S355K2W steel phaj yog ib hom kev txhim kho atmospheric corrosion kuj steel.S355K2W cov ntaub ntawv tus lej yog 1.8967.S355K2W steel V zoo li qhov cuam tshuam qhov ntsuas kub ntawm -20℃thiab min zog yog 27J.Txhim kho atmospheric corrosion kuj steel txhais tau tias weathering steel lossis cua corrosion kuj steel.
S355K2W steel phaj "S" txhais tau tias S355K2W qib yuav siv tau rau hauv cov qauv steel, 355 yog lub zog minyield. J0, J2 thiab K2 tus qauv rau qhov cuam tshuam℃thiab lub zog hauv -20 temperature.W" txhais tau hais tias qhov sib txawv ntawm lawv cov ntsiab lus carbon thiab phosphorus thiab muaj.
Tshuaj muaj pes tsawg leeg % ntawm cov khoom tsom xam ntawm qib S355K2W
|
C |
Si |
Mn |
Cu |
P |
S |
Cr |
N |
|
0.19 |
0.55 |
0.45-1.60 |
0.20-0.60 |
0.035 |
0.035 |
0.35-0.85 |
0.010 |
Mechanical zog ntawm qib S355K2W
|
Kub |
-20 |
-10 |
0 |
20 |
|
Notch Impact Test. Min. absorbed zog J |
40 |
|
|
|
|
Nominal thickness (hli) |
rau 16 |
16 - 40 |
40 - 63 |
63 - 80 |
80 - 100 |
100 - 150 |
|
ReH - Yam tsawg kawg nkaus tawm lub zog (MPa) |
355 |
345 |
335 |
325 |
315 |
295 |
|
Nominal thickness (hli) |
rau 3 |
3 - 100 |
100-150 |
|
Rm -Tensile zog (MPa) |
510-680 |
470-630 |
450-600 |
|
Nominal thickness (hli) |
Ntau dua lossis sib npaug li 1.5＜2 |
Ntau dua lossis sib npaug rau 2﹤2.5 |
Ntau dua lossis sib npaug li 2.5＜3 |
Ntau dua lossis sib npaug rau 3 ~ 40 |
Ntau dua lossis sib npaug rau 40﹤63 |
Ntau dua lossis sib npaug rau 6﹤100 |
Ntau tshaj los yog sib npaug rau 100﹤150 |
|
A - Yam tsawg kawg elongation Lo=5,65 √ Li ntawd (%) Longitudinal |
16 |
17 |
18 |
22 |
21 |
20 |
18 |
