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 Nkab, 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" yog hais txog 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% npib tsib xee, 2-3% molybdenum, 2% manganese, 0.03% max carbon, 0.03% max phosphorus, max sulfur% 0.03% thiab max sulfur.
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 chloride - nplua nuj ib puag ncig 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 cov khoom siv, ua rau nws haum rau ntau yam kev siv.
| Khoom Qib & Cov Qauv | Tensile zog (min) | Yield zog (0.2% Offset, min) | Elongation hauv 2 "(min) | Hardness (Tswj) |
| SS316 (Annealed) | 75 ksi (515 MPa) | 30 ksi (205 MPa) | 40% | 150-190 HWB |
| 17-4 PH (Condition A - Solution) | 150 ksi (1034 MPa) | 110 ksi (758 MPa) | 10% | ~ 36 HRC |
| 17-4 PH (Txoj Cai H900 - Hnub nyoog) | 190 ksi (1310 MPa) | 170 ksi (1170 MPa) | 10% | ~40-45 HRC |
| 17-4 PH (Txoj Cai H1150 - Hnub nyoog) | 135 ksi (930 MPa) | 105 ksi (724 MPa) | 16% | ~ 28-35 HRC |
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. Kev Siv Lub Hom Phiaj Tseem Ceeb:
Txhawm rau txhim kho lub neej ntev, cov kws tsim khoom faib cov ntaub ntawv no raws li cov txheej txheem kev ntxhov siab vs. chemical aggression:
Qhia rau SS316 rau:Cov txheej txheem piping tes hauj lwm, cov khoom siv hluav taws xob, cov khoom siv tshuaj lom neeg, cov raj xa dej, thiab cov khoom siv marine deck.
Qhia rau UNS S17400 (17-4 PH) rau:High-Torque twj tso kua mis shafts, valve stems, hydraulic thooj voos kheej kheej, aerospace structural fasteners, turbine hniav, thiab hnyav - lub luag hauj lwm iav systems.
Ua kom tiav Sourcing thiab Ua raws li kev lees paub nrog HT PIPE
Seb koj cov phiaj xwm kev tsim kho xav tau hnyav- phab ntsaSS316 seamless piping pob khoomlos yog siab - tensileASTM A564 17-4 PH forged round bars thiab machined valve Cheebtsam, HT PIPE muab cov ntaub ntawv pov thawj tsis zoo.
Txhua yam khoom profile peb xa khoom suav nrog kev davEN 10204 3.1 Mill Test Certificate (MTC)paub meej tias cov kauj ruam kho cua sov, cov cav ntsuas kev ntsuas, thiab ua tiav cov tshuaj muaj pes tsawg leeg ua raws.
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