1.4122 cov khoom sib npaug

Dab tsi yog 1.4122 cov khoom siv?
1.4122 Stainless hlau yog lub Martesitic Steel qib, uas tuaj yeem yog qhov tawv nrog kev hem thawj. Cov qib kawm no yog sau raws li 1.4122 lossis x39crmo17-1 raws li en conc. 1.4122 cov khoom siv raws li QT750 tshav kub kev hem.

 

Cov khoom siv yog li cas 1.4122 sib npaug rau?

En 1.4122 Stainless hlau yog sib npaug rau x39crmo17-1 thiab tuaj yeem yog qhov haum rau Aisi 420 lossis 1.4034. Nws yog martensitic stainless hlau nrog lub hardness zoo thiab corrosion tsis kam, siv rau cov shafts, zog, thiab kev phais cov cuab yeej.

 

Ntawm no yog qee cov ntaub ntawv sib npaug thiab cov qib muaj feem cuam tshuam:

X39crmo17-1: Qhov no yog ncaj qha German / European cov khoom tsim qauv rau EN 1.4122, qhia nws cov tshuaj lom neeg muaj pes tsawg leeg ntawm 0.39% carbon, 17% chromium, thiab 1% molybdenum.

AISI 420: Thaum tsis yog ib qho tseeb phim, 1.4122 feem ntau piv rau qhov siab dua-}}}}}}}}}}}}}} Cov khoom lag luam thiab muaj peev xwm yuav tsum ua rau theem siab.

1.4034 (x46cr13): 1.4122 yog suav hais tias yog lwm txoj kev xaiv rau 1.4034 vim tias nws muaj cov khoom siv neeg ua kom zoo sib xws tab sis nrog corrosion.

 

Tshuaj lom neeg muaj tshuaj ntsuab% ntawm cov hlau x39cro17-1 (1.412): EN 10088-2-2005

Yuav pom zoo cov pa roj carbon monoxes yuav pom zoo rau lub sijhawm ntawm Enquery thiab kev txiav txim Tshwj xeeb ib txwm muaj ntawm cov lus faj sulfur tej zaum yuav muab cov khoom txhim kho ntawm cov khoom tshwj xeeb. Rau cov tshuab luam ntawv tau tswj cov lus faj sulfur ntawm 0.015% rau 0.030% yog pom zoo thiab tso cai. Rau weldability, ib qho kev tswj hwm cov lus faj sulfur ntawm 0.008% rau 0.030% yog pom zoo thiab tso cai. Kev ua polearability, ib qho kev tswj hwm cov lus faj sulfur ntawm 0.015% kev pom zoo. Cov ntsiab lus tsis tau teev nyob hauv cov lus no yuav tsum tsis txhob txhob txwm ua rau cov hlau tsis muaj kev pom zoo ntawm tus neeg yuav khoom tshwj tsis yog cov duab pov tseg.

C	Si	Mn	Ni	P	S	Cr	Mo
0.33 - 0.45	Max 1	Max 1.5	Max 1	Max 0.04	Max 0.015	15.5 - 17.5	0.8 - 1.3

 

Kev ua haujlwm ntawm nce qhov kub ntawm 1.4122, x39crmo17-1 hauv + qt750 mob:

Cov Khoom Siv		Kub
		100 degree	150 Qib	200 degree	250 Qib	300 Degree	350 degree	400 degree
Paib zog, rp0,2(MPA)		>540	>535	>530	>520	>510	>490	>470
Modulus ntawm elasticity, e (GPA)		212	-	205	-	200	-	190
Linear nthuav kev coefficient, (* 10-6 K-1)		10.4	-	10.8	-	11.2	-	11.6

 

Kev Kho Cua Sov:1.4122 yog martensitic stainless hlau, txhais tau nws cov khoom siv yog ua kom zoo dua los ntawm kev kho cua sov zoo li quenching thiab tempering.

Corrosion Kuj:Thaum nws muaj zoo corrosion tsis kam, 1.412 tsis zoo tagnrho rau cov ntawv thov dej hiav txwv tshwj tsis yog cov tshuaj tiv thaiv Cathodic yog qhov chaw.

Vuam:Cov yam ntxwv siab siab ntawm cov siab -} Cov hlau stainless hlau tuaj yeem ua rau lawv tsis yooj yim rau weld.

 

1.4122 vs 420

1.4122 (x39CRMO17-1) yog qib siab dua ntawm cov hlau stainless hlau nrog ib qho kev sib xyaw ntau dua. Qhov no alloying keeb, ua ke nrog ntxiv ntawm Molybdenum thiab ntau dua cov ntsiab lus chromium ntau dua, muab cov hlau siab tshaj lij piv rau cov qauv 420 stainless hlau (AISI 420).
Thaum ob qho tib si yog Martensitic, cua sov - Cov khoom siv tsis zoo, ua kom haum rau cov kev siv tshuab ntau dua hauv kev siv tshuab thiab cov khoom siv marine ua ke, xws li nqus thiab valve.