Tensile strength and temperature
Tensile strength and temperature
The mechanical properties of bolts are altered by rising temperatures.
The values specified in the table should only be viewed as a guide for the reduced lower proof stress ReL or the yield strength Rp0.2 caused by the increase in heat, and must not be used as requirements.
The mechanical properties of bolts, such as tensile strength, are altered with rising temperatures.The values and property classes specified in the table should only be viewed as a guide and not as requirements for the reduced lower proof stress ReL or yield strength RP0.2 caused by the increase in heat.
|
Property class |
Temperature °C |
||||
|
20 |
100 |
200 |
250 |
300 |
|
|
Lower proof stress ReL or yield strength RP0.2 N/mm² |
|||||
|
5.6 |
300 |
270 |
230 |
215 |
195 |
|
8.8 |
640 |
590 |
540 |
510 |
480 |
|
10.9 |
940 |
875 |
790 |
745 |
705 |
|
10.9 |
940 |
- |
- |
- |
- |
|
12.9 |
1100 |
1020 |
925 |
875 |
825 |