Dab tsi yog qhov txawv ntawm 410 thiab 420 stainless hlau?

Qhov sib txawv tseem ceeb ntawm 410 stainless hlau bar thiab 420 stainless hlau bar yog raws li nram no:

I. Tshuaj muaj pes tsawg leeg

1.410 stainless hlau:

- Cov ntsiab lus carbon (C) feem ntau nyob ib puag ncig 0.15%.

- Chromium (Cr) cov ntsiab lus nyob nruab nrab ntawm 11.5% - 13.5%.

- Lwm cov ntsiab lus xws li manganese (Mn), silicon (Si), phosphorus (P), sulfur (S) thiab lwm cov ntsiab lus kuj tau teev tseg raws li.

2.420 stainless hlau:

- Cov ntsiab lus carbon yog qhov siab, feem ntau nyob rau hauv thaj tsam ntawm 0.16% - 0.25%.

- Cov ntsiab lus chromium kuj siab, txog 12.0% - 14.0%.

- Nws kuj muaj qee qhov nyiaj ntawm molybdenum (Mo), vanadium (V) thiab lwm yam los txhim kho nws cov kev ua tau zoo.

II. Cov yam ntxwv ua haujlwm

1. Hardness:

- 410 stainless hlau bar: Lub hardness kuj tsawg. Tom qab kev kho cua sov, qhov nyuaj tuaj yeem ncav cuag HRC40 - 45.

- 420 stainless hlau bar: Nws muaj qhov nyuaj dua thiab tuaj yeem ncav cuag HRC50 - 55 tom qab kev kho cua sov. Nws yog haum rau lub sij hawm uas yuav tsum tau siab dua hardness.

2. Corrosion kuj:

- Ob leeg muaj qee qhov kev tiv thaiv corrosion, tab sis corrosion kuj ntawm 410 stainless hlau yog me ntsis qis dua li ntawm 420 stainless hlau.

- 410 stainless hlau ua tau zoo nyob rau hauv ib puag ncig qhuav, tab sis nws muaj feem xyuam rau corrosion nyob rau hauv cov av ntub los yog corrosive ib puag ncig.

- Vim nws cov ntsiab lus siab chromium thiab lwm yam alloying ntsiab lus, 420 stainless hlau muaj kuj zoo corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv ib co tsis muaj zog corrosive ib puag ncig.

3. Lub zog:

- Lub zog ntawm 420 stainless hlau tuav yog feem ntau siab dua li ntawm 410 stainless hlau tuav.

- Qhov no ua rau 420 stainless hlau zoo dua rau cov khoom siv kho tshuab thiab cov khoom siv uas dais loj dua.

III. Siv

1.410 stainless hlau tuav:

- Feem ntau siv rau hauv cov khoom siv kho tshuab dav dav, bolts, ceev, li qub, thiab lwm yam, qhov twg hardness thiab corrosion kuj tsis siab dhau.

- Nws kuj tseem siv tau rau qee qhov chaw dai kom zoo nkauj, xws li railings, handrails, thiab lwm yam.

2.420 stainless hlau pas nrig:

- Nws yog tsuas yog siv los tsim cov riam, cov cuab yeej phais mob, cov kabmob thiab lwm yam uas yuav tsum tau muaj zog hardness thiab corrosion kuj.