P355M thiab P420M yog qhov zoo-cov qib steel qauv rau cov hlab ntsha siab (EN 10028-5), qhov sib txawv ntawm lub zog: P355M muaj qhov tsawg kawg nkaus lub zog ntawm 355 MPa (los yog 345 MPa rau cov phaj tuab), thaum P420M muab lub zog siab dua nrog M20 yield tsawg dua kev siv siab / kev ntxhov siab zoo li cov kav dej, txawm li cas los xij P355M yog qhov zoo rau lub tank cia thiab siv dav dav.
Kev Siv Tshuab Ntxiv: HIC Test|NACE MR0175|Z15|Z25|Z35
Thickness: 6mm-300mm,
Dav: 1500mm txog 4050mm,
Ntev: 3000mm txog 15000mm
Tshuaj muaj pes tsawg leeg
|
TS EN 10028-5 P355MTshuaj muaj pes tsawg leeg |
|||||||
|
Qib |
Cov ntsiab lus Max (%) |
||||||
|
C |
Si |
Mn |
P |
S |
Al |
N |
|
|
P355M |
0,14 |
0,50 |
1,60 |
0,025 |
0,020 |
0,020 |
0,015 |
|
Nb |
V |
Ti |
Ni |
Mo |
|
|
|
|
0,05 |
0,10 |
0,05 |
0,50 |
0,20 |
|
|
|
|
TS EN 10028-5 P420MTshuaj muaj pes tsawg leeg |
|||||||
|
Qib |
Cov ntsiab lus Max (%) |
||||||
|
C |
Si |
Mn |
P |
S |
Al |
N |
|
|
P420M |
0,16 |
0,50 |
1,70 |
0,025 |
0,020 |
0,020 |
0,020 |
|
Nb |
V |
Ti |
Ni |
Mo |
|
|
|
|
0,05 |
0,10 |
0,05 |
0,50 |
0,20 |
|
|
|
Mechanical Property
|
Qib |
P355M Mechanical Property |
|||
|
Thickness |
Yield |
Tensile |
Elongation |
|
|
P355M |
mm |
Min Mpa |
Mpa |
Tsawg% |
|
6-16 |
355 |
450-610 |
22% |
|
|
16-40 |
355 |
450-610 |
22% |
|
|
40-63 |
345 |
450-610 |
22% |
|
|
Qib |
P420M Mechanical Property |
|||
|
Thickness |
Yield |
Tensile |
Elongation |
|
|
P420M |
mm |
Min Mpa |
Mpa |
Tsawg% |
|
6-16 |
420 |
500-660 |
19% |
|
|
16-40 |
400 |
500-660 |
19% |
|
|
40-63 |
390 |
500-660 |
19% |
|
Qhov tseem ceeb sib txawv & Zoo sib xws
Lub zog: P420M muaj qhov siab tshaj qhov siab tshaj tawm lub zog (nyob ib ncig ntawm 420 MPa) dua li P355M (ib puag ncig 355 MPa), ua rau P420M muaj zog dua.
Txuj: Ob leeg poob rau hauv EN 10028-5, tus qauv rau cov khoom tiaj tus rau lub hom phiaj siab, tshwj xeeb TMCP steels.
Kev tsim khoom: Ob leeg siv cov txheej txheem Thermomechanical Control (TMCP), muab lawv zoo heev weldability thiab toughness, tso cai rau omission ntawm post-weld heat treatment (PWHT).
Muaj pes tsawg leeg: P420M muaj cov ntsiab lus zoo li manganese (ib puag ncig 1.7%) rau lub zog, tab sis ob qho tib si tswj tau qis - carbon steels.
Daim ntaub ntawv: P355M yog siv nyob rau hauv dav dav cov hlab ntsha thiab tso tsheb hlau luam, thaum P420M yog haum rau siab dua - siab los yog tej kev siv xws li hydrogen / CO2 pipelines.
Hauv cov ntsiab lus: Xaiv P355M rau cov qauv kev ua haujlwm siab xav tau zoo weldability; xaiv P420M thaum xav tau lub zog ntau dua rau tib daim ntawv thov profile, yam tsis muaj kev pab cuam TMCP.
