Alloy 901 Nickel Alloy Technical Specifications

Standards

Mat. No. 2.4975
EU NiFeCr12Mo
AISI/ASTM -
UNS N09901
Other Alloy 901
Nimonic 901
Incoloy 901
Alloy 2.4061 / Alloy 205 / Alloy 201 is identical to Nickel 200 alloy, except it has a lower °carbon content that prevents intergranular carbon accumulation and embrittlement at 315°C.
The low carbon ratio reduces the hardness and makes it suitable for cold forming.

Chemical Composition & Mechanical and Physical Properties

C% 0.10 max
Mn% 2.00 max
P% 0.01 max
S% 0.020 max
Si% 0.60 max
Cr% 11.00-14.00
Ni% 40.00-45.00
Mo% 5.00-7.00
Ti% 2.35-3.10
AI% 0.35 max
Co% 1.00 max
Fe% Rest
0.2 % Yield Strength Rp N/mm2 835 min
Tensile Strength Rm N/mm2 1180 min
Elongation A5 % 15 min
Max. Resisting Temperature °C 850
Tensile Strength (1000 hours)
540 °C 800 MPa
595 °C 600 MPa
650 °C 450 MPa
705 °C 300 MPa
760 °C 200 MPa

Application areas

In aviation gas turbine discs and shafts.

Specifications

BS HR55
SAE AMS 5660, 5661, AMS 5830
AECMA Pr EN 2176 – 2178
ISO 9723, 9725
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