ABS FQ47 yog ib qho ntxiv -siab- lub zog marine steel phaj ntawv pov thawj los ntawm American Bureau of Shipping (ABS). Lub npe "FQ" txhais tau hais tias nws yog quenched thiab tempered steel nrog kev cuam tshuam toughness kuaj ntawm -60 degree, kom ntseeg tau qhov kev ua tau zoo tshwj xeeb hauv polar thiab Arctic ib puag ncig. Nws muaj qhov tsawg kawg nkaus lub zog ntawm 460 MPa thiab lub zog tensile xws li 570 txog 720 MPa, nrog qhov tsawg kawg nkaus elongation ntawm 17%. Kev cuam tshuam lub zog xav tau yog 31J (transverse) thiab 46J (ntev) ntawm -60 degree. Qib no yog dav siv rau offshore drilling platforms, hull lug, thiab tseem ceeb marine Cheebtsam uas yuav tsum tau zoo heev low-temperature toughness thiab weldability.
ABS FQ63 yog ib qho ultra- siab- lub zog marine steel phaj kuj tau lees paub los ntawm ABS, tsim los ntawm cov txheej txheem quenching thiab tempering . Zoo li FQ47, nws raug kuaj xyuas ntawm -60 degree, nrog rau kev cuam tshuam lub zog ntawm 41J (transverse) thiab 62J (ntev) ntawm qhov kub thiab txias. Lub "63" qhia txog qhov tsawg kawg nkaus lub zog ntawm 620 MPa thiab lub zog tensile xws li 720 txog 890 MPa, nrog qhov tsawg kawg nkaus elongation ntawm 15%. Nws cov tshuaj muaj pes tsawg leeg yog tswj hwm nruj nrog cov pa roj carbon tsawg dua lossis sib npaug li 0.18% thiab manganese Tsawg dua lossis sib npaug li 1.60%. Qib no yog tsim los rau cov ntawv thov uas xav tau tshaj plaws, suav nrog jack-nce rig ob txhais ceg, ultra- cov nkoj loj, thiab cov qauv tseem ceeb hauv ntug dej hiav txwv uas xav tau lub zog siab tshaj plaws - rau qhov hnyav piv.
Ob leeg ABS FQ47 thiab ABS FQ63 yog ABS- ntawv pov thawj quenched thiab tempered marine steels nrog tshwj xeeb qis- qhov kub thiab txias tau sim ntawm -60 degree, kom ntseeg tau tias kev ua tau zoo nyob rau hauv qhov hnyav tshaj plaws Arctic thiab hnyav marine ib puag ncig. Lawv qhov sib txawv tseem ceeb nyob hauv qib siab: FQ47 muaj qhov tsawg kawg nkaus tawm lub zog ntawm 460 MPa nrog lub zog tensile ntawm 570-720 MPa, haum rau siab - lub zog ntawm ntug dej hiav txwv platforms thiab nkoj hulls, thaum FQ63 muab qhov muaj zog ntau dua qhov muaj zog ntawm tensile zog nrog tensile zog ntawm 620 MPa. 720-890 MPa, tsim los rau cov kev xav tau tshaj plaws load-bearing daim ntaub ntawv uas yuav tsum tau superior zog-rau-hnyav piv. Ob qib tshwj xeeb tswj cov tshuaj muaj pes tsawg leeg (cov pa roj carbon tsawg dua lossis sib npaug li 0.18%, manganese Tsawg dua lossis sib npaug li 1.60%) thiab tswj cov weldability zoo rau kev pabcuam marine tseem ceeb.
Tshuaj muaj pes tsawg leeg
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ABS FQ47 Ntxiv muaj zog muaj zog tshuaj muaj nyob rau hauv Tempering thiab quenching |
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Qib |
Cov ntsiab lus Max (%) |
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|
C |
Si |
Mn |
P |
S |
N |
|
|
ABS FQ47 |
0.18 |
0.55 |
1.60 |
0.025 |
0.025 |
0.02 |
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ABS FQ63 Ntxiv muaj zog muaj zog tshuaj muaj nyob rau hauv Tempering thiab quenching |
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|
Qib |
Cov ntsiab lus Max (%) |
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|
C |
Si |
Mn |
P |
S |
N |
|
|
ABS FQ63 |
0.18 |
0.55 |
1.60 |
0.025 |
0.025 |
0.02 |
Mechanical Property
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ABS FQ47 Ntxiv cov khoom muaj zog ntxiv hauv tempering thiab quenching |
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|
Qib |
Mechanical Property |
Charpy V Impact Test |
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|
Yield |
Tensile |
Elongation |
Qib |
Zog 1 |
Zog 2 |
|
|
Min Mpa |
Mpa |
Tsawg% |
-40 |
J |
J |
|
|
ABS FQ47 |
460 |
570-720 |
17 |
31 |
46 |
|
|
Lus Cim: Lub Zog 1 yog qhov kev ntsuas cuam tshuam, Lub Zog 2 yog qhov ntev |
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|
ABS FQ63 Ntxiv cov khoom muaj zog ntxiv hauv tempering thiab quenching |
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|
Qib |
Mechanical Property |
Charpy V Impact Test |
||||
|
Yield |
Tensile |
Elongation |
Qib |
Zog 1 |
Zog 2 |
|
|
Min Mpa |
Mpa |
Tsawg% |
-60 |
J |
J |
|
|
ABS FQ63 |
620 |
720-890 |
15 |
41 |
62 |
|
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Lus Cim: Lub Zog 1 yog qhov kev ntsuas cuam tshuam, Lub Zog 2 yog qhov ntev |
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