Stainless hlau khoom:
Cov khoom siv stainless hlau yog ib yam khoom siv, muaj ze rau daim iav ci ci, kov lub zog thiab txias, belongs rau cov khoom siv kho kom zoo nkauj avant-garde, muaj kev tiv thaiv corrosion zoo heev, molding, compatibility thiab toughness thiab lwm yam series yam ntxwv, siv nyob rau hauv hnyav kev lag luam. , lub teeb kev lag luam, kev lag luam khoom siv hauv tsev thiab kev kho kom zoo nkauj hauv tsev thiab lwm yam kev lag luam.
Stainless acid resistant steel hu ua stainless hlau, nws yog tsim los ntawm stainless hlau thiab acid resistant steel ob qhov chaw, nyob rau hauv luv luv, muaj peev xwm tiv taus atmospheric corrosion ntawm hlau hu ua stainless hlau, thiab muaj peev xwm tiv taus tshuaj nruab nrab corrosion ntawm hlau hu ua acid resistant steel. hais lus, cov ntsiab lus chromium ntawm Cr yog ntau dua 12% ntawm cov hlau muaj cov yam ntxwv ntawm stainless hlau.
Stainless hlau Classification:
Muaj ntau txoj hauv kev ntawm kev faib cov hlau tsis muaj steel, ntawm cov uas feem ntau yog cov hauv qab no.
Kev faib tawm ntawm metallographic qauv:
Yuav muab faib ua austenitic stainless hlau, ferrite stainless hlau, martensitic stainless hlau, duplex stainless hlau, nag lossis daus hardening stainless hlau.
Chemical composition classification:
Yeej tuaj yeem muab faib ua chromium stainless hlau (xws li ferrite series, martensite system) thiab chromium nickel stainless hlau (xws li austenite system, txawv txav series, nag lossis daus hardening series) ob lub tshuab.
Raws li hom corrosion kuj:
Nws tuaj yeem muab faib ua kev ntxhov siab corrosion resistant stainless hlau, pitting corrosion resistant stainless hlau, intergranular corrosion resistant stainless hlau, thiab lwm yam.
Classified los ntawm functional nta:
Muaj peev xwm muab faib ua dawb txiav stainless hlau, tsis-sib nqus hlau stainless, tsis kub stainless hlau, siab zog stainless hlau.
Muaj ze li ntawm 100 hom stainless hlau uas tau suav nrog ntau yam qauv hauv ntiaj teb, thiab nrog kev kawm ntawm kev tshawb fawb thiab thev naus laus zis thiab kev txhim kho kev lag luam thiab kev ua liaj ua teb, cov qib stainless hlau tshiab kuj nce ntxiv.Rau qhov paub txog qib stainless hlau. , nws cov chromium sib npaug [Cr] thiab npib tsib xee sib npaug [Ni] tuaj yeem xam raws li nws cov tshuaj muaj pes tsawg leeg, thiab microstructure thiab cov khoom ntawm cov hlau tuaj yeem kwv yees kwv yees kwv yees los ntawm kev siv Schaeffler-Delong stainless hlau microstructure daim ntawv.
Kev faib tawm ntawm Matrix:
1, ferrite stainless hlau.Chromium 12% ~ 30% Nws corrosion kuj, toughness thiab weldability nce nrog nce ntawm chromium cov ntsiab lus, thiab nws cov chloride kev nyuaj siab corrosion kuj zoo dua lwm yam stainless hlau.
2. Austenitic stainless hlau.Nws muaj ntau dua 18% chromium, txog 8% npib tsib xee thiab ib qho me me ntawm molybdenum, titanium, nitrogen thiab lwm yam khoom.Kev ua haujlwm zoo, kev tiv thaiv corrosion rau ntau yam xov xwm.
3. Austenite-ferrite duplex stainless hlau.Nws muaj qhov zoo ntawm austenite thiab ferrite stainless hlau, thiab muaj superplasticity.
Martensitic stainless hlau.High lub zog, tab sis tsis zoo plasticity thiab weldability.
Stainless hlau tus qauv steel tooj sib piv cov lus thiab cov lus ceev
| Tuam Tshoj | Nyiv | Teb chaws USA | Kaus lim qab teb | Cov European Union | Australia | Taiwan, Suav | Qhov ceev (t / m3) |
| GB / T20878 | JIS | ASTM | KS | BSEN | AS | CNS | |
| SUS 403 | 403 | STS403 | — | 403 | 403 | 7.75 ib | |
| 20 Cr13 | SUS420J1 | 420 | STS420J1 | 1.4021 | 420 | 420j 1 | 7.75 ib |
| 30 nc13 | SUS420J2 | — | STS420J2 | 1.4028 ib | 420j 2 | 420j 2 | 7.75 ib |
| SUS 430 | 430 | STS 430 | 1.4016 | 430 | 430 | 7.70 ib | |
| SUS 440A | 440a ua | STS 440A | — | 440a ua | 440a ua | 7.70 ib | |
| SUS 304 | 304 | STS 304 | 1.4301 ib | 304 | 304 | 7.93 ib | |
| SUS 304 L | 304l ua | STS 304 L | 1.4306 ib | 304l ua | 304l ua | 7.93 ib | |
| SUS 316 | 316 | STS 316 | 1.4401 Nws | 316 | 316 | 7.98 ib | |
| SUS 316L | 316l ua | STS 316L | 1.4404 ib | 316l ua | 316l ua | 7.98 ib | |
| SUS 321 | 321 | STS 321 | 1.4541 ib | 321 | 321 | 7.93 ib | |
| 06Cr18Ni11 Nb | SUS 347 | 347 ib | STS 347 | 1.455 Nws | 347 ib | 347 ib | 7.98 ib |
Post lub sij hawm: Aug-19-2021