15NiCuMoNb5-6-4 yog dab tsi?
15NiCuMoNb5-6-4 (DIWA 373, 15NiCuMoNb5, los yog WB36) yog cov hlau uas muaj zog tsawg. Nws yog cov nplua-grained, high-strength, weldable, high-temperature thiab high-pressure steel qauv tsim nyob rau hauv lub teb chaws Yelemees xyoo 1930s. Cov hlau yog alloyed los ntawm kev ntxiv ntau lub ntsiab lus alloy xws li Ni-Cu-Mo-Nb, uas tsis tsuas yog txhim kho lub zog kub thiab siv kub ntawm cov hlau, tab sis kuj muaj cov khoom siv zoo, kev ua haujlwm kub thiab kev sib txuas. Tam sim no VALLOUREC & MANNESMANN hauv Tebchaws Europe thiab Sumitomo Hlau hauv Nyij Pooj tsim cov yeeb nkab uas tsis tshua muaj hlau. Tsis tas li ntawd, Thyssen nyob rau hauv lub teb chaws Yelemees kuj tsim steel daim hlau ntawm no steel qib. Cov hlau no hu ua WB36 lossis DIWA 373 nyob rau hauv cov hlau mills. Nws tau suav nrog European VdTUV 377/2 cov cai thiab EN 10216-2 cov qauv, nrog rau qib 15NiCuMoNb5 thiab 15NiCuMoNb5-6-4 raws. Cov hlau no tuaj yeem siv tsis tau tsuas yog rau cov hlau phaj thiab cov kav hlau, tab sis kuj rau forgings, tshwj xeeb tshaj yog cov kav dej loj loj seamless, uas yog siv ntau dua.
Kwv yees cov lus sib piv
|
ISO |
DIN |
GB |
ISC |
ASTM / AISI |
EN |
|
|
15NiCuMoNb5-6-4 |
TIAB SA 373 |
1.6368 |
15Ni1MNMONbCu |
A61158 |
SA-213 t36 |
15NiCuMoNb5-6-4 |
|
SA-335 P36 |
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Tshuaj muaj pes tsawg leeg
15NiCuMoNb5-6-4 yog cov hlau tsis tshua muaj siab zog steel uas ua raws li tus qauv EN 10216-2-2013 thiab muaj ntau yam alloying xws li chromium, npib tsib xee, tooj liab, molybdenum, niobium, thiab lwm yam. thiab kev ua tau zoo ntawm cov khoom ntawm qhov kub thiab txias.
| Lub ntsiab |
EN 10216-2 |
| C |
Tsawg dua los yog sib npaug rau 0.17% |
| Si |
0.25-0.50% |
| Mn |
0.80-1.20% |
| P |
Tsawg dua lossis sib npaug rau 0.025 |
| S |
Tsawg dua lossis sib npaug rau 0.020 |
| Cr |
Tsawg dua lossis sib npaug rau 0.30 |
| Ni |
1.00-1.30% |
| Cu |
0.50-0.80% |
| Mo |
0.25-0.50% |
| Nb |
0.015-0.045% |
| N |
Tsawg dua lossis sib npaug rau 0.020 |
| Al |
Tsawg dua lossis sib npaug rau 0.05 |
Mechanical zog
|
Tensile zog Rm,N / mm² |
Yield zog Rel, N / mm² |
|
| Txheem tus nqi |
580-740 |
Ntau dua lossis sib npaug li 430 |
| Rov ntsuam xyuas tus nqi |
669 |
590 |
Lub cev muaj zog
| ceev |
7.85 g / cm³ |
| Melting point |
1425-1460 degree |
| Thermal conductivity |
36 W/(m·K) (<20℃) |
| Tshwj xeeb kub |
460 J/(kg·K)(<20℃) |
| Coefficient ntawm thermal expansion |
11.5 x 10⁻⁶ / K (20 degree -100 degree) |
Metallographic qauv
Lub deliheev lub xeev ntawm 15NiCuMoNb5-6-4 (DIWA 373, WB36) steel yog normalized (quenched) + tempered. Tom qab qhov kawg kev kho cua sov ntawm normalizing + tempering, cov qauv metallographic yog bainite + ferrite + troostite lossis bainite + ib qho me me ntawm ferrite.
Steel Plant Production Process
Lub hauv paus refining → LF refining → VD kho → nruam casting (pwm casting) → tu, cua sov → dov → (stacking) → nto tshuaj xyuas → batching → flaw detection → tshav kub kho → txiav thiab sampling → kev soj ntsuam → cia
Cov cheeb tsam thov
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Nuclear fais fab nroj tsuag: Siv dav hauv cov khoom siv ntawm cov chaw tsim hluav taws xob nuclear los tsim cov khoom tseem ceeb uas tiv taus kub, siab kub thiab hluav taws xob.
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Kev lag luam hluav taws xob: siv los tsim hluav taws xob nuclear reactor siab hlab ntsha, boiler nruas, high-pressure thiab high-temperature cov cuab yeej los tsim cov nkev thiab roj, thiab lwm yam tseem ceeb Cheebtsam uas tiv taus kub, siab kub thiab corrosive xov xwm yaig.
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Petrochemical kev lag luam: siv los ua reactors, kub exchangers, separators, spherical tanks, roj thiab roj tso tsheb hlau luam, liquefied roj tso tsheb hlau luam thiab lwm yam khoom siv los xyuas kom meej stability thiab kev ruaj ntseg ntawm cov txheej txheem ntau lawm.
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Boilers thiab cov hlab ntsha siab: Lub zog siab thiab kev nkag siab zoo ua rau nws tsim nyog rau kev tsim cov boilers, cov hlab ntsha siab, cov kav dej thiab cov khoom siv.
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Gas turbine: siv rau combustion chambers, blades thiab kub gas turbines.
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Shipbuilding kev lag luam: 15NiCuMoNb5-6-4 kuj yog siv dav hauv kev lag luam shipbuilding, tshwj xeeb tshaj yog cov khoom siv nrog cov kev xav tau siab rau corrosion thiab lub zog nyob rau hauv marine ib puag ncig.
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Kev lag luam kev tsheb ciav hlau: Cov khoom siv hauv kev tsheb ciav hlau, tshwj xeeb tshaj yog cov tsheb ciav hlau loj, cov tsheb thauj khoom thiab cov tsheb thauj khoom hnyav, feem ntau siv 15NiCuMoNb5-6-4, lub zog siab thiab ruaj khov.
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Automotive kev lag luam: siv rau cav, chassis thiab tso tshuab, thiab lwm yam.
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Lub tsev thiab choj cov qauv: Vim nws lub zog siab thiab huab cua tsis kam, 15NiCuMoNb5-6-4 kuj tseem siv rau hauv cov qauv ntawm cov tsev thiab cov choj, tshwj xeeb tshaj yog nyob rau hauv high-load thiab high-stress vaj tse.
Kev loj hlob zeem muag
Hauv cov ntsiab lus, nrog kev nce qib ntawm kev siv thev naus laus zis thiab kev nthuav dav ntxiv ntawm daim ntawv thov, 15NiCuMoNb5-6-4 yog ib qho tseem ceeb ntawm cov khoom siv engineering nrog kev ua haujlwm zoo heev. Nws yuav qhia nws tus nqi tshwj xeeb thiab ntxim nyiam hauv ntau qhov chaw. Nws cov kev ua tau zoo heev thiab kev siv dav dav ua rau nws muaj kev sib tw hauv kev ua lag luam, thiab nws cov kev cia siab ntawm kev lag luam yuav dav dua.
