Txhua BV steels yog cov qauv carbon steels. Raws li nrog rau lwm qib ntawm cov hlau, lawv muaj ib tug tshwj xeeb lub ntiajteb txawj nqus ntawm 7.8.Higher -lub zog BV shipbuilding steel los nyob rau hauv rau qib ntawm ob lub zog, Lub BV DH 32 qib steel daim hlau muaj yield zog ntawm 45,500 psi (315 MPa), thiab qhov kawg tensile zog ntawm 10,000 psi, 4500 psi. (440-570 MPa).
BV DH32 Steel Qib Specification:
Thickness: 4mm-260mm,
Dav: 1200mm txog 4000mm
Ntev: 3000mm txog 18000mm.
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BV DH32 high Strength Chemical Composition nyob rau hauv Tempering thiab quenching |
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Qib |
Cov ntsiab lus Max (%) |
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C |
Si |
Mn |
P |
S |
Al |
N |
|
|
BV DH 32 |
0.18 |
0.1-0.50 |
0.90-1.6 |
0.035 |
0.035 |
0.015 |
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Nb |
V |
Ti |
Cu |
Cr |
Ni |
Mo |
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|
0.02-0.05 |
0.05-0.10 |
0.02 |
0.35 |
0.2 |
0.4 |
0.08 |
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Crack Sensitivity: Pcm=(C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+}Mo/15+V/10+5B)%
Carbon sib npaug: Ceq=【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
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BV DH32 siab zog khoom nyob rau hauv tempering thiab quenching |
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Qib |
|
Mechanical Property |
Charpy V Impact Test |
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Thickness |
Yield |
Tensile |
Elongation |
Qib |
Zog 1 |
Zog 2 |
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|
BV DH 32 |
mm |
Min Mpa |
Mpa |
Tsawg% |
-20 |
J |
J |
|
t Tsawg dua lossis sib npaug li 50 |
315 |
440-570 |
22% |
22 |
31 |
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50＜t Tsawg dua lossis sib npaug rau 70 |
315 |
440-570 |
22% |
26 |
48 |
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70＜t Tsawg dua lossis sib npaug rau 100 |
315 |
440-570 |
22% |
31 |
46 |
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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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Daim ntawv thov
BV Qib DH32 Shipbuilding steel phaj yog siv rau Shipbuilding Project thiab Ocean Offshore Structural Project.
Lwm Lub Npe
BV Qib DH32 Shipbuilding steel phaj|BV Qib DH32 Nkoj steel phaj| BV Qib DH32 Marine steel phaj|BV Qib DH32 steel phaj.
