Type
Analysis
|
Element
|
Min
|
Max
|
|
Carbon
|
0.04
|
0.08
|
|
Manganese
|
--
|
0.60
|
|
Silicon
|
--
|
0.40
|
|
Chromium
|
19.0
|
21.0
|
|
Nickel
|
Balance
|
|
Boron
|
--
|
0.005
|
|
Iron
|
--
|
0.70
|
|
Cobalt
|
19.0
|
21.0
|
|
Titanium
|
1.90
|
2.40
|
|
Aluminum
|
--
|
0.60
|
|
Molybdenum
|
5.60
|
6.10
|
|
Copper
|
--
|
0.20
|
|
Sulfur
|
--
|
0.007
|
|
Silver
|
--
|
0.0005
|
|
Bismuth
|
--
|
0.0001
|
|
Al + Ti
|
2.40
|
2.80
|
Description
Haynes Alloy 263 is a age-hardenable Nickel/Cobalt/Chromium/Molybdenum alloy designed
to have very good aged strength properties, with excellent fabrication characteristics when supplied
in the annealed condition. The alloy is primarily used for applications up to 1650°F (900°C).
This material is typically supplied in the annealed condition, and is aged by the customer as part of the
fabrication process.
Physical
Properties
Specific Heat(J/kg, °C)................................. 461
Density
lb/cubic in. ......................................... 0.302
g/cubic meter ................................... 8.36
Melting Range
Temp., °F................2370-2470
Temp., °C................1300-1355
Modulus of Elasticity
|
Temperature
|
ksi
x 10(3)
|
GPa
|
|
°F
|
°C
|
|
Room
200
400
600
800
1000
1200
1400
1600
1800
----
|
Room
100
200
300
400
500
600
700
800
900
1000
|
32.1
31.7
30.7
29.6
28.5
27.5
26.2
24.8
22.9
21.1
----
|
221
219
212
205
198
192
185
176
166
154
143
|
Electrical Resistivity
|
Temperature,°F
|
micro ohm-in
|
|
Room
200
400
600
800
1000
1200
1400
1600
1800
|
45.3
45.8
46.5
47.5
48.2
49.1
49.6
49.4
48.9
48.9
|
|
Temperature,°C
|
micro ohm-cm
|
|
Room
100
200
300
400
500
600
700
800
900
1000
|
115
116
118
120
122
124
126
126
125
124
124
|
Mean Coefficient of Thermal Expansion
|
Temperature
|
Coefficient
|
|
°F
|
°C
|
micro in/in-°F
|
micro m/m-°C
|
|
200
400
600
800
1000
1200
1400
1600
1800
----
|
100
200
300
400
500
600
700
800
900
1000
|
6.2
6.7
7.1
7.2
7.6
7.9
8.3
9.0
9.9
----
|
11.1
12.1
12.7
12.8
13.6
13.9
14.7
15.4
17.0
18.1
|
Thermal Conductivity
|
Temperature
|
Btu-in/ft²-hr-°F
|
W/m-K
|
|
°F
|
°C
|
|
Room
200
400
600
800
1000
1200
1400
1600
1800
----
|
Room
100
200
300
400
500
600
700
800
900
1000
|
81
89
103
115
128
141
154
167
182
195
----
|
11.7
13.0
14.7
16.3
18.0
19.7
21.4
23.0
24.7
26.8
28.5
|
Heat
Treatment
Alloy 263 is typically heat treated in two stages--solution treatment followed
by an age hardening prior to service/fabrication.
Hot-Rolled sheet is normally given a solution treatment of 2100°F(1150°C), ½hr, water quenched or air cooled,
followed by an aging of 1470°F(800°C), 8hrs, air cooled.
Cold-Rolled sheet and cold-drawn section(including tube) are given a solution treatment of 2100°F(1150°C), 3-10 minutes, FBQ or
WQ, and then aged at 1470°F(800°C), 8hrs, AC.
Extruded/forged bars and section for forging or machining are usually solution treated at 2100°F(1150°C),1½-2½hrs,
WQ, followed by an aging treatment of 1470°F(800°C), 8hrs, AC.
|
