Q620D High Strength Low Alloy HSLA Steel
Q620D alloy steel phaj yog qis-alloy high-strength steel phaj nrog cov yam ntxwv ua tau zoo thiab siv dav hauv ntau qhov chaw.
Thaum muaj kev cuam tshuam lossis khoov, Q620D cov hlau muaj zog tuaj yeem tswj tau zoo toughness, tsis yooj yim rau tawg, thiab tuaj yeem tswj tau qhov zoo ntawm qhov hnyav ntawm qhov kub ntawm -20 degree . Thaum Q620D high-strength low-alloy phaj yog raug rau alternating loads rau lub sij hawm ntev, cov hlau phaj tseem tuaj yeem tswj kev ua haujlwm zoo.
► Cov cuab yeej cuab tam rau GB / T 16270 Q620D siab tensile steel phaj
|
Thickness (hli) |
Yield zog (Ntau dua lossis sib npaug rau Mpa) |
Tensile zog (Mpa) |
Elongation nyob rau hauv ntau dua los yog sib npaug rau , A% |
|
T Tsawg dua lossis sib npaug li 50 |
620 |
700-890 |
15 |
|
50<> |
580 |
700-890 |
|
|
100<> |
560 |
650-830 |
► Tshuaj muaj pes tsawg leeg rau GB / T 16270 Q620D siab tensile phaj
|
C |
Si |
Mn |
P |
S |
Cu |
Cr |
|
0.20 |
0.80 |
1.70 |
0.025 |
0.015 |
0.50 |
1.50 |
|
Ni |
Mo |
B |
V |
Nb |
Ti |
- |
|
2.00 |
0.70 |
0.005 |
0.12 |
0.06 |
0.05 |
- |
