Rene 41∞

Available in any of the 'profile options'

Rene 41 is an age hardenable nickel base alloy that has very high strength at elevated temperatures, particularly within the range of 650 – 980^oC (1200 – 1800^oF). Required mechanical properties can be tailored by selection of various combinations of cold work and/or heat treatments. Rene 41 also has good oxidation resistance.

Rene 41 is also known as Haynes R-41, Pyromet 41, and Udimet R41.

Chemical Composition

Specifications

Designations

Key Features

Typical Applications

Element	Min %	Max %
C	–	0.12
Mn	–	0.10
Si	–	0.50
S	–	0.015
Cr	18.00	20.00
Co	10.00	12.00
Mo	9.00	10.50
Ti	3.00	3.30
Al	1.40	1.60
B	0.003	0.01
Fe	–	5.00
Ni	bal

AMS 5545
AMS 5713
AMS 5800
AMS 5712
GE C50T71

W.Nr 2.4973
UNS N07041
AWS 120

Very high strength at elevated temperatures
Good oxidation resistance
Age hardenable
High temperature dynamic applications^{^^}

After burner parts
Turbine castings
Bolts
Other fasteners

Density	8.25 g/cm³	0.298 lb/in³
Melting Point	1345°C	2450°F
Coefficient of Expansion	13.6 μm/m °C (20 – 100°C)	7.41 x 10^-6 in/in °F (70 – 212°F)
Modulus of Rigidity	83.2 kN/mm²	12067 ksi
Modulus of Elasticity	218.0 kN/mm²	31619 ksi

Heat Treatment of Finished Parts
Condition as supplied by Alloy Wire	Type	Temperature		Time (Hr)	Cooling
Condition as supplied by Alloy Wire	Type	°C	°F	Time (Hr)	Cooling
Annealed	Age Harden	760	1400	16	Air
Spring Temper	Solution Anneal Age Harden	1065 760	1950 1400	4 16	Air Air
Spring Temper	Age Harden	760	1400	16	Air

Properties
Condition	Approx. tensile strength		Approx. operating temperature depending on load^^ and environment
Condition	N/mm²	ksi	°C	°F
Annealed	800 – 1100	116 – 159
Annealed + Aged	1350 – 1550	196 – 225	up to +550	up to +1020
Spring Temper	1400 – 1800	203 – 261
Spring Temper + Annealed + Aged	1350 – 1550	196 – 225	up to +550	up to +1020
Spring Temper + Aged	1600 – 2000	232 – 290	up to +550	up to +1020