ASTM A312 TP321H Stainless Hlau Seamless Pickling Tube
ASTM A312 TP321H Stainless Hlau Seamless Pickling Tube
ASTM A312 TP321H yog seamless stainless hlau raj kho nrog titanium stabilizer, muab nws zoo heev tiv thaiv intergranular corrosion ntawm kub kub (txog 1500℃F). Nws cov yam ntxwv tseem ceeb suav nrog cov ntsiab lus ntawm cov pa roj carbon ntau rau kev txhim kho siab - qhov kub thiab txias, zoo heev - kub toughness, thiab yooj yim ntawm machining thiab vuam. "Pickling" yog hais txog cov txheej txheem kho saum npoo uas siv cov kua qaub tom qab tsim khoom kom tshem tawm cov nplai thiab xeb.
Dab tsi yog cov yam ntxwv ntawm 321 stainless hlau?
321 stainless hlau muaj qhov ceev ntawm 0.29 g / cm³. Nws elastic modulus yog 193 GPa. Nws resistivity yog 72 μΩ·cm. Nws thermal conductivity ntawm 100℃yog 16.1 W / mK, thiab ntawm 500℃nws yog 22.2 W / mK.
ASTM A312 yog tus qauv tsim los ntawm American Society for Testing and Materials (ASTM), hu ua "Seamless and Welded Nominal Tubing of Austenitic Stainless Steel." Nws yog ib qho tseem ceeb tshaj plaws thiab dav siv cov qauv hauv kev ua haujlwm ntawm stainless hlau txheej txheem piping. TP321H yog qib raws li tus qauv Asmeskas no. Piv nrog rau tus qauv TP321, qib H muaj cov ntsiab lus qis dua ntawm tsuas yog 0.04% kom ntseeg tau tias muaj zog nkag siab dua thiab siab -kub durability. Nws yog tsim seamlessly siv xuas nrig ntaus thiab txias kos duab / txias dov txheej txheem, uas ua rau ib tug zoo ib yam qauv thiab muaj zog siab kuj. Pickling yog ib qho tseem ceeb tshaj plaws - cov kauj ruam kho hauv cov txheej txheem kho saum npoo.
ASTM A312 Stainless Hlau Seamless Yeeb Nkab Chemical Composition
| QIB |
UNS. |
ASTM A312 CHEMICAL COMPOSITION % MAXIMUM | |||||||
|---|---|---|---|---|---|---|---|---|---|
| C | MN | P | S | SI | CR | NI | Ti | ||
| TP 321 H | S32109 | 0.04-0.10 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0-19.0 | 9.0-12.0 |
4 (C + N) min; 0.70 max |
Qhov tseem ceeb ntawm Pickling
Cov txheej txheem pickling rau cov kav hlau tsis muaj steel feem ntau yog immersing cov yeeb nkab hauv cov kua dej uas muaj nitric acid thiab hydrofluoric acid. Los ntawm cov tshuaj tiv thaiv tshuaj, cov nplai oxide dissolves, nthuav tawm ib yam, silvery -dawb xim hlau substrate. Nws lub hom phiaj tseem ceeb yog tshem tawm cov nplai oxide uas ua rau saum npoo ntawm cov hlau tsis huv tom qab siab - qhov kub thiab txias kev kho mob, nrog rau cov kab mob sib kis hauv qhov chaw.
Tom qab pickling tshem tawm cov nplais oxide, ua tiav, ntom, thiab chromium-nplua nuj passivation zaj duab xis tuaj yeem hloov kho ntawm cov yeeb nkab steel, yog li rov ua kom cov yeeb nkab corrosion kuj. Nyob rau tib lub sijhawm, qhov chaw ntxuav tau yooj yim tsis yog - kev kuaj kev puas tsuaj, xws li kev ntsuas nkag mus, tso cai rau kom pom tseeb ntawm qhov tawg, wrinkles, thiab lwm yam tsis xws luag.
ASTM A312 TP321H Stainless Hlau Seamless Yeeb Nkab Mechanical Properties
| SS QIB | Kev kho cua sov | Tensile zog, min ksi [MPa] | Yield zog, min ksi [MPa] | |
|---|---|---|---|---|
| Txias tiav lawm | Kub Tiav lawm | |||
| TP 321 H | 2000℃F [1100 degree] | 1925℃F [1050 degree] | 75 [515] | 30 [205] |
ASTM A312 TP321H Stainless Hlau Seamless Yeeb Nkab Daim Ntawv Thov:
Kev lag luam Petrochemical: Cov txheej txheem piping rau catalytic cracking units, hloov kho chav tsev, thiab cua sov rauv, tshwj xeeb tshaj yog haum rau cov yeeb nkab seem uas yuav tsum tau nquag vuam.
Fais fab Generation (Coal Power): Superheater thiab reheater piping nyob rau hauv boilers, thiab siab -kub, siab - siab tshuab, xws li lub ntsiab chav piping.
Thermal Engineering: Kub exchangers thiab high -kub flue gas piping.
Khoom noj khoom haus thiab tshuaj lag luam: Vim nws du, huv si pickled nto thiab zoo heev corrosion kuj, nws yuav siv tau nyob rau hauv tej yam txheej txheem piping daim ntaub ntawv.
Gnee Steel tshwj xeeb hauv kev tsim khoom ntawm ntau yam khoom siv stainless hlau. Gnee Steel cov khoom ntim khoom suav nrog: Hlau Strapping: Cov kav dej nrog ib txoj kab uas hla ntawm 3 ntiv tes los yog tsawg dua yog feem ntau khi ua ke nrog polypropylene zaj duab xis los tiv thaiv xeb thaum thauj dej hiav txwv, thiab tom qab ntawd khi nrog cov hlua hlau. Ntoo Cases / Crates: Cov kav dej feem ntau yog ntim rau hauv cov rooj ntoo lossis cov thawv los tiv thaiv cov kav dej thaum lub sij hawm thauj mus los, tshwj xeeb tshaj yog cov uas ntev dua los yog muaj qhov loj dua. Seaworthy Export Ntim: Cov neeg muag khoom feem ntau siv cov txheej txheem seaworthy export ntim, uas tuaj yeem suav nrog ntau yam khoom siv thiab cov txheej txheem los tiv thaiv cov kav dej thaum thauj. Tarpaulin Ntim: Qhov no tiv thaiv los nag, dej hiav txwv, thiab lwm yam sab nraud los ntawm kev nkag mus rau lub thawv xa khoom thaum thauj. Gnee Steel tshwj xeeb hauv kev tsim thiab muag cov ntaub ntawv alloy. Gnee Steel cov khoom siv dav siv hauv aerospace, tshuaj, hluav taws xob, tsheb, thiab hluav taws xob nuclear, thiab peb tuaj yeem muab cov khoom siv alloy customized raws li cov neeg siv khoom xav tau. Rau cov khoom siv alloy pricing lossis customized alloy cov ntaub ntawv daws teeb meem, thov hu rau peb rau ib qho kev tsocai:ru@gneesteelgroup.com
