Jul 4 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Fabrication and Heat Treatment
Other Designations
Applications
Introduction
Nickel alloy C263 is an aluminum-titanium age hardening nickel base superalloy welding wire. It has high corrosion resistance and strength, good formability and high temperature ductility in welded structures. It is resistant to strain age cracking problems, which is common for other gamma prime strengthened alloys.
The following section will discuss in detail about nickel alloy C263.
Chemical Composition
The chemical composition nickel alloy C263 is outlined in the following table.
|
Element |
Content (%) |
|
Chromium, Cr |
19-21 |
|
Cobalt, Co |
19-21 |
|
Molybdenum, Mo |
5.6-6.1 |
|
Aluminum+Titanium, Al+Ti |
2.4-2.8 |
|
Titanium, Ti |
1.9-2.4 |
|
Iron, Fe |
0.7 |
|
Manganese, Mn |
0.6 |
|
Silicon, Si |
0.4 |
|
Aluminum, Al |
0.3-0.6 |
|
Copper, Cu |
0.2 |
|
Phosphorus, P |
0.015 |
|
Sulfur, S |
0.007 |
|
Boron, B |
0.005 |
|
Lead, Pb |
0.002 |
|
Silver, Ag |
0.0005 |
|
Bismuth, Bi |
0.0001 |
|
Nickel, Ni |
Balance |
Physical Properties
The following table shows the physical properties of nickel alloy C263.
|
Properties |
Metric |
Imperial |
|
Density |
8.359 g/cm3 |
0.302 lb/in3 |
|
Melting point |
1300-1335°C |
2372-2471°F |
Mechanical Properties
The mechanical properties of nickel alloy C263 are displayed in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength (annealed) |
344.74 MPa |
50000 psi |
|
Yield strength (annealed) |
90.321 MPa |
13100 psi |
|
Elongation at break (annealed) |
45% |
45% |
Thermal Properties
The thermal properties of nickel alloy C263 are given in the following table
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@204.4°C/400°F) |
12.06 µm/m°C |
6.7 µin/in°F |
Fabrication and Heat Treatment
Nickel alloy C263 can be machined using high speed tools. Care must be taken to ensure a rigid machine setup and sharp tools, in order to prevent work hardening and surface glazing. It has excellent welding characteristics, and can be welded by most of the common welding techniques such as electron beam and resistance welding, gas metal arc welding and inert gas tungsten arc welding. Following this, the alloy is aged for 8 h at 799°C (1470°F) and air cooled.
Other Designations
Other designations that are equivalent to nickel alloy C263 include the following:
-
AMS 5872
-
AMS 5966
-
AMS 5872E
-
EN 2.4650
-
GE B50A783
-
GE B50A771
-
RR 9500/16
-
Werkstoff 2.4650
Applications
Nickel alloy C263 is used in the manufacture of gas turbines for casings, rings and other sheet fabrications.