A class of metallic materials that can work for a long time under the action of high temperature above 600ºC.
B. Features:
| Element | C | Cr | Mo | Ta | Al | Ti | B | Zr |
|
Content
(wt.%) |
0.13 ~ 0.17 |
8.00
~
10.00 |
2.25 ~ 2.75 | 1.25 ~ 1.75 | 5.25 ~ 5.75 | 1.25 ~ 1.75 | 0.01 ~ 0.02 | 0.03 ~ 0.09 |
| Element | Fe | Si | Mn | Cu | Co | S | W | Ni |
|
Content
(wt.%) |
≤1.0 | ≤0.20 | ≤0.20 | ≤0.1 | 9.00 ~ 11.00 | ≤0.015 | 9.00 ~ 11.00 | Bal. |
| Condition | Tensile Property | Stress Rupure Property | ||||||
| Cast |
Temperature
ºC |
Rm
N/mm 2 |
Rp
0.2
N/mm 2 |
A
% |
Temperature
ºC |
Stress
N/mm 2 |
A
% |
Life
hr |
| 760 ±3 | > 860 | > 690 | > 4 | 871 ±2 | 414 | > 4 | > 24 | |
|
Room
Temperature |
> 780 | > 680 | > 2 | --- | ||||