ASTM A517 Qib B thiab E yog ob qho tib si siab - lub zog, quenched thiab tempered alloy steel daim hlau rau cov hlab ntsha siab, tab sis lawv txawv ntawm lawv cov thickness siab tshaj plaws thiab qee cov cuab yeej cuab tam nuances, nrog Qib E feem ntau tso cai rau cov phaj tuab (txog 6 hauv.) dua qib B (txog 1.25 in.), thiab qib E nyob ntawm qhov tuab me ntsis. tuav 100 ksi yam tsawg kawg nkaus tawm lub zog thoob plaws nws qhov ntau. Ob leeg muab cov weldability zoo heev thiab toughness, tab sis kev xaiv qib tshwj xeeb nyob ntawm lub nkoj tsim lub siab, qhov kub thiab txias, thiab qhov xav tau tuab.
Tshuaj muaj pes tsawg leeg
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A517 qib BTshuaj muaj pes tsawg leeg |
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Qib |
Cov ntsiab lus Max (%) |
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|
C |
Si |
Mn |
P |
S |
|
|
A517 qib B |
0.13-0.23 |
0.13-0.37 |
0.64-1.10 |
0.035 |
0.035 |
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Cr |
Mo |
B |
Ti |
V |
|
|
0.36-0.69 |
0.12-0.28 |
0.0005-0.005 |
0.01-0.05 |
0.02-0.09 |
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A517 qib ETshuaj muaj pes tsawg leeg |
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Qib |
Cov ntsiab lus Max (%) |
||||
|
C |
Si |
Mn |
P |
S |
|
|
A517 qib E |
0.10-0.22 |
0.08-0.45 |
0.35-0.78 |
0.035 |
0.035 |
|
Cr |
Mo |
B |
Ti |
V |
|
|
1.34-2.06 |
0.36-0.64 |
0.001-0.005 |
0.005-0.11 |
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Mechanical Property
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Qib |
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A517 qib BMechanical Property |
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Thickness |
Yield |
Tensile |
Elongation |
|
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A517 qib B |
mm |
Min Mpa |
Mpa |
Tsawg% |
|
6-65 |
690 |
795-930 |
16% |
|
|
65-150 |
620 |
725-930 |
14% |
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Qib |
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A517 qib EMechanical Property |
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|
Thickness |
Yield |
Tensile |
Elongation |
|
|
A517 qib E |
mm |
Min Mpa |
Mpa |
Tsawg% |
|
6-65 |
690 |
795-930 |
16% |
|
|
65-150 |
620 |
725-930 |
14% |
|
Qhov siab tshaj plaws Thickness:
Qib B: Txwv rau 1.25 nti (32 hli).
Qib E: Muaj peev xwm muab tau rau hauv cov phaj tuab, txog li 6 ntiv tes (150 hli).
Yield zog:
Qib B: Yam tsawg kawg nkaus lub zog ntawm 100 ksi (690 MPa).
Qib E: Yam tsawg kawg nkaus yield zog ntawm 100 ksi (690 MPa) rau thicknesses mus txog 2.5 ntiv tes, tab sis poob mus rau 90 ksi (620 MPa) rau cov phaj tuab (tshaj 2.5 ntiv mus rau 6 ntiv tes).
Daim ntaub ntawv: Ob leeg yog rau fusion-welded siab hlab ntsha, tab sis Qib E lub peev xwm siab dua thickness haum rau thicker - cov hlab ntsha.
Toughness: Ob leeg muaj qhov zoo tshaj plaws Charpy V-Ntch cuam tshuam yuav tsum tau, tab sis Qib B tshwj xeeb yuav tsum muaj qhov tsawg kawg nkaus nthuav dav ntawm 0.015 ntiv tes.
