Premium Tsawg-CarbonStainless Steel 310S

Stainless hlau 310S yog tus hwm qib qis-carbon austenitic qib nrog ultra- siab Cr (24–26%) thiab Ni (19–22%), ua rau 1150℃kev pabcuam. Qhov "S" (tsawg dua los yog sib npaug li 0.08% C) tiv thaiv kev cuam tshuam ntawm intergranular corrosion, ua rau nws indispensable rau huab cua sov industries xws li dav hlau engine manufacturing thiab petrochemical ua.

Tshuaj muaj pes tsawg leeg (Key, % ASTM A240): C Tsawg dua lossis sib npaug rau 0.08; Cr24.0–26.0; 19.0–22.0; Si Less tshaj los yog sib npaug rau 1.5; Mn Tsawg dua lossis sib npaug rau 2.0

Mechanical Properties (Annealed): Tensile Strength Ntau dua lossis sib npaug rau 515MPa; Yield zog ntau dua los yog sib npaug rau 205MPa; Elongation Ntau dua lossis sib npaug li 40%; Hardness Tsawg dua los yog sib npaug rau 217HB

Kev Ua Haujlwm Zoo1150℃oxidation tsis kam; zoo heev creep kuj; tsawg carbon tsis txhob cuam tshuam intergranular corrosion; ruaj khov hauv thermal cycling.

Daim ntawv thov: Lub dav hlau tso tawm, cov khoom siv hauv tsev, siab -kub reactors, incinerator qhov chaw.

Qib sib npaugTom ntej: EN1.4845, JIS SUS310S, DIN X2CrNi25-21

Sib piv nrog 309S310S sags 50% tsawg dua ntawm 1000 degree; 1150℃kev pabcuam (309S max 980 degree) tab sis tus nqi 20-30% ntau dua.

FAQs

Vim li cas 310S tuaj yeem tiv taus 1150 degree? Nws 24–26% Cr tsim ib ntom, nws tus kheej- kho Cr₂O₃ txheej uas thaiv oxidation- nyob ruaj khov dua li 304 txheej (tsis siab tshaj 650 degree). 19-22% Ni stabilizes lub austenitic qauv ntawm siab. Cov pa roj carbon tsawg (tsawg dua lossis sib npaug li 0.08%) zam qhov impurity -induced oxide txheej puas. Lub Cr/Ni kev sib koom ua ke ua kom cov txheej txheem tsis tu ncua thaum lub caij kub kub.

 

Dab tsi yog creep resistance, thiab yog vim li cas 310S superior? Creep yog qeeb deformation nyob rau hauv high heat / stress- tseem ceeb rau lub cub tawg siv / dav hlau qhov chaw. 310S siab Ni slows atomic zog; cov nplej zoo austenitic txo qis qhov ciam teb zawv zawg (ib qho tseem ceeb creep). Ntawm 1000 degree, 310S qhov cub siv hluav taws xob sags ib nrab ntau npaum li 309S nyob rau tib lub sijhawm, txo cov nqi hloov pauv thiab kev saib xyuas txawm tias tus nqi pib dua.

 

Puas yog 310S corrosion-tiv taus nyob rau hauv tsis yog- siab- cov xwm txheej kub? Nws tiv taus huab cua xeb, dilute nitric acid, thiab alkalis, haum tsis yog - cov tshuaj tua kab mob hnyav. Tab sis tsis muaj molybdenum ua rau nws tsis zoo hauv cov tshuaj chlorides- zam kev siv dej hiav txwv / dej ntsev (nruj rau pitting). Sulfur gases nyob rau hauv high temps ua brittle sulfides, txwv tsis pub siv nyob rau hauv sulfur- nplua nuj ib puag ncig. Nws tsuas ua tau zoo nyob rau hauv qis - chloride, ultra- siab - cua sov.

Yuav ua li cas vuam 310S ua tiav? Kub tawg yog ib qho kev pheej hmoo (nqaim solidification ntau). Siv qis-sulfur 310S muab tub lim; Cov tswv yim hluav taws xob qis txo qis HAZ qhov loj me thiab kev cais tawm impurity. Argon shielding tiv thaiv porosity. Cov ntu tuab xav tau 100-150℃preheat kom txo tau kev ntxhov siab. Post-weld, grind/pickle kom tshem tawm cov nplais oxide thiab rov ua kom corrosion; zam dhau electrode weaving.

 

Vim li cas 310S kim, thiab thaum twg nws tsim nyog? High Cr/Ni (19–22% Ni vs. 304's 8–10.5%) tsav cov nqi. Nws yog qhov tsim nyog rau ntau dua lossis sib npaug rau 1000℃kev pabcuam: dav hlau siv nws es tsis txhob kim superalloys; industrial kilns pom 2-3x lub neej ntev dua 309S. Cov qib pheej yig dua (309S) poob qis hauv ultra- kub kub, ua rau lub sijhawm poob qis-310S lub neej ntev offsets nws tus nqi.