Effects of Thermal Exposure on Tensile Properties of 0.5 in Diameter,
Cold-worked (43%) Bar
Initial Material
Condition
|
Thermal Exposure
|
Test Temperature
|
0.2% Offset Yield Strength
|
Ultimate Tensile Strength
|
Elongation
|
R.A.
|
|
°F
|
°C
|
ksi
|
MPa
|
ksi
|
MPa
|
%
|
%
|
|
43%
Cold-worked Bar
|
-
|
RT
|
RT
|
195.1
|
1345
|
200.4
|
1382
|
18.0
|
65.2
|
|
500
|
260
|
181.0
|
1248
|
181.1
|
1249
|
14.1
|
60.8
|
|
43%
Cold-worked Bar
|
500°F/4000h/AC
|
RT
|
RT
|
205.8
|
1419
|
212.6
|
1466
|
16.0
|
62.6
|
|
500
|
260
|
176.0
|
1214
|
178.5
|
1231
|
15.0
|
61.1
|
|
43%
Cold-worked Bar
|
500°F/8000h/AC
|
RT
|
RT
|
209.9
|
1447
|
209.9
|
1447
|
16.0
|
60.7
|
|
200
|
93
|
192.8
|
1329
|
192.8
|
1329
|
17.0
|
63.8
|
|
500
|
260
|
186.6
|
1287
|
186.6
|
1287
|
13.4
|
60.7
|
AC=Air Cool
RT= Room Temperature
R.A.= Reduction of Area
Effects of Thermal Exposure on Impact Strength of 1 in Diameter, Cold-worked (44%) Bar
|
Initial Material
Condition
|
Thermal Exposure
|
Charpy Impact Energy
|
|
ft.ibf
|
J
|
|
RT
|
-75°F (-59°C)
|
|
44% Cold-worked
|
-
|
146 (198)
|
153 (207)
|
|
44% Cold-worked
|
500°F/4000h/AC
|
136 (184)
|
135 (183)
|
AC= Air Cooled
RT= Room Temperature