S17400 Stainless Hlau vs AISI 316 Stainless Hlau
Stainless hlau (SS) tuaj nyob rau hauv tag nrho cov duab, qhov ntau thiab tsawg, thiab muaj pes tsawg leeg. Nws yog ib qho hlau uas muaj ntau yam sib txawv xws li hlau, npib tsib xee, thiab chromium nrog kev tiv thaiv corrosion zoo dua piv rau nws cov khoom siv. Kev siv sib txawv xav tau cov khoom sib txawv. Kab lus no yuav tsom mus rau ob hom tshwj xeeb:17-4thiab316 stainless hlau.
1. Tshuaj muaj pes tsawg leeg:
- S17400 Stainless hlau (17-4 PH):17-4PH Stainless Hlau Yeeb, kuj hu uaSAE Hom 630, yog ib hom thiab tshwj xeeb ruaj khov steel siv nyob rau hauv ntau hom kev lag luam thiab kev siv. Cov lej "17-4" xa mus rau nws cov muaj pes tsawg leeg: ≈17% chromium thiab ≈4% npib tsib xee. Nws kuj tuaj yeem suav nrog ntawm 3 thiab 5% tooj liab.
- AISI 316 Stainless hlau: AISI 316, tseem hu ua ASTM A240 Hom 316, muaj kwv yees li 16-18% chromium, 10-14% nickel, 2-3% molybdenum, 2% manganese, {{9 }}.
2. Corrosion Resistance:
- UNS S17400 Stainless hlau:Wnr.1.4542 stainless hlaumuaj qhov zoo corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig uas nag lossis daus hardening tau txais txiaj ntsig. Nws tsis tiv taus corrosion li AISI 316 hauv qee qhov chaw corrosive.
- AISI 316 Stainless Steel: Alloy 316 yog lub npe nrov rau nws cov kev tiv thaiv corrosion zoo tshaj, tshwj xeeb tshaj yog nyob rau hauv cov cheeb tsam uas muaj chloride nplua nuj xws li marine chaw thiab kev lag luam tshuaj. Nws nthuav tawm zoo heev rau pitting, crevice corrosion, thiab dav dav corrosion.
3. Lub zog thiab Hardness:
- S17400 Stainless hlau:17-4 PH stainless hlau phajyog nag lossis daus hardened, muab siab zog thiab zoo heev mechanical zog, nrog rau zoo toughness thiab hardness tom qab kev kho cua sov.
- UNS S31600 Stainless hlau: Alloy 316 muaj lub zog qis dua piv rau S17400, tab sis nws tswj cov khoom siv zoo thiab kev ua haujlwm zoo, ua rau nws tsim nyog rau ntau yam kev siv.
4. Thaum tshav kub kub Resistance:
Ob leeg S17400 thiabSUS 316 stainless hlaumuab cov cua sov zoo. Txawm li cas los xij, S17400 tej zaum yuav muaj kev txo qis ntawm qhov kub siab dua vim nag lossis daus hardening.
5. Fabrication thiab Weldability:
Ob qho khoom siv tau yooj yim fabricated thiab welded siv ntau txoj kev. Txawm li cas los xij, AISI 630 17-4PH yuav xav tau kev txiav txim siab tshwj xeeb thaum lub sij hawm vuam vim nws cov yam ntxwv ntawm nag lossis daus hardening.
6. Daim ntawv thov:
- 17-4 Stainless Steel: Cov ntawv thov feem ntau suav nrog cov khoom siv dav hlau, cov khoom siv tshuaj lom neeg, cov twj tso kua mis, thiab cov khoom siv valve.
- AISI 316 / 1.4401 / 1.4436 Stainless hlau: Dav siv nyob rau hauv marine ib puag ncig, tshuaj ua, khoom siv tshuaj, khoom noj khoom haus, thiab khoom siv kho mob.
