Nimonic® C-263

Nimonic® C-263 is also known as Nicrofer 5120 CoTi, Haynes 263, and Hastelloy C-263.

W.Nr. 2.4650
UNS N07263
AMS 5872
AMS 5886
BS HR 10
BS HR 206
Excellent fabrication characteristics
in the annealed condition
Age Hardenable
High temperature static applications**
Parts in gas turbines
Sealing rings
Specifications
W.Nr. 2.4650
UNS N07263
AMS 5872
AMS 5886
BS HR 10
BS HR 206
Excellent fabrication characteristics
in the annealed condition
Age Hardenable
High temperature static applications**
Parts in gas turbines
Sealing rings

Chemical Composition

Element Min % Max %
C 0.04 0.08
Si – 0.40
Mn – 0.60
S – 0.007
Ag – 0.0005
AI 0.30 0.60
B – 0.005
Bi – 0.0001
Co 19.0 21.0
Cr 19.0 21.0
Cu – 0.20
Fe – 0.70
Mo 5.60 6.10
Pb – 0.002
Ti 1.90 2.40
Ti+AI 2.40 2.80
Ni Bal

Density

8.36 g/cm3 | 0.302 lb/in³

Melting Point

1325 °C | 2415 °F

Modulus of Elasticity

222.5 kN/mm² | 32270 ksi

Heat Treatment of Finished Parts

Condition as supplied by Alloy Wire Type Temperature Time (Hr) Cooling
°C °F
Annealed Age Harden 800 1475 8 hours Air
Spring temper Anneal
Age Harden		 1040 – 1165
800		 1900 – 2125
1475		 Suited to diameter
8 Hours		 Water or Air
Air

Properties

Condition Approx. tensile strength Approx. operating temperature
N/mm² ksi °C °F
Annealed 800 – 1000 116 – 145 up to 800 up to 1500
Annealed + Aged 1000 – 1200 145 – 174 up to 800 up to 1500
Spring Temper 1200 – 1500 174 – 217 up to 800 up to 1500
Spring Temper + Annealed + Aged 1000 – 1200 145 – 174 up to 800 up to 1500
The above tensile strength ranges are typical. If you require different please ask.

**Static application = Still/Fixed/Motionless/Rigid

®Trade name of Special Metals Group of Companies.