P355QH thiab P460QH yog quenched thiab tempered weldable nplua -cov qauv hlau phaj tsim los rau European tus qauv EN 10028-6, tshwj xeeb tsim rau kev siv nkoj siab ntawm qhov kub siab. Tus "P" qhia txog lub hom phiaj siab, tus lej qhia qhov tsawg kawg nkaus ntawm lub zog hauv MPa, thiab "QH" qhia txog qhov kev xa khoom quenched thiab Tempered nrog cov khoom pov thawj ntawm qhov kub thiab txias. Cov qib no yog tsim los rau kev tsim cov khoom siv hluav taws xob xws li boilers, kub exchangers, ncu nruas, thiab tshuaj reactors ua hauj lwm nyob rau hauv siab qhov kev pab kub qhov twg creep kuj thiab lub sij hawm ntev kev ruaj ntseg yog ib qho tseem ceeb.
Qhov txawv tseem ceeb:
Thawj qhov txawv yog lawv lub zog. P355QH muaj qhov tsawg kawg nkaus yield zog ntawm 355 MPa (ntawm chav tsev kub), thaum P460QH muab lub zog ntau zog ntawm 460 MPa. Qhov kom zoo dua lub zog no ua rau P460QH tiv taus siab dua sab hauv lossis tso cai rau txo cov phab ntsa tuab hauv kev tsim cov hlab ntsha siab, muab qhov hnyav hnyav thiab cov nqi txuag hauv siab - kev siv siab.
Txhawm rau ua tiav lub zog zoo tshaj no thaum tswj hwm qhov xav tau nce siab -cov khoom kub thiab lub zog, P460QH xav tau kev tsim cov hlau zoo dua. Nws cov tshuaj muaj pes tsawg leeg suav nrog qib siab dua ntawm cov pa roj carbon, manganese, thiab micro-alloying ntsiab xws li chromium, molybdenum, thiab tejzaum nws yog npib tsib xee los yog vanadium, ua tiav raws li kev tswj xyuas kom meej quenching thiab tempering tsis. Yog li ntawd, P460QH muaj cov pa roj carbon ntau dua (Ceq) piv rau P355QH. Qhov no ua rau muaj kev xav tau ntau yam kev tsim khoom. Vuam P460QH yuav tsum tau tswj cov txheej txheem nruj dua: yuav tsum tau siv tshwj xeeb tsim nyog, qis- hydrogen, siab - lub zog siv tau, kev tswj xyuas meej ntawm qhov kub siab dua preheating, nruj txwv ntawm cov khoom siv hluav taws xob, thiab yuav luag txhua zaus yuav tsum tau tshaj tawm -weld T3} kev kho cua sov (PWigH 1. tawg thiab rov ua kom tawv nqaij hauv tshav kub- thaj tsam cuam tshuam.
Tshuaj muaj pes tsawg leeg
|
P355QH tshuaj muaj pes tsawg leeg |
|||||||
|
Qib |
Cov ntsiab lus Max (%) |
||||||
|
C |
Si |
Mn |
P |
S |
N |
B |
|
|
P355 QH |
0.16 |
0.4 |
1.5 |
0.025 |
0.015 |
0.015 |
0.005 |
|
Mo |
Cu |
Nb |
Ni |
Ti |
V |
Zr |
|
|
0.25 |
0.3 |
0.05 |
0.5 |
0.03 |
0.06 |
0.05 |
|
|
P460QH tshuaj muaj pes tsawg leeg |
|||||||
|
Qib |
Cov ntsiab lus Max (%) |
||||||
|
C |
Si |
Mn |
P |
S |
N |
B |
|
|
P460 QH |
0.18 |
0.50 |
1.70 |
0.025 |
0.015 |
0.015 |
0.005 |
|
Mo |
Cu |
Nb |
Ni |
Ti |
V |
Zr |
|
|
0.50 |
0.3 |
0.05 |
0.5 |
0.03 |
0.06 |
0.05 |
|
Mechanical Property
|
Qib |
P355QH Mechanical Property |
|||
|
Thickness |
Yield |
Tensile |
Elongation |
|
|
P355 QH |
mm |
Min Mpa |
Mpa |
Tsawg% |
|
6-50 |
355 |
490-630 |
22% |
|
|
50-100 |
335 |
490-630 |
22% |
|
|
100-150 |
315 |
450-590 |
22% |
|
|
Qib |
P460QH Mechanical Property |
|||
|
Thickness |
Yield |
Tensile |
Elongation |
|
|
P460 QH |
mm |
Min Mpa |
Mpa |
Tsawg% |
|
6-50 |
460 |
550-720 |
19% |
|
|
50-100 |
440 |
550-720 |
19% |
|
|
100-150 |
400 |
500-670 |
19% |
|
