Cov khoom lag luam
Tsawg cov ntaub ntawv kub steel q460D phaj, Q460D Steel phaj yog sib npaug ntawm cov phaj luv thiab s460Q steel phaj ob qho tib si tsawg kawg 20 Deg.Ccenigrade thaum muab.
Cov cuab yeej siv mennical rau GB / T 16270 Q460D Steel Phaj
|
Tuab (mm) |
Yield zog (loj dua los yog sib npaug rau MPa) |
Tensile lub zog (mpa) |
Elongation ntau dua los yog sib npaug,% |
|
T tsawg dua li lossis sib npaug nrog 50 |
460 |
550-720 |
17 |
|
50<> |
440 |
550-720 |
|
|
100<> |
400 |
500-670 |
Tshuaj lom neeg tshuaj lom neeg rau GB / T 16270 Q460D Steel Phaj (Kev Ntsuam Xyuas Kub Ntsuas Max%)
|
Lub ntsiab siv tshuaj tseem ceeb ntawm GB / T 16270 Q460D Hlau 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 |
- |
Khoom nta
Siab zog - rau - qhov hnyav. Piv:
Enables cov txheej txheem sib dua tsis muaj kev nyab xeeb kom muaj kev nyab xeeb, txo cov khoom noj thiab tag nrho tus nqi.
Zoo heev Weldability:
Cov pa roj carbon tsawg tsawg (Ce tsawg dua lossis sib npaug nrog 0.47%) Tso cai rau cov kev tsim vuam zoo xws li SMAW, thiab GMaw.
Superi Kev cuam tshuam Kuj:
Lub taub cev kub martensitic microstructure muab cov muaj zog tsis kam rau brittle backstrecture, txawm tias kev poob siab lossis ua rau muaj kev poob siab.
Zoo machinability thiab formability:
Haum rau kev txiav, khoov, thiab kev sib sau, ua kom muaj txiaj ntsig hauv kev fabrication.
Cov ntawv thov ntawm GB / T 16270 Q460D quenched thiab tempered steel phaj
1. Choj tsim kho
Q460D steel tau siv nyob rau hauv cov ntaub pua chaw ntawm Choj Girders, lub thawv teeb, thiab trusses uas xav tau kev coj zoo thiab muaj peev xwm.
Cov paib muaj zog: ntau dua los yog sib npaug rau 460 MPa
Lub zog tensile: 550-720 mpa
Charpy V -} notch cuam tshuam lub zog: ntau dua lossis sib npaug nrog 47 j ntawm -20 degree
Cov khoom no ua kom muaj kev nyab xeeb thiab kav loj nyob rau hauv loj - span cov qauv siv, kev co, thiab qis- tej kev mob kub.
2. Ntughore thiab Marine Engineering
Nyob rau hauv lub pob zeb ntug dej thiab cov tub rog ua yeeb yaj kiab, Q460D pom tau zoo dua rau kev cuam tshuam, nkees, thiab qab ntsev corrosion.
Kev tuav kom muaj zog: tswj hwm ntau dua lossis sib npaug rau 70% lub zog ntawm subzero kub (-40 degree).
Corrosion Kuj: txhim kho los ntawm Microalloying ntsiab xws li Ni, CR, thiab CU.
Nws yog qhov zoo tagnrho rau risers, lawj, thiab cov txheej txheem kev ua haujlwm hauv cov av ua haujlwm hnyav.
3. Cranes Thiab Cov Machinery Ntau Lawm
Q460D phaj yog siv rau kev tsim cov crane booms, nqa caj npab, thiab kev nqa cov khoom muaj zog {{1} Qhov hnyav} qhov hnyav.
Txo qhov hnyav: Txog li 15-25% piv nrog Q345 hlau.
Qaug zog tsis kam: txhim kho los ntawm cov sulfur thiab phosphorus cov ntsiab lus (<0.015%).
Qhov no pub rau lub neej ntev ntev thiab kev ua haujlwm ntau dua nyob rau hauv cyclic thauj khoom.
4. Siab {{{}}} Rose vaj tse
Hauv cov skyscripers niaj hnub thiab cov tuam tsev muaj kev lag luam, Q460D hlau tau thov cov kab teeb, thiab txhawb thav ntawv.
Tsim Nyias: 1.3-1.5 npaug siab dua cov qauv sib xyaw hlau.
Zoo Weldability: Carbon sib npaug (CE) tsawg dua lossis sib npaug ntawm 0.47 kom tau txais kev siv tshuab nyob ruaj khov.
Nws muaj kev sib xyaw ua ke ntawm lub zog thiab ductility muab ob qho qauv kev ua tau zoo thiab seismic tiv taus.
5. Cov hlab ntsha siab thiab tso tsheb hlau luam
Q460D tseem siv tau rau hauv kev tso tawm - pa taws ib puag ncig xws li ob qho siab loj thiab tej yam nyuaj thiab kev cuam tshuam tawv yog qhov tseem ceeb.
Ua haujlwm siab: tsim nyog txog 4-6 MPA nyob ntawm cov tuab.
Thickness ntau: feem ntau 8-100 hli.
Qhov quenched thiab tempered kev kho mob tuaj yeem lees paub cov kev sib txuas microstrormity thiab ntev - sij hawm kev ntseeg tau.
