu | Bi | Pb | Ag |
≤0.50 | ≤0.40 | ≤0.020 | ≤0.008 | ≤0.20 | ≤0.0001 | ≤0.001 | ≤0.0005 |
Nimonic 901Thermal Properties | |||||||||||||||||||||
θ/℃ | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 | |||||||||||
λ/（W/（m·C）） | 12.0 | 13.5 | 15.1 | 16.7 | 18.2 | 19.8 | 21.2 | 22.8 | 24.3 | 25.1 | |||||||||||
Coefficient of Linear Expansion | |||||||||||||||||||||
θ/℃ | 20~100 | 20~200 | 20~300 | 20~400 | 20~500 | 20~600 | 20~700 | 20~800 | 20~900 | ||||||||||||
α/10-6C-1 | 13.5 | 14.0 | 14.4 | 14.9 | 15.1 | 15.2 | 15.5 | 16.0 | 16.5 | ||||||||||||
Thermal Diffusivity | |||||||||
θ/℃ | 20 | 100 | 150 | 250 | 350 | 450 | 550 | 650 | 950 |
Q/（10-6m2/S）） | 2.66 | 2.93 | 3.00 | 3.18 | 3.47 | 3.73 | 3.78 | 4.02 | 4.11 |
Electrical Resistivity | ||||||||||
θ/℃ | 20 | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 |
p/（10-6Ω.M）） | 1.073 | 1.095 | 1.132 | 1.162 | 1.199 | 1.229 | 1.254 | 1.275 | 1.309 | 1.316 |
Nimonic 901 Oxidation Resistance: the oxidation rate after 100 hours of experiment in the air medium.
Chemical Performance | |||||
θ/℃ | 600 | 700 | 800 | 900 | 1000 |
Oxidation rate（g/(m3·h）） | 0.0072 | 0.014 | 0.0522 | 0.1665 | 0.2367 |
Density: ρ=8.21g/cm3
Magnetic Energy Type: Alloy nonmagnetic.
Decay resistance: The alloy is prone to corrosion resistance in hydrochloric acid solution.
The Nimonic 901alloy has good thermal forming property.
Forge
The larger ingot is not allowed to cool directly to room temperature, but should be moved directly into the forging furnace to prevent cooling and reheating through the aging temperature range. Ingots should be forged to the maximum length of 205mm square billet, and then quickly cold and trim. When forging, the technological parameters should be strictly controlled to prevent the occurrence of serious and uneven grain size, which can ensure the stable performance.
Weld
Argon arc welding can be done with Nimonic 901 alloy wire.
Part heat treatment process.
The heat treatment of engine turbine disc should avoid heating too fast.
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