ABS EQ63 thiab DQ63 yog ob qho tib si siab -lub zog, quenched thiab tempered steel daim hlau rau marine / offshore siv nrog 630 MPa yield zog, tab sis qhov sib txawv tseem ceeb yog lawv cov kev cuam tshuam toughness kub yuav tsum tau: 'Q' (DQ63) qhia qhov ntsuas kub qis (ntau dua toughness rau qhov txias ib puag ncig) dua li cov qauv (EQ 3') 'Q' feem ntau lub ntsiab lus tougher ntawm qis qis, ua rau EQ63 zoo rau cov ntug dej hiav txwv dav dav, thaum DQ63 zoo dua rau cov cua txias.
Tshuaj muaj pes tsawg leeg
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ABS EQ63 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 |
|
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ABS EQ63 |
0.20 |
0.55 |
1.7 |
0.030 |
0.030 |
0.02 |
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ABS DQ63 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 |
|
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AB/DQ 63 |
0.20 |
0.55 |
1.7 |
0.030 |
0.030 |
0.02 |
Mechanical Property
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ABS EQ63 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 |
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Min Mpa |
Mpa |
Tsawg% |
-40 |
J |
J |
|
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ABS EQ63 |
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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ABS DQ63Ntau lub zog 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 |
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|
Min Mpa |
Mpa |
Tsawg% |
-20 |
J |
J |
|
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AB/DQ 63 |
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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Qhov tseem ceeb sib xws:
Qib ABS: Ob leeg tau lees paub los ntawm American Bureau of Shipping (ABS) rau kev tsim cov nkoj thiab cov qauv sab nrauv.
Lub zog: Ob leeg muaj qhov tsawg kawg nkaus lub zog ntawm 630 MPa (90 ksi).
Kev Ua Haujlwm: Ob leeg yog quenched thiab tempered (Q&T) rau siab zog thiab toughness.
Qhov Tseem Ceeb Qhov txawv (Txoj Cai):
D (DQ63): Qhia txog qhov yuav tsum tau ua kom muaj zog, feem ntau cuam tshuam nrog kev siv dej txias dua qhov kev cuam tshuam ntawm qhov kub thiab txias yog qhov tseem ceeb.
E (EQ63): Qhia txog qhov yuav tsum tau ua kom muaj zog ntau dua (lossis qhov kev sim tshwj xeeb) dua li cov qib theem pib, tsim nyog rau kev siv sab nraud, tab sis 'D' feem ntau txhais tau tias zoo dua qis - kev ua haujlwm kub.
