C263

C263

Alloy C263 is an aluminum-titanium age hardening nickel base superalloy welding wire. Gas tungsten arc welding is normally carried out using argon shielding gas. Argon +5% hydrogen has been used. Alloy C263 base metal is normally welded in the annealed condition 2100°F, rapid cool). After welding, the assembly may be aged 8 hours at 1470°F, air cool. Repair welding of alloy C263 components may be done in the age hardened condition.

Chemistry

 CrNiMoCoAlTiAl+TiBCFeMnSiPSAgBiPbCu
MIN 19   5.6 19.0 0.3 1.9 2.4 - 0.01 - - - - - - - - -
MAX 21.00 Balance 6.10 21.00 0.60 2.40 2.80 0.005 0.08 0.70 0.60 0.40 0.015 0.007 0.0005 0.0001 0.002 0.20

Specifications

AMS 5872, AMS 5872E, AMS 5966
EN 2.4650
GE B50A771, GE B50A783
RR 9500/16
UNS N07263
Werkstoff 2.4650

Inventory

C263 Plate, C263 Sheet, C263 Welding Products

Common Trade Names

Cobalt 263, Nimonic® Alloy C263,

Features

  • High strength as age-hardened

Applications

  • Welding 263 base metal
  • Welding GTD222 investment castings

Physical Properties

Density: 0.302 lb/in3
Melting Range: 2372-2471°F

Temperature, °F 400 800 1000 1200 1400 1600 1800
Coefficient* of Thermal Expansion,
in/in°F x 10-6
6.7 7.4 7.7 8.1 8.7 9.6 10.2

* 70°F to indicated temperature.

Nimonic® is a registered trademark of Special Metals Corp.