?????????GB/T8163-2008
?????????GB/T8163??2008 ?й???????
???????????????????????????
???????????????????
????10#??20#??Q345 ??
????
??繫??:
????
??????? |
????D?? |
?????S?? |
??ι? |
?????(mm) |
???????(mm) |
?????(mm) |
???????(mm) |
??30??50 |
??0.3 |
??30 |
??10?? |
??50??219 |
??0.8?? |
?????? |
??219 |
??1.0?? |
??20 |
??10?? |
????
????????
????
??? |
??? |
????????MPa?? |
????????MPa?? |
????????? |
GB/T8163 |
10 |
335??475 |
??205 |
??24 |
20 |
410??550 |
??245 |
??20 |
Q345 |
490??665 |
??325 |
??21 |
????
??????:
????
??? |
??? |
??????????? |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Cu |
GB/T8163 |
10 |
0.07??0.14 |
0.17??0.37 |
0.35??0.65 |
??0.035 |
??0.035 |
??0.15 |
??0.25 |
??0.25 |
20 |
0.17??0.24 |
0.17??0.37 |
0.35??0.65 |
??0.035 |
??0.035 |
??0.25 |
??0.25 |
??0.25 |
Q345 |
0.12??0.20 |
0.20??0.55 |
1.20??1.60 |
??0.045 |
??0.045 |
/ |
/ |