LR DH46 yog hom siab - lub zog steel phaj tshwj xeeb tsim los rau kev siv dej hiav txwv. Qib ntawm cov hlau yog dav siv nyob rau hauv kev tsim kho ntawm ships thiab offshore lug vim lawv zoo heev mechanical zog thiab corrosion kuj.
LR DH46 ntxiv muaj zog Chemical Composition | |||||||
Qib | Cov ntsiab lus Max (%) | ||||||
C | Si | Mn | P | S | Al | N | |
LR DH46 | 0.20 | 0.55 | 1.70 | 0.030 | 0.030 | 0.015 | 0.020 |
Nb | V | Ti | Cu | Cr | Ni | Mo | |
0.02-0.05 | 0.03-0.10 | 0.02 |
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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】%
LR DH46 ntxiv cov khoom muaj zog | |||||||
Qib |
| Mechanical Property | Charpy V Impact Test | ||||
Thickness | Yield | Tensile | Elongation | Qib | Zog 1 | Zog 2 | |
LR DH46 | mm | Min Mpa | Mpa | Tsawg% | -20 | J | J |
t≤50 | 460 | 570-720 | 19% | 31 | 46 | ||
50 t 70 | 460 | 570-720 | 19% | 31 | 46 | ||
70＜t≤100 | 460 | 570-720 | 19% | 31 | 46 | ||
Lus Cim: Lub Zog 1 yog qhov kev ntsuas cuam tshuam, Lub Zog 2 yog qhov ntev | |||||||
Kev kho cua sov xwm txheej
LR DH46 steel phaj feem ntau yog muab nyob rau hauv ib qho normalized los yog tswj dov mob. Cov txheej txheem kev kho cua sov no tshem tawm cov kev ntxhov siab sab hauv, txhim kho cov khoom siv kho tshuab, thiab txhim kho cov weldability ntawm cov hlau.
Kev sim cuam tshuam
Txhawm rau ua kom muaj kev ncaj ncees ntawm cov nkoj thiab cov qauv hauv ntug dej hiav txwv hauv huab cua huab cua, qhov kev ntsuam xyuas cuam tshuam yog qhov tseem ceeb. LR DH46 steel daim hlau raug kuaj xyuas qhov ntsuas kub tshwj xeeb los ntsuas lawv lub peev xwm los tiv thaiv qhov cuam tshuam tsis zoo.
Thawj Daim Ntawv Thov Scenarios
LR DH46 steel daim hlau feem ntau yog siv rau hauv kev tsim cov nkoj, offshore platforms, thiab lwm yam marine qauv uas yuav tsum tau muaj zog thiab corrosion kuj. Cov hlau phaj no zoo- haum rau siv nyob rau hauv hnyav marine ib puag ncig, qhov chaw uas lawv muaj peev xwm tiv taus cov dej ntsev, yoj ua, thiab lwm yam ib puag ncig.
