445NF
445NF --304?? ????, ? ??? ?????? ??????, ???? ??, ????? ??.
C? N?
??, Ti? Nb? ??? ???? ????? ?????? ?????.
?????:
| ?? | 445NF |
|
?? |
--??(深衝)??, ?????? ????, ????? ??, ??? ?? ? ???, ??? ???? ??? ??(滋性)? ??? ? ??.. |
|
?? |
--????, ????, ????, ???, ??, ?????, ??????, ???. |
???? :(??:wt%)
| ?? | C | Si | Mn | P | S | Cr |
| ?? 445NF |
≤0.015 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 20.0～23.0 |
????:
| ?? | YS（Mpa） | TS（Mpa） | EI（%） | Hv |
| ?? 445NF |
≥245 | ≥410 | ≥22 | ≤200 |