Dab tsi yog 1.4021 steel?
1.4021021 tus hlau, tseem hu ua x2013, AISI 420 lossis 420A, yog cov khoom siv hluav taws xob zoo nkauj nrog cov tshuaj tsw qab, xws li dej ntshiab, tsau tshuaj thiab cov organic acids. Nws tuaj yeem ua tiav rau ntau cov qauv khoom siv, suav nrog cov ntawv, xaim, bar thiab hlau.
Cov khoom siv twg yog 1.4021 sib npaug rau?
AISI 420 stainless hlau yog lub martensitic chromium steel uas tseem muaj nyob hauv cov kev tsim qauv 1.4021, BS 420S37 thiab X20C37 thiab X2013. Ua tsaug rau nws cov ntsiab lus chromium cov ntsiab lus, cov khoom siv zoo corrosion tsis kam (Pren tus nqi 12.0 - 14.0).
Thoob Ntiaj Teb Sib Xws Ntawm Cov Hlau Stainless 1.4021
| Thaj av / qauv | Kev tsim |
|---|---|
| EU / EN | X2015 |
| USA / AISI | 420 |
| Tsis yog | S42010 |
| Lub teb chaws Yelemees / Din, WNR | X2015 |
| Nyiv / Jis | Sus420J1 |
| Fabkis / AFNOR | Z20C13 |
| England / BS | 42030, 420s37 |
| Tuam Tshoj / GB | 23 |
| Swed / ss | 2303 |
| Tebchaws Poland / PN | 2H13 |
| Czechia / CSN | 17022 |
| Russia / Gost | 20KH13 |
Cov Khoom Siv thiab Tshuaj Muaj Zog Ntawm Aisi 420 / 1.4021 Stainless Hlau
Tshuaj lom neeg tshuaj (% los ntawm qhov hnyav):
C: 0.16 - 0.25
Yog: tsawg dua los yog sib npaug rau 1.00
Mn: tsawg dua los yog sib npaug rau 1.50
P: Tsawg dua lossis sib npaug rau 0.04
S: Tsawg dua lossis sib npaug rau 0.03
N: {-
Cr: 12.0 - 14.0
Cov Cuab Yeej Siv Cov Neeg Kho Tshuab (Annealed thiab Tempered Xeev):
| Ø (hli) | Yam tseem ceeb | RP0.2 (MPA) | RM (MPA) | A5 (%) | Av (J) |
|---|---|---|---|---|---|
| Tsawg dua los yog sib npaug rau 160 | QT800 | Ntau dua los yog sib npaug rau 600 | 800-950 | Ntau dua los yog sib npaug rau 12 | Ntau dua los yog sib npaug rau 20 |
| Tsawg dua los yog sib npaug rau 160 | QT700 | Ntau dua los yog sib npaug rau 500 | 700-850 | Ntau dua los yog sib npaug rau 13 | Ntau dua los yog sib npaug rau 25 |
Paib muaj zog ntawm kev nce kub (daws annealed xeev)
| Temp (degree) | RP1.0MPA (+ QT800) | RP0.2MPA (+ QT700) |
|---|---|---|
| 100 | Ntau dua los yog sib npaug rau 515 | Ntau dua los yog sib npaug rau 460 |
| 150 | Ntau dua los yog sib npaug rau 495 | Ntau dua los yog sib npaug rau 445 |
| 200 | Ntau dua los yog sib npaug rau 475 | Ntau dua los yog sib npaug rau 430 |
| 250 | Ntau dua los yog sib npaug rau 460 | Ntau dua los yog sib npaug rau 415 |
| 300 | Ntau dua los yog sib npaug rau 440 | Ntau dua los yog sib npaug rau 395 |
| 350 | Ntau dua los yog sib npaug rau 405 | Ntau dua los yog sib npaug rau 365 |
| 400 | Ntau dua los yog sib npaug rau 355 | Ntau dua los yog sib npaug rau 330 |
Cov Khoom Siv Lub Cev
Magnetism: tam sim no
Ntom ntom (kg / dm³): 7.7
Thermal conductivity (20 degree): 30
Hluav taws xob tiv thaiv hluav taws xob (ω mm² / m): 0.6
Cov cua sov tshwj xeeb (20 degree): 460
Vuam
Stainless hlauAISI 420 / 1.4021Nws yog weldable los ntawm cov txheej txheem sib xws xws liTig, mag thiab nce, tab sis nws tsis haum rau kev tuav arc vuam.
Zam kev roj av nrog nitrogen lossis hydrogen, raws li lawv tsis zoo cuam tshuam rau lawv cov khoom siv neeg.
Ua ntej soldering, preheat ntawm 100-300 degrees.
Tom qab soldering, txias kom tsawg dua 120℃thiab ces quench rau kwv yees li . 650 degree.
Kev Kho Cua Sov thiab Kev Ua Si Kub
Mos annealing (+ a): 745-825℃(qeeb txias hauv qhov cub lossis huab cua)
Kub thawj: 1100-800℃(qeeb txias hauv qhov cub)
Quenching (+ QT): 950-1050 Qib (Huab Cua, Roj lossis polymer quentenching)
Tempering (+ Qt700): 650-750 degree
Tempering (+ QT800): 600-700 Qib
Puas yog 1.4021 sib nqus?
Yog lawm. 1.4021 stainless hlau yog lub martensitic, sib nqus thiab cov sib nqus thiab cov khoom siv tsis txaus siab nrog corrosion resistance cov yam ntxwv.
