Qhov sib txawv tseem ceeb ntawm 316L stainless hlau thiab 316Ti stainless hlau
Qhov sib txawv tseem ceeb ntawm 316L stainless hlau thiab 316Ti stainless hlau
Qhov sib txawv tseem ceeb nyob rau hauv kev ruaj ntseg: 316L stainless hlau muaj cov ntsiab lus carbon tsawg (ntau tshaj 0.03%), muab cov weldability zoo thiab tsis kam mus rau ib puag ncig corrosion; thaum 316Ti stainless hlau muaj cov titanium ntxiv (cov khoom stabilizing), uas tiv thaiv carbide tsim, yog li muab zoo heev - kub lub zog thiab tsis kam mus rau intergranular corrosion, tab sis ntawm tus nqi siab dua . 316L yog haum rau cov qauv welded dav, thaum 316Ti yog tsim rau cov ntawv thov uas yuav tsum tau ntev ntev - qhov kub thiab txias.
Dab tsi yog 316Ti stainless hlau?
316Ti (UNS S31635) yog molybdenum -muaj austenitic stainless hlau nrog ntxiv titanium. Piv rau ib txwm chromium-nickel austenitic stainless hlau (xws li 304), 316 alloy muaj kev tiv thaiv zoo tshaj plaws rau kev xeb thiab pitting / crevice corrosion.
Dab tsi yog 316L stainless hlau?
316L stainless hlau yog austenitic chromium-nickel- molybdenum alloy. Nws muaj kev tiv thaiv zoo corrosion nyob rau hauv ntau yam tshuaj thiab kev lag luam ib puag ncig, ua rau nws zoo tagnrho rau kev siv xws li cov khoom siv kho mob, khoom siv hauv tsev, thiab cov khoom siv tsheb. Nws cov ntsiab lus carbon tsawg ua rau nws tsim nyog rau vuam thiab tsim cov txheej txheem yam tsis muaj kev pheej hmoo ntawm carbide nag lossis daus.
Dab tsi yog 316Ti stainless hlau?
316Ti stainless hlau tseem yog austenitic alloy nrog cov ntsiab lus siab tshaj plaws ntawm 0.08%. Zoo li lwm cov qib ferritic stainless hlau, cov hlau no ua haujlwm ntawm qhov kub siab dua li lwm qib austenitic stainless hlau (txog li 600℃F). Txawm li cas los xij, nws qhov kev tiv thaiv zoo tshaj plaws rau cov tshuaj chloride pitting thiab crevice corrosion ua rau nws zoo tagnrho rau cov ntawv thov raug rau cov dej hiav txwv lossis cov dej tsis huv, xws li cov khoom siv hauv hiav txwv xws li cov kiv cua thiab cov shafts, thiab cov khoom siv ua zaub mov xws li cov tso tsheb hlau luam thiab cov twj tso kua mis.
Cov tshuaj muaj pes tsawg leeg ntawm stainless hlau 316L thiab 316Ti
Raws li ASTM A240 / A240M thiab ASME SA240 / SA240M cov qauv, qhov sib txawv ntawm lawv cov tshuaj muaj pes tsawg leeg yog raws li hauv qab no: 316L siv cov ntsiab lus carbon tsawg los tiv thaiv kev ua haujlwm vuam, thaum 316Ti ntxiv titanium los txhim kho siab - qhov kub thiab txias.
|
Element |
316L (UAS S31603) |
316 Ti (UNS S31635) |
Qhov cuam tshuam tseem ceeb |
|---|---|---|---|
|
Cov pa roj carbon (C) |
0.03 max |
0.08 max |
Ultra- qis hauv 316L tiv thaiv IGC hauv welds ntawm ambient; siab dua hauv 316Ti tab sis Ti khi nws rau cua sov. |
|
Manganese (Mn) |
max 2.00 Nws |
max 2.00 Nws |
Zoo tib yam deoxidizer. |
|
Silicon (Si) |
0.75 max |
0.75 max |
Tsis txawv. |
|
Phosphorus (P) |
0.045 max |
0.045 max |
Ib yam. |
|
Sulfur (S) |
0.030 max |
0.030 max |
Tsis txawv. |
|
Chromium (Cr) |
16.00-18.00 |
16.00-18.00 |
Zoo tib yam passivation. |
|
Molybdenum (hli) |
2.00-3.00 |
2.00-3.00 |
Tsis txawv; pab pitting. |
|
Nickel (Ni) |
10.00-14.00 |
10.00-14.00 |
Zoo tib yam stability. |
|
Titanium (Ti) |
- |
5x(C+N) min, 0.70 max |
Ti hauv 316Ti tiv thaiv IGC thaum kub siab; ua 316l. |
|
Nitrogen (N) |
0.10 max |
0.10 max |
Ib yam. |
|
Hlau (Fe) |
Tshuav |
Tshuav |
Base matrix. |
Cov titanium (0.4-0.7%) hauv 316Ti tsim titanium carbide, uas tiv thaiv cov qoob loo ntawm qhov kub thiab txias; thaum cov ntsiab lus qis ntawm 316L ua rau nws haum rau qhov kub thiab txias, tab sis nws siv rau qhov kub thiab txias yog txwv.
Mechanical zog ntawm stainless hlau 316 thiab 316L
Raws li ASTM A240 / A240M thiab ASME SA240 / SA240M cov qauv, cov khoom siv kho tshuab ntawm ob cov ntaub ntawv no zoo ib yam, tab sis 316Ti muaj lub zog ntau dua.
|
Khoom |
316L Min |
316 TiM |
Qhov tseem ceeb sib txawv |
|---|---|---|---|
|
Tensile zog (MPa) |
485 |
515 |
316Ti muaj zog rau kev thauj khoom. |
|
Yield zog (MPa) |
170 |
205 |
316Ti siab dua rau deformation kuj. |
|
Elongation (%) |
40 |
40 |
Ib yam. |
|
Hardness (HRB max) |
95 |
95 |
Tsis txawv. |
|
Impact Toughness (J) |
~ 100 at RT |
~ 100 at RT |
Zoo sib xws. |
Cov khoom titanium hauv 316Ti tsis cuam tshuam rau kev ua haujlwm ntawm chav tsev kub, tab sis nws txhim kho lub peev xwm tswj kev ua haujlwm ntawm qhov kub thiab txias.
Rau SA240 316Ti stainless hlau, nws qhov siab- qhov kub thiab txias ua kom zoo dua yog pom tseeb.
Lub cev muaj zog ntawm 316L thiab 316Ti stainless hlau
|
Khoom |
316l ua |
316Ti nqi |
Sau ntawv |
|---|---|---|---|
|
Qhov ceev (g / cm³) |
8.00 |
8.00 |
Ib yam. |
|
Thermal conductivity (W / m · K ntawm 100 degree) |
14.6 |
14.6 |
Tsis txawv. |
|
Thaum tshav kub kub tshwj xeeb (J / kg·K) |
500 |
500 |
Ib yam. |
|
Thermal Expansion (10^-6 / degree, 20-100 degree) |
16.5 |
16.5 |
Tsawg rau ob leeg. |
High -Tsub Ua Haujlwm
316L Stainless hlau
316L ua tau zoo ntawm qhov kub thiab txias thiab muaj kev tiv thaiv oxidation zoo. Txawm li cas los xij, ntawm qhov kub thiab txias, nws qhov kev ua tau zoo degrades vim muaj peev xwm carbide nag lossis daus, ua rau intergranular corrosion.
316Ti Stainless hlau
Vim yog qhov sib ntxiv ntawm titanium, 316Ti ua tau zoo tshwj xeeb hauv qhov chaw kub siab -. Titanium stabilizes microstructure thiab tiv thaiv carbide nag lossis daus. Qhov kev ruaj ntseg no tso cai rau 316Ti kom tswj tau nws cov khoom siv kho tshuab nyob rau lub sijhawm ntev, ua rau nws zoo tagnrho rau cov ntawv thov uas yuav tsum tau ua kom ntev ntev rau qhov kub thiab txias, xws li cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob.
Corrosion Resistance
316L stainless hlau nthuav tawm zoo heev tiv thaiv intergranular corrosion nyob rau hauv marine, khoom noj khoom haus, thiab kws industries. 316Ti muaj superior corrosion kuj nyob rau hauv kub kub, ua rau nws yog ib qho zoo tagnrho xaiv rau cov tshuaj thiab petrochemical industries.
Thaum tshav kub kub Resistance
Qhov ntsuas kub ntawm 316L thiab 316Ti
Thaum tshav kub kub tsis kam yog lwm yam tseem ceeb uas sib txawv ntawm 316L thiab 316Ti stainless hlau.
316L Stainless hlau:Thaum 316L tuaj yeem tiv taus qhov kub nruab nrab, qhov ntev ntev ntawm qhov kub siab tuaj yeem ua rau carbide nag lossis daus, ua rau muaj kev cuam tshuam ntawm intergranular. Nws cov ntsiab lus carbon tsawg pab txo qhov kev pheej hmoo no, ua rau nws haum rau luv luv -lub sij hawm siab - kub raug.
316Ti Stainless hlau:Lub xub ntiag ntawm titanium hauv 316Ti txhim kho nws txoj kev ruaj ntseg ntawm qhov kub thiab txias los ntawm kev tiv thaiv kev tsim ntawm chromium carbides. Qhov kev ruaj ntseg no tso cai rau 316Ti kom tswj tau nws cov khoom siv kho tshuab thiab kev tiv thaiv corrosion txawm tias nyob rau lub sijhawm ntev siab - kub raug. Yog li, 316Ti yog qhov tsim nyog rau cov ntawv thov uas xav tau kev ua haujlwm ruaj khov nyob rau hauv siab - qhov kub thiab txias, xws li cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob.
Thaum xaiv cov khoom siv:
Rau kev ua haujlwm vuam tsis tu ncua thiab tsis xav tau ib puag ncig ib puag ncig, 316L stainless hlau muab tus nqi - siv tau zoo.
Rau qhov xav tau siab - daim ntawv thov kub uas xav tau qhov tshwj xeeb ntev - lub sij hawm ruaj khov thiab lub zog, xaiv 316Ti stainless hlau.
