S355J2W thiab S355K2W yog huab cua (W) cov qauv hlau nyob rau hauv EN 10025-5 tus qauv nrog qhov tsawg kawg nkaus tawm lub zog ntawm 355 MPa, sib txawv feem ntau hauv lawv qhov kev xav tau ntawm lub zog, nrog 'K2' qhia txog kev cuam tshuam ntau dua kev ntsuas lub zog (feem ntau 'Jus2') atmospheric corrosion kuj thiab tsis-kub daim ntaub ntawv, tsim ib tug tiv thaiv xeb txheej thaum lub sij hawm.
Tshuaj muaj pes tsawg leeg ntawm cov khoom tsom xam ntawm qib S355J2W
|
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 |
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 S355J2W
|
Kub |
-20 |
-10 |
0 |
20 |
|
Notch Impact Test. Min. absorbed zog J |
27 |
|
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 |
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 |
Qhov txawv tseem ceeb
W (Weathering): Ob qib muaj 'W' qhia txog kev txhim kho atmospheric corrosion kuj vim yog ntxiv alloying ntsiab (xws li Cu, Cr, Ni, Mo) uas tsim ib tug ruaj khov, tiv thaiv oxide txheej, tshem tawm qhov xav tau kev pleev xim rau ntau daim ntawv thov.
J2 vs. K2 (Ib puag ncig lub zog):
S355J2W: Yuav tsum muaj qhov cuam tshuam rau lub zog (piv txwv li, 27 Joules ntawm qhov kub thiab txias).
S355K2W: Yuav tsum muaj kev cuam tshuam lub zog ntau dua (piv txwv li, 40 Joules ntawm qhov kub thiab txias).
Txheem: Lawv poob rau hauv EN 10025-5: 2004, uas npog cov qauv kub dov steel nrog kev txhim kho atmospheric corrosion kuj.
