1. Cov Khoom Siv Tshwj Xeeb
Txheem:Tseem ceeb liDin 17175 / En 10216-2
Tus Qib Hlau: 13Crmo4-5(Qhov no yog lub npe uas koj yuav pom hauv cov xaj thiab cov ntaub ntawv cov ntaub ntawv txheej txheem).
Cov Khoom Siv Khoom: 1.5682
Cov Qauv Txheej Txheem:
ASTM (USA): A335 P11
ISO:13Crmo4-5
2. Tshuaj lom neeg sib xyaw
Tus yam ntxwv tseem ceeb ntawm 1.5682 yog nws li xws li muaj pes tsawg leeg, uas muab nws txhim kho cov khoom piv rau cov roj carbon hlau. Tus neeg raug suav yog:
| Lub ntsiab | Cov ntsiab lus (%) |
|---|---|
| Carbon (c) | 0.08 - 0.18 |
| Silicon (si) | Tsawg dua los yog sib npaug rau 0.35 |
| Manganese (mn) | 0.40 - 1.00 |
| Phosphorus (p) | Tsawg dua los yog sib npaug rau 0.025 |
| Sulphur (s) | Tsawg dua los yog sib luag rau 0.020 |
| Chromium (cr) | 0.70 - 1.15 |
| Molybdenum (mo) | 0.40 - 0.60 |
Vim li cas qhov teeb meem no:Qhov sib ntxiv ntawmChromium (cr)txhim kho kom tsis kam mus rau oxidation (scaling) thiab corrosion.Molybdenum (mo)Ua kom muaj zog ntxiv, tshwj xeeb tshaj yog thaum muaj kev kub siab, thiab txhim kho creep kuj.
3. Cov yam ntxwv tseem ceeb thiab cov yam ntxwv
Siab - kub lub zog:Nov yog thawj qhov laj thawj rau kev siv 13crmo4-5. Nws tswj hwm nws cov kev siv zog ntawm kev nce siab kub, tawm tsam "nkag" (kev tawm tsam qeeb (tsis muaj kev ntxhov siab qeeb).
Zoo weldability:It can be welded using common methods, though pre-heating and post-weld heat treatment (PWHT) are often required to prevent cracking and restore the material's microstructure.
Oxidation tsis kam:Cov ntsiab lus chromium muab cov roj oxide txheej, ua rau nws haum rau kev pabcuam hauv chav thiab lwm cov oxidizing cua.
Taus:Nws muaj cov kev cuam tshuam zoo heev, txawm tias muaj qhov kub ntxhov.
4. Cov Ntawv Thov Tib Neeg
Vim nws qhov siab - kub cov khoom, 1.5682 Seamless yeeb nkab yog dav siv hauv cov khoom lag luam muaj zog thiab cov txheej txheem kev lag luam rau cov tshuab nias:
Tub tshib Tube:Superheaters, reseaters, thiab dej phab ntsa vaj huam nyob hauv cov pob zeb pob zeb pob zeb hluav taws xob.
Chav kav dej:Cov kab ntim chav tsev thiab siab {- kub, siab- siab} Lub siab tso tawm.
Cov tshuab hluav taws kub:Hlab thiab piping hauv cov tshuab ua haujlwm ntawm qhov kub thiab kev ntsuas.
Petrochemical Kev Lag Luam:Rau cov piping hauv kev ua kom huv thiab tshuaj chemical uas kom nce qhov kub tau koom nrog.
5. Muaj ntau thiab tsawg thiab qhov ntev
Raws li cov yeeb nkab seamless, nws muaj nyob rau hauv ntau qhov ntau thiab tsawg, txhais los ntawm:
Sab nraud ntawm lub taub (OD):Feem ntau los ntawm ib ncig 10 hli txog li 600-700 hli lossis ntau dua.
Phab ntsa tuab (wt):Muaj nyob rau ntau lub sijhawm (piv txwv li, Sch 40, Sch 40, SCH 16, XXS) lossis cov phab ntsa tshwj xeeb hauv millimeters.
Ntev:Random ntev (piv txwv li, 6-7 meters) lossis tsau txiav ntev.
Lub ntsiab
Thaum koj pom "1.5682 Seamless steel yeeb nkab," koj tab tom saib aSeamless, chromium - molybdenum alloy steel rajlub npe hu ua13Crmo4-5Cov. Nws yog tshwj xeeb engineered rauhigh - kub thiab siab - qhov kev pab cuam siab, ua nws cov khoom tseem ceeb hauv lub zog thiab cov txheej txheem kev lag luam hnyav. Nws seamless dab ua kom nws tsis muaj kev xav tau weld ntev, muab kev ncaj ncees zoo nkauj thiab kev ntseeg tau.
