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4140 4330 Mod4340 / E-43404620 Vac. / AMS 62946150 Vac. / AMS 6448AISI 9310300mMARAGING 350MARAGING 300MARAGING 250

2.4975

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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