Kev siv

Cov ntaub ntawv ntawm 4cr13 thiab 40CR13 thiab cov khoom lag luam dav dav hauv kev lag luam vim lawv lub hardness, hnav tsis kam, thiab corrosion resistance muaj zog. Cov hlau no feem ntau yog nquag ua rau cov txheej txheem kho cua sov, xws li quenching thiab tempering, uas txhim kho lawv cov khoom siv neeg. Cov kev ua tau zoo ntawm 4CR13 / 40CR13, nyob rau hauv cov nqe lus ntawm hardness thiab corrosion tsis kam, yog cov khoom siv nrog lwm tus xaiv tsis muaj ntau yam kev thov.

Ib daim ntawv thov standout yog nyob rau hauv kev lag luam automotive. Ntawm no, cov ntaub ntawv no yog cov cuab yeej siv hauv kev tsim cov khoom tseem ceeb xws li lub rooj zaum valve thiab nozzles. Lawv cov khoom hnav zoo tshaj plaws ua rau lub neej ntev dua, txo qhov zaus ntawm cov khoom no yuav tsum tau hloov.

Cov hlwv ntawm corrosion ntawm 4cr13 thiab 40CR13 tsis muaj qhov zoo ntxiv hauv cov ntawv thov hauv tsheb, qhov twg feem ntau muaj ntau yam ntawm kev xeb ib puag ncig. Thiaj li, kev siv cov hlau no ua rau muaj kev ncua tsheb ntev ntawm qhov chaw tsheb thiab txo cov nqi txij nkawm. Yog li ntawd, kev saws me nyuam ntawm 4CR13 thiab 40CR13 Cov ntaub ntawv muaj ntau yam cuam tshuam rau kev ua haujlwm tag nrho thiab lub neej kev cia siab ntawm cov cuab yeej kho thiab cov khoom siv.

Lub cev muaj zog

Lub zog ntawm lub cev ntawm 4cr13 thiab 40CR13, suav nrog lawv qhov ceev thiab tawv ncauj, ua lub luag haujlwm tseem ceeb hauv lawv txoj kev lag luam thoob plaws ntau yam kev lag luam thoob plaws ntau yam kev lag luam thoob plaws ntau yam lag luam thoob plaws ntau yam kev lag luam. Cov ntaub ntawv no muaj qhov ntom ntom ntawm 7.75 G / CM3, qhia tias tus qauv ruaj khov uas tiv thaiv sab nraud sab nraud. Ntxiv mus, lawv lub hardness, thaum quenched thiab tempered, tshaj 50 hrc, signaling zoo hnav coj tawm tsam.

Kev kho cua sov: Ob leeg 4Cr13 thiab 40Cr13 tau dhau los ua cov txheej txheem kho cua sov los txhim kho lawv cov tawv thiab lub zog. Nws suav nrog cua sov cov ntaub ntawv mus rau 1130-1150 degree, ua raws li lub caij txias.

Corrosion Resistance: Muaj li ntawm 13% chromium, cov ntaub ntawv no muaj kev tiv thaiv corrosion ntau heev. Cov cuab yeej no ua rau lawv zoo tagnrho rau siv nyob rau hauv ib puag ncig hnyav nrog cov ntsiab lus corrosive.

Machinability: Lub machinability ntawm cov ntaub ntawv no yog qhuas. Lawv tuaj yeem raug txiav, zoo li tus, thiab ua tiav raws li daim ntawv thov.

Weldability: Txawm tias lawv cov hardness siab, ob qho tib si 4Cr13 thiab 40Cr13 ua tau zoo heev weldability. Cov cwj pwm no tso cai rau lawv kom yooj yim koom nrog lwm cov khoom yam tsis muaj kev cuam tshuam lawv lub cev.

Qhov saum npoo tiav ntawm cov khoom siv zoo nkauj tshaj tawm thiab tiv thaiv kev xaiv sab nraud, suav nrog kev tsim khoom lag luam, nrog rau cov cuab yeej tsim khoom, thiab ntau dua.

Code hauv GB/T 20878

Unified numerical code

Qib tshiab

Qib qub

Ntom ntom / (G / cm3) 20 degree

Melting taw tes degree

Lub peev xwm tshwj xeeb kub (kJ / Kg · K)

Thermal conductivity (W / m · K)

Coefficients ntawm linear thermal thermal expansion ({0}} / k):

Hluav taws xob Resistivity
(· · Map2 / m) 20 degree

Longitudinal modulus ntawm elasticity (kn / mm2) 20 degree

100 degree

500 degree

0-100 degree

0 - 500 degree

104

S42040

40C3

4 cr13

7.75

0.46

28.1

28.90

10.50

12.00

0.590

215

Mechanical Properties

Cov cuab yeej cuab tam ntawm 4Cr13 thiab 40Cr13 suav nrog HRC hardness tshaj 50 thaum quenched thiab tempered, qhia txog qib siab ntawm resilience thiab durability. Qhov no yog ua tiav los ntawm cov txheej txheem kho cua sov, uas suav nrog cov cua sov ntawm cov hlau mus rau qhov kub thiab txias ua ntej nws txias sai. Cov txheej txheem no hloov cov microstructure ntawm cov hlau, txhim khu nws hardness thiab cuam tshuam tsis kam.

Kev soj ntsuam hardness qhia tias ob lub 4cr13 thiab 40CR13 cov txheej txheem steel muaj cov khoom siv hardness superior hardness, uas yog kev ntsuas ntawm cov khoom siv tiv thaiv kom tsis txaus siab. Cov xeeb ceem no ua rau cov khoom siv uas haum rau cov ntawv thov uas ruaj khov thiab hnav tsis kam yog qhov txiav, xws li cov khoom lag luam, thiab lub rooj zaum valve.

Tsis tas li ntawd, obsc13 thiab 40cr13 ua pov thawj zoo tshaj corrosion tsis kam. Lawv cov ntsiab lus chromium, uas yog kwv yees li 13%, tso cai rau kev tsim cov txheej txheej nyias, tiv thaiv oxide txheej rau saum npoo. Cov txheej txheej no cov hlau los ntawm ntau qhov chaw muaj kev nyab xeeb, ntev nws lub neej pabcuam.

Ntxiv mus, hnav tsis kam, lwm qhov chaw khaws khoom, yog pom tseeb nyob hauv cov qib steel. Qhov no tus cwj pwm, txuas rau lawv lub hardness thiab txhim kho los ntawm lawv txoj kev kho cua sov, muab lub peev xwm tiv thaiv kom tau txais kev zam rau kev ntxhov siab muaj kev ntxhov siab ntau.

Code hauv GB/T 20878	Unified numerical code	Qib Tshiab	Qib qub		Mechanical khoom ntawm cov khoom kuaj los ntawm quench tempering						Hardness ntawm annealed steel tuav
				Cov pov thawj muaj zog, tsis sib npaug txuas ntxiv Rp0.2/(N/mm2)	Lub zog tensile RM / (N / MM2)	Stretching tus nqi tom qab tawg A /%	Ntu Shrinkage Tus Nqi ZB /%	Impact absorbing zog Aku2d/J	HBW	Hrc	HBW
				Tsis pub tsawg tshaj li							Tsis muaj ntau tshaj
104	S42040	40C3	4 cr13	–	–	–	–	–		50	235

Tshuaj Muaj Tshuaj

Kev tshuaj xyuas cov tshuaj pleev ntawm 4CR13 thiab 40CR13 qhia txog cov carbon thiab chromium cuam tshuam, uas cuam tshuam ntau yam nyuaj thiab corrosion tsis kam. Cov ntsiab lus no, nrog rau silicon, manganese, thiab lwm tus, pab txhawb rau cov khoom tag nrho ntawm cov hlau no.

Tom qab kev kho cua sov, 4Cr13 thiab 40Cr13 pom muaj zog ntxiv thiab lub zog. Cov ntsiab lus siab chromium txhim kho lawv cov kev tiv thaiv corrosion, ua rau lawv zoo tagnrho rau kev siv hauv qhov chaw hnyav. Lawv cov machinability yog qhuas, tso cai rau kev ua haujlwm du thaum lub sijhawm tsim khoom. Txawm li cas los xij, cov ntsiab lus carbon thiab chromium siab tuaj yeem cuam tshuam rau kev sib txuas ntawm cov ntaub ntawv no, yuav tsum tau ceev faj kom tsim nyog thaum lub sij hawm vuam txheej txheem.

Rau kev sib piv, peb nthuav tawm ib lub rooj piav qhia txog qhov muaj pes tsawg leeg thiab cov khoom ntawm 4Cr13, 40Cr13, thiab lwm yam nrov stainless hlau hom:

Code hauv GB / T 20878

Unified numerical code

Qib tshiab

Qib qub

Tshuaj lom neeg cov tshuaj lom neeg (feem ntau feem)%